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2006 MRS Spring Meeting Logo2006 MRS Spring Meeting & Exhibit



April 17-21, 2006
| San Francisco
Meeting Chairs: J. Charles Barbour, Paul S. Drzaic, Gregg S. Higashi, Viola Vogel

Symposium FF : Materials and Basic Research Needs for Solar Energy Conversion

2006-04-18   Show All Abstracts

Symposium Organizers

Paul Alivisatos University of California-Berkeley
Nathan S. Lewis California Institute of Technology
Arthur J. Nozik National Renewable Energy Laboratory
Michael R. Wasielewski Northwestern University
FF1: Organic Photovoltaics
Session Chairs
Garry Rumbles
Tuesday PM, April 18, 2006
Room 2008 (Moscone West)

9:30 AM - **FF1.1
Solar Cells and Light-emitting Field effect Transistors: Recent Progress in Santa Barbara.

Alan Heeger 1
1 Physics, UCSB, Santa Barbara, California, United States

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10:00 AM - **FF1.2
A Self-Consistent Model for Exciton Formation, Doping, and Carrier Transport in Excitonic Semiconductors.

Brian Gregg 1 , Si_Guang Chen 1 , Sophie Gledhill 1 , Brian Scott 1 , Pingrong Yu 1
1 , NREL, Golden, Colorado, United States

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10:30 AM - **FF1.3
Nanostructured Hybrid Organic-inorganic Photovoltaic Cells.

Michael McGehee 1
1 Materials Science and Engineering, Stanford University, Stanford, California, United States

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11:00 AM - *
Break

11:30 AM - FF1.4
Photophysical Studies of CuPc-acceptor Heterostructures and Steps Towards a Hybrid Carbon Nanotube-polymer Solar Cell.

Thomas Kempa 1 , James Durrant 1 , Tim Jones 1
1 , Imperial College London, London United Kingdom

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11:45 AM - FF1.5
Structure Control in ZnO/Polymer Composite Solar Cells.

Thomas Sounart 1 , Erik Spoerke 1 , Dana Olson 2 , David Scrymgeour 1 , Nolanne Chang 1 , Terry Guilinger 1 , Sean Shaheen 2 , Julia Hsu 1 , David Ginley 2 , James Voigt 1
1 , Sandia National Laboratories, Albuquerque, New Mexico, United States, 2 , National Renewable Energy Laboratory, Golden, Colorado, United States

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12:00 PM - FF1.6
Transparent Carbon Nanotube Sheets in Organic Solar Cells

Anvar Zakhidov 1 2 , Ross Ulbricht 1 , Sergey Lee 1 2 , Mei Zhang 2 , Ray Baughman 2
1 Physics, University of Texas at Dallas, Richardson, Texas, United States, 2 , NanoTech Institute, UTD, Richardson, TX 75083, Texas, United States

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12:15 PM - FF1.7
Polymer Photovoltaic Optimizations at Molecular Structure and Orbital Levels

Sam-Shajing Sun 1 , Cheng Zhang 1 , Soobum Choi 1 , James Haliburton 1 , Taina Cleveland 1 , Abram Ledbetter 1 , Carl Bonner 1
1 Center for Materials Research, Norfolk State University, Norfolk, Virginia, United States

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12:30 PM - FF1.8
Characterization of Materials and Multilayer Structures of Organic Solar Cells by Spectroscopic Ellipsometry.

Christophe Defranoux 1 , Jean-Jacques Simon 2 , Florent Monestier 2 , Philippe Torchio 2 , Ludovic Escoubas 2 , Jean Michel Nunzi 3 , Laurent Kitzinger 1
1 Application, SOPRA, BOIS COLOMBES France, 2 C.O.M., Institut Fresnel, MARSEILLE France, 3 Laboratoire POMA, Universite d'Angers, Angers France

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FF2: Natural and Artificial Photosynthesis
Session Chairs
Michael Wasielewski
Tuesday PM, April 18, 2006
Room 2008 (Moscone West)

2:30 PM - **FF2.1
Design Principles and Regulation of Natural Photosynthetic Light Harvesting.

Graham Fleming 2 1 , Krishna Niyogi 3
2 Directorate, Lawrence Berkeley National Laboratory, Berkeley, California, United States, 1 Chemistry, University of California, Berkeley, Berkeley, California, United States, 3 Plant and Microbial Biology, University of California, Berkeley, Berkeley, California, United States

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3:00 PM - **FF2.2
Oxygen Evolving Complex of Photosystem II

Gary Brudvig 1
1 Department of Chemistry, Yale University, New Haven, Connecticut, United States

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3:30 PM - **FF2.3
Protein Design for Stabilization of Electron and Proton Transfer Reactions.

Marilyn Gunner 1
1 Physics, City College of New York, New York, New York, United States

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4:00 PM - *
Break

4:30 PM - **FF2.4
Chemical Approaches to Artificial Photosynthesis

Thomas Meyer 1
1 Chemistry, University of North Carolina, Chapel Hill, North Carolina, United States

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5:00 PM - **FF2.5
Concatenation of Antenna Function and Photoinduced Electron Transfer in Artificial Photosynthetic Molecules.

Devens Gust 1 , Thomas Moore 1 , Ana Moore 1
1 Chemistry and Biochemistry, Arizona State University, Tempe, Arizona, United States

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5:30 PM - *FF2.6
Electron Transfer in Bio-inspired Supramolecular Donor-Acceptor Arrays.

Michael Wasielewski 1
1 Dept. of Chemistry, Northwestern University, Evanston, Illinois, United States

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2006-04-19   Show All Abstracts

Symposium Organizers

Paul Alivisatos University of California-Berkeley
Nathan S. Lewis California Institute of Technology
Arthur J. Nozik National Renewable Energy Laboratory
Michael R. Wasielewski Northwestern University
FF3: Nanostructures and Quantum Dots for Solar Cells I
Session Chairs
A. Paul Alivisatos
Wednesday AM, April 19, 2006
Room 2008 (Moscone West)

9:30 AM - **FF3.1
Coherent Superposition of Multi-Exciton Complexes in Semiconductor Nanocrystals.

Alexander Efros 1 , Andrew Shabaev 1
1 Center for Computational Material Science, Naval Reserach Laboratory, Washington DC, District of Columbia, United States

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10:00 AM - FF3.2
Highly-Efficient Multiple Exciton Generation in Semiconductor Quantum Dots, and Implications for Solar Energy Conversion

Randy Ellingson 1 , Matthew Beard 1 , Justin Johnson 1 , James Murphy 1 2 , Pingrong Yu 1 , Olga Micic 1 , Andrew Shabaev 3 4 , Alexander Efros 3 , Arthur Nozik 1 2
1 Center for Basic Sciences, National Renewable Energy Laboratory, Golden, Colorado, United States, 2 Chemistry and Biochemistry, University of Colorado, Boulder, Colorado, United States, 3 , Naval Research Laboratory, Washington, District of Columbia, United States, 4 School of Computational Sciences, George Mason University, Fairfax, Virginia, United States

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10:15 AM - FF3.3
Coherent Dynamics of Multiple Exciton Generation in Colloidal PbSe Quantum Dots.

Justin Johnson 1 , Matt Beard 1 , James Murphy 1 , Randy Ellingson 1 , Arthur Nozik 1
1 , National Renewable Energy Lab, Golden, Colorado, United States

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10:30 AM - FF3.4
Colloidal Lead Salt Nanocrystals For Photovoltaics: Synthesis And Characterization.

James Murphy 1 3 , Matthew Beard 1 , Andrew Norman 1 , S. Ahrenkiel 1 , Justin Johnson 1 , Pingrong Yu 1 , Olga Micic 1 , Randy Ellingson 1 , Arthur Nozik 1 3
1 Center For Basic Science, National Renewable Energy Laboratory, Golden, Colorado, United States, 3 Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, Colorado, United States

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10:45 AM - *
Break

11:15 AM - **FF3.5
Quantum Efficiency of 700% in Conversion of Light Quanta into Charge Carriers Using Semiconductor Nanocrystals.

Victor Klimov 1
1 Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States

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11:45 AM - FF3.6
Mechanism for High-Efficiency Carrier Multiplication in Semiconductor Nanocrystals: Direct Photo-generation of Multiexcitons via Virtual Single-Exciton States

Richard Schaller 1 , Vladimir Agranovich 2 3 , Milan Sykora 1 , Jeffrey Pietryga 1 , Victor Klimov 1
1 Chemistry Division, Los Alamos National Lab, Los Alamos, New Mexico, United States, 2 Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow Russian Federation, 3 NanoTech Institute, University of Texas at Dallas, Richardson, Texas, United States

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12:00 PM - FF3.7
Photovoltaic Response of Solar Cells Based on Lead Selenide Quantum Dots and Conducting Polymers: Toward Carrier Multiplication Enhancement

Xiaomei Jiang 1 , Sergey Lee 1 , Anvar Zakhidov 1 , Richard Schaller 2 , Jeffrey Pietryga 2 , Victor Klimov 2
1 Nanotech Institute, University of Texas at Dallas, Richardson, Texas, United States, 2 Chemistry Division, Los Alamos National Lab, Los Alamos, New Mexico, United States

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12:15 PM - **FF3.8
Modeling of Nanomaterials Using Hybrid Density Functional Theory.

Richard Friesner 1 , Eric Knoll 1
1 Chemistry, Columbia University, New York, New York, United States

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12:45 PM - FF3.9
Ultrafast Spectroscopy of Single Wall Carbon Nanotubes Substitutionally Doped and Coupled to Molecules and Quantum Dots.

Kelly Knutsen 1 , Jeff Blackburn 1 , Chaiwat Engtrakul 1 , Matthew Beard 1 , Timothy McDonald 1 , Marcus Jones 1 , Garry Rumbles 1 , Randy Ellingson 1 , Michael Heben 1
1 , National Renewable Energy Lab, Golden, Colorado, United States

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FF4: Report on DOE Office of Science/Office of Basic Energy Sciences Workshop on Basic Research Needs Solar Energy Utilization
Session Chairs
Harriet Kung
Nathan Lewis
Wednesday PM, April 19, 2006
Room 2008 (Moscone West)

2:30 PM - *FF4.1
Report on U.S. DOE Basic Energy Sciences Workshop on "Basic Research Needs for Solar Energy Utilization."

Paul Alivisatos 2 , Nathan Lewis 4 , Arthur J. Nozik 1 , Michael Wasielewski 3
2 Department of Chemistry, University of California, Berkeley, California, United States, 4 Department of Chemistry, California Institute of Technology, Pasadena, California, United States, 1 , National Renewable Energy Laboratory, Golden, CO, Colorado, United States, 3 Department of Chemistry, Northwestern University, Evanston, Illinois, United States

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FF5: Nanostructures and Quantum Dots for Solar Cells II
Session Chairs
Harry Atwater
Wednesday PM, April 19, 2006
Room 2008 (Moscone West)

3:15 PM - **FF5.1
Nanostructured Silicon Quantum Dot Tandem and Hot-Carrier Solar Cells.

Martin Green 1
1 , UNSW, Sydney, Queensland, Australia

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3:45 PM - FF5.2
Dual Nanocrystal Solar Cells.

Ilan Gur 1 2 , Neil Fromer 2 , Michael Geier 1 , A Alivisatos 2 3 1
1 Materials Science and Engineering, University of California - Berkeley, Berkeley, California, United States, 2 Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, United States, 3 Chemistry, University of California - Berkeley, Berkeley, California, United States

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4:00 PM - FF5.3
Photoconductivity in Arrays of Semiconductor Nanoparticles.

Matt Beard 1 , James Murphy 1 2 , Kelly Knutsen 1 , Randy Ellingson 1 , Arthur Nozik 1 2
1 Basic Sciences, NREL, Golden, Colorado, United States, 2 Chemistry, University of Colorado, Boulder, Colorado, United States

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4:15 PM - *
Break

4:45 PM - FF5.4
MOCVD Growth and Characterization of InGaAs/GaAsP Strain-Balanced Quantum Dot Superlattices for Third-Generation Solar Cells.

Andrew Norman 1 , Mark Hanna 1 , Pat Dippo 1 , Scott Ward 1 , Mowafak Al-Jassim 1
1 , National Renewable Energy Laboratory, Golden, Colorado, United States

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5:00 PM - FF5.5
Criticality of Electron and Hole Escape Sequence in Nano-Structured Photovoltaic Devices.

A. Alemu 1 , J.A.H. Coaquira 1 , Alex Freundlich 1 2
1 Texas Center for Advanced Materials, University of Houston, Houston, Texas, United States, 2 Physics Department, University of Houston, Houston, Texas, United States

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5:15 PM - FF5.6
Carrier Injection From PbSe Quantum Dots to Organic Semiconductors and Mesoporous TiO2

Joseph Luther 1 2 , Kathrine Gerth 1 3 , Jorge Piris 1 , James Murphy 1 3 , Qing Song 1 , Donald Selmarten 1 , Mark Hanna 1 , Reuben Collins 2 , Sean Shaheen 1 , Arthur Nozik 1 3
1 , NREL, Golden , Colorado, United States, 2 Applied Physics, Colorado School of Mines, Golden, Colorado, United States, 3 Chemistry, University of Colorado, Boulder, Colorado, United States

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5:30 PM - FF5.7
Nanowire Dye-sensitized and Polymer-Inorganic Solar Cells; Improving Charge Transport with a 1-D Geometry

Lori Greene 1 , Matt Law 1 , Peidong Yang 1 2
1 Department of Chemistry, UC Berkeley, Berkeley, California, United States, 2 Materials Sciences Division, Lawerence Berkeley National Laboratory, Berkeley, California, United States

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5:45 PM - FF5.8
Vertically Assembled Quantum-Wire p-i-n Solar Cells: Realistic Performance Predictions Beyond Detailed Energy Balance Calculations.

Alex Freundlich 1 2 , Andrea Feltrin 1 , Andenet Alemu 1
1 Texas Center for Advanced Materials, University of Houston, Houston, Texas, United States, 2 Physics Department, University of Houston, Houston, Texas, United States

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FF6: Poster Session
Session Chairs
Arthur Nozik
Thursday AM, April 20, 2006
Salons 8-15 (Marriott)

9:00 PM - FF6.1
Optical Properties of Crystalline Silicon Surfaces Textured by Spontaneous Dry Etching with Chlorine Trifluoride Gas.

Yoji Saito 1 2 , Hidemasa Yamazaki 2 , Takeshi Kosuge 2
1 Electrical and Mechanical Eng., Seikei University, Musashino, Tokyo, Japan, 2 Electrical Eng. and Electronics, Seikei University, Musashino, Tokyo, Japan

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9:00 PM - FF6.10
Non-contact Metrology for Electrical Characterization of Photo-Voltaic Materials

Michael Current 1 , Vladimir Faifer 1 , Tim Wong 1 , Tan Nguyen 1
1 , Frontier Semiconductor, San Jose, California, United States

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9:00 PM - FF6.11
Metalorganic Vapor Phase Epitaxy of InGaAsN Using Dilute Nitrogen Trifluoride and Tertiarybutylarsine.

Siu Cheng 1 , Robyn Woo 1 , Robert Hicks 1
1 Chemical Engineering, UCLA, Los Angeles, California, United States

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9:00 PM - FF6.12
Carbon Nanotube Sheets as Counter Electrodes for Gratzel Solar Cells

Hasan Shodiev 1 , Ali Aliev 1 , Mei Zhang 1 , Sergey Lee 1 , Ray Baughman 1 , Anvar Zakhidov 1
1 Nanotech Institute, The Univ. of Texas at Dallas, Richardson, Texas, United States

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9:00 PM - FF6.13
Water Splitting to Hydrogen by RuO2-dispersed AInGeO4(A=Li,Na ) Photocatalyst with d10-d10 Configuration

Haruhiko Kadowaki 1 , Junya Sato 1 , Hisayoshi Kobayashi 2 , Nobuo Saito 1 , Hiroshi Nishiyama 1 , Yasunobu Inoue 1
1 Department of Chemistry, Nagaoka University of Technology, Nagaoka Japan, 2 Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Kyoto Japan

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9:00 PM - FF6.14
Photocatalysis for Water splitting by RuO2 -Loaded MInO3 (M=Sc,Y,La) with d10 Configuration.

Naoki Arai 1 , Hisayoshi Kobayashi 2 , Nobuo Saito 1 , Hiroshi Nishiyama 1 , Kazunori Sato 1 , Yasunobu Inoue 1
1 Department of Chemistry, Nagaoka University of Technology, nagaoka Japan, 2 Department of Chemistry and Materials Technology , Kyoto Institute of Technology, kyoto Japan

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9:00 PM - FF6.15
Enhancing Energy Conversion Efficiency of Dye-Sensitized Solar Cells by Employing Nanoporous MgO-Coated TiO2 Nanoparticles

Hyun Suk Jung 1 , Jung-Kun Lee 1 , Michael Nastasi 1 , Sang-wook Lee 2 , Jin-Young Kim 2 , Kug Sun Hong 2 , Hyunho Shin 3
1 , Los Alamos National Laboratory, Los Alamos, New Mexico, United States, 2 , Seoul National University, Seoul Korea (the Republic of), 3 , Kangnung National University, Kangnung Korea (the Republic of)

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9:00 PM - FF6.16
Hybrid Grätzel Solid Solar Cells Modified by Atomic Layer Deposition

Tingying Zeng 1 , Cassie Norris 1
1 Chemistry, Western Kentucky University, Bowling Green, Kentucky, United States

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9:00 PM - FF6.17
Modeling of the Optical Properties of Capped Porous Silicon in Reflecting Multilayer Stacks.

Ahmed Abouelsaood 1 , Moustafa Ghannam 1 , Izabela Kuzma Filipek 2 , Filip Duerinckx 2 , Jef Poortmans 2
1 Physics, American University, Cairo Egypt, 2 , IMEC, Leuven, ., Belgium

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9:00 PM - FF6.18
Surface Molecularly Imprinted TiO2 Nanoparticle for Photoreduction of Viologen

Takashi Sagawa 1 , Mayu Kudo 1 , Joachim Steinke 2 , Takashi Morii 1 , Katsutoshi Ohkubo 1
1 Institute of Advanced Energy, Kyoto University, Uji, Kyoto, Japan, 2 Department of Chemistry, Imperial College London, London United Kingdom

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9:00 PM - FF6.2
Photo-Catalytic Decomposition of Volatile Organic Compounds with Mesoporous Silica.

Masanari Takahashi 1 , Yuichi Hayashi 2 , Gohei Yoshida 2 , Seiji Watase 1
1 , Osaka Municipal Technical Research Institute, Osaka Japan, 2 , Honjyo Chemical Corporation, Neyagawa Japan

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9:00 PM - FF6.4
Poly(methylphenylsilane)(PMPS)-SWNT Photoelectric Composites: Covalent Graft and Non-covalent Wrapping.

Zhang Zhenghua 1 2 , Xu Weijian 1 2 , Lu Yanbing 1 , Xiong Yuanqin 1 , Yu Jiang 1 2
1 , Hunan Universiity, Changsha China, 2 , State Key Laboratory of Chemo/Biosensing and Chemometrics, Changsha China

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9:00 PM - FF6.5
Study of PV Module Methylmetacrylate Encapsulation

Sergey Karabanov 1 , Yuri Kukhmistrov 1
1 , Ryazan Metal Ceramics Instrumentation Plant JSC, Ryazan Russian Federation

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9:00 PM - FF6.6
AFM Studies on the Morphological Evolution of Chemically Deposited In2S3 Thin Films as a Function of Deposition Time.

Merida Sotelo-Lerma 1 , Omar A. Castelo-Gonzalez 1 , Francisco Javier Espinoza-Beltran 2 , Rafael Ramirez-Bon 2
1 Departamento de Investigacion en Polimeros y Materiales, Universidad de Sonora, Hermosillo, Sonora, Mexico, 2 Centro de Investigacion y Estudios Avanzados del IPN. Unidad Queretaro, CINVESTAV, Queretaro, Queretaro, Mexico

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9:00 PM - FF6.7
Non-Reflecting Silicon Surfaces for Application in Solar Cells

Svetoslav Koynov 1 , Martin Brandt 1 , Martin Stutzmann 1
1 E 25, Walter Schotky Institut - Techncal University Munchen , Garching b. Munchen Germany

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9:00 PM - FF6.8
Nano-Carbon Counter Electrodes for Dye Sensitized Solar Cells.

Wonjae Lee 1 , Easwaramoorthi Ramasamy 1 2 , Dongyoon Lee 1 , Jaesung Song 1
1 Electric & Magnetic device research group, Korea Electrotechnology Research Institute, Changwon Korea (the Republic of), 2 , University of Science and Technology, Daejeon Korea (the Republic of)

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9:00 PM - FF6.9
Improved Performance of the Nanoporous TiO2 Electrode Sensitized with a Ruthenium Complex Using Thiophene Polymer

Seung Jae Roh 1 , KyungHee Hyung 1 , Kuk Hee Park 1 , Sung-Hwan Han 1
1 Chemistry, Hanyang University, Seoul Korea (the Republic of)

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2006-04-20   Show All Abstracts

Symposium Organizers

Paul Alivisatos University of California-Berkeley
Nathan S. Lewis California Institute of Technology
Arthur J. Nozik National Renewable Energy Laboratory
Michael R. Wasielewski Northwestern University
FF7: Thermoelectrics and Thermophotovoltaics
Session Chairs
Jeff Tsao
Thursday AM, April 20, 2006
Room 2008 (Moscone West)

9:00 AM - FF7.1
Edge Illuminated Vertical Multi-Junction Thermo-photovoltaic Cells Based on GaSb and GaxIn1-xSb

Sujatha Sridaran 1 2 , Alex Tran 2 , Partha Dutta 1 2 , Omkaram Nalamasu 2
1 Electrical, Computer and System Engineering, Rensselaer Polytechnic Institute, Troy, New York, United States, 2 Center for Integrated Electronics, Rensselaer Polytechnic Institute, Troy, New York, United States

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9:15 AM - FF7.2
Triple and Quadruple Junctions Thermophotovoltaic Devices Lattice Matched to InP.

Lekhnath Bhusal 1 2 , Alex Freundlich 1 2
1 Texas Center for Advanced Materials, University of Houston, Houston, Texas, United States, 2 Physics Department, University of Houston, Houston, Texas, United States

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9:30 AM - FF7.3
Overview of Thermoelectric Materials Research.

Terry Tritt 1
1 Physics & Astronomy, Clemson University, Clemson, South Carolina, United States

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9:45 AM - **FF7.4
Bismuth Nanowire Thermoelectrics.

Jim Heath 1 , Akram Boukai 1 , Ke Xu 1
1 Chemistry, Caltech, Pasadena, California, United States

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10:15 AM - FF7.5
Can Doping Improve the Thermoelectric Performance of β-Zn4Sb3?

Birgitte Pedersen 1 2 , Eiji Nishibori 3 , Henrik Birkedal 1 2 , Anders Bentien 1 2 , Makato Sakata 3 , Matts Nygren 4 , Poul Frederiksen 5 , Bo Iversen 1 2
1 Department of Chemistry, University of Aarhus, Aarhus Denmark, 2 Interdisciplinary Nanoscience Center, University of Aarhus, Aarhus Denmark, 3 Department of Applied Physics, Nagoya University, Nagoya Japan, 4 Department of Chemistry, Stockholm University, Stockholm Sweden, 5 , Grundfos A/S, Bjerringbro Denmark

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10:30 AM - FF7
BREAK

FF8: Inorganic Photovoltaics
Session Chairs
David Ginley
Martin Green
Thursday PM, April 20, 2006
Room 2008 (Moscone West)

10:45 AM - **FF8.1
Electronic Structure of PbSe Quantum Dots and Mechanisms of Carrier Multiplication .

Alberto Franceschetti 1 , Alex Zunger 1
1 , NREL, golden, Colorado, United States

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11:15 AM - **FF8.2
Design Approaches and Materials Processes for Ultrahigh Efficiency Lattice Mismatched Multijunction Solar Cells

Harry Atwater 1
1 Applied Physics, California Institute of Technology, Pasadena, California, United States

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11:45 AM - FF8.3
p-n Junction Heterostructure Device Physics Modeling of Four Junction Solar Cell Efficiency

Melissa Griggs 1 , Brendan Kayes 1 , Harry Atwater 1
1 , California Institute of Technology, Pasadena, California, United States

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12:00 PM - FF8.4
GaNxAs1-x-yPy Quaternary Alloys: a III-V Multiband System for High Efficiency Intermediate Band Solar Cells

KinMan Yu 1 , Wladek Walukiewicz 1 , Joel Ager 1 , David Bour 3 , Rouin Farshchi 2 1 , Oscar Dubon 2 1 , Ian Sharp 2 1 , Eugene Haller 2 1
1 Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, United States, 3 , Agilent Laboratories, Palo Alto, California, United States, 2 Department of Materials Science and Engineering, University of California, Berkeley, California, United States

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12:15 PM - FF8.5
Direct-Bond Interconnected Multijunction GaAs/InGaAs Solar Cell.

Katsuaki Tanabe 1 , Daniel Aiken 2 , Mark Wanlass 3 , Anna Fontcuberta i Morral 1 , Harry Atwater 1
1 Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, California, United States, 2 , Emcore Photovoltaics, Albuquerque, New Mexico, United States, 3 , National Renewable Energy Laboratory, Golden, Colorado, United States

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12:45 PM - FF8.7
Hole Photocarrier Drift Mobility Measurements in CuI0.7Ga0.3Se2 Solar Cells.

Steluta Dinca 1 , Eric Schiff 1 , Brian Egaas 2 , David Young 2 , Rommel Noufi 2
1 Dept.of Physics, Syracuse University, Syracuse, New York, United States, 2 , National Renewable Energy Laboratory, Golden, Colorado, United States

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FF9: Dye-Sensitized Solar Cells
Session Chairs
Brian Gregg
Eric Schiff
Thursday PM, April 20, 2006
Room 2008 (Moscone West)

2:30 PM - **FF9.1
Mesoscopic Injection Solar Cells.

Michael Graetzel 1
1 , ecole polytechnique de lausanne, lausanne Switzerland

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3:00 PM - **FF9.2
Characterization and Modelling of Transport and Interfacial Transfer of Electrons in Dye-Sensitized Solar Cells.

Laurence Peter 1 , Halina Dunn 1 , Joanna Harries 1 , Wendy Howie 1 , James Jennings 1 , Killian Lobato 1 , Diego Martinez 2 , Oanh Nguyen 1 , Alison Walker 2
1 Department of Chemistry, University of Bath, Bath United Kingdom, 2 Department of Physics, University of Bath, Bath United Kingdom

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3:30 PM - FF9.3
Photocarrier Trapping in Dye-sensitized Solar Cells: Evidence Against Exponential Conduction Bandtail Trapping.

Nikos Kopidakis 1 , Kurt Benkstein 1 , Jao van de Lagemaat 1 , Arthur Frank 1 , Quan Yuan 2 , Eric Schiff 2
1 , National Renewable Energy Laboratory, Golden, Colorado, United States, 2 Physics, Syracuse University, Syracuse, New York, United States

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3:45 PM - FF9.4
Transparent and Conducting Carbon Nanotube Films for the Dye-sensitized Solar Cell

Jessika Trancik 1 , Adam Hurst 2 , Bhupesh Chandra 2 , Yuhao Sun 3 , James Hone 2 , Scott Calabrese Barton 3
1 Earth Institute, Columbia University, New York, New York, United States, 2 Mechanical Engineering, Columbia University, New York, New York, United States, 3 Chemical Engineering, Columbia University, New York, New York, United States

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4:00 PM - FF9
BREAK

4:45 PM - FF9.6
Use of Highly-Ordered TiO2 Nanotube-Arrays in Dye-Sensitized Solar Cells.

Gopal Mor 1 , Karthik Shankar 1 , Maggie Paulose 1 , Oomman Varghese 1 , Craig Grimes 1
1 Electrical Engineering, Penn State University, University Park, Pennsylvania, United States

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5:00 PM - FF9.7
Numerical Simulation of Light Propagation Through Highly-Ordered Titania Nanotube Arrays: Dimension Optimization for Improved Photoproperties.

Keat Ong 1 , Oomman Varghese 1 , Gopal Mor 1 , Craig Grimes 1
1 Electrical Engineering, Penn State University, University Park, Pennsylvania, United States

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2006-04-21   Show All Abstracts

Symposium Organizers

Paul Alivisatos University of California-Berkeley
Nathan S. Lewis California Institute of Technology
Arthur J. Nozik National Renewable Energy Laboratory
Michael R. Wasielewski Northwestern University
FF10: Photoelectrolysis and Photocatalysis
Session Chairs
Mark Spitler
Friday AM, April 21, 2006
Room 2008 (Moscone West)

9:15 AM - FF10.2
A Novel Route to Synthesize Rutile TiO2 Nanorods with High Photocatalytic Activity.

Edson Leite 1 , Rafael Libanori 1 , Cristiane Vila 1 , Caue Ribeiro 1 , Paulo Bueno 2 , Elson Longo 2
1 Chemistry, Universidade Federal Sao Carlos, Sao Carlos, SP, Brazil, 2 Chemisrty, Universidade Estadual Paulista, Araraquara, SP, Brazil

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9:30 AM - **FF10.3
Molecular Chemistry of Consequence to Renewable Energy

Daniel Nocera 1
1 Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States

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10:00 AM - **FF10.4
A Combinatorial Approach to the Discovery of Metal Oxides that Can Photoelectrolyze Water.

Bruce Parkinson 1 , Micheal Woodhouse 1 , Michelle Romanishan 1
1 Department of Chemistry, Colorado State University, Fort Collins, Colorado, United States

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10:45 AM - FF10.6
Photocatalytic Water Splitting on RuO2-dispersed p-type GaN with d10- Electronic Configuration.

nobuo saito 1 , Naoki Arai 1 , Hiroshi Nishiyama 1 , Hisayoshi Kobayashi 2 , Kazunari Domen 3 , Yasunobu Inoue 1
1 Department of Chemistry, Nagaoka University of Technology, Nagaoka Japan, 2 Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Kyoto Japan, 3 Department of Chemical System Engineering, School of Engnering, The University of Tokyo, Tokyo Japan

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11:00 AM - FF10.7
Photoelectrochemical Studies of Semiconducting Potassium Tantalate Photoanodes for Hydrogen Production via Water Dissociation.

Irene Paulauskas 1 , Jordan Katz 3 , Lynn Boatner 2 , Nathan Lewis 3 , Raymond Buchanan 1
1 Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee, United States, 3 Chemistry, California Institute of Technology, Pasadena, California, United States, 2 Condensed Matter Sciences Division, Oak Ridge National Laboratory, Knoxville, Tennessee, United States

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11:15 AM - FF10.8
Understanding the Microstructural Parameters Responsible the High Performance of Novel Sol-Gel Mesoporous Tungsten Trioxide Films for the Photoelectrocatalytic Splitting of Water

Vittorio Luca 1 , Bin Yang 1
1 Institute of Materials and Engineering Sciences, ANSTO, Lucas Heights, New South Wales, Australia

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FF11: Photovoltaic and Nano Materials I
Session Chairs
George Crabtree
Friday PM, April 21, 2006
Room 2008 (Moscone West)

11:30 AM - **FF11.1
Optical Studies of Semiconductor Nanoparticles and Nanotubes

Tony Heinz 1
1 Depts. of Physics and Electrical Engineering, Columbia University, New York, New York, United States

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12:00 PM - FF11.2
Characterization of Cubic Mesoporous TiO2 Thin Films by Spectroscopic Ellipsometric Porosimetry.

Adrien Darragon 1 , Jean Philippe Piel 1 , Yann Turcant 1 , Olivier Condat 1 , Patrice Heinrich 1
1 , SOPRA, Bois-colombes France

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12:15 PM - FF11.3
GaAs Nanocrystal Surface Chemistry.

Matthew Traub 1 , Nathan Lewis 1
1 Chemistry, Caltech, Pasadena, California, United States

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12:30 PM - FF11.4
Structure and Optical Property of Modified Titanate Nanotubes

Yuanyuan Jia 1 , Alfred Kleinhammes 1 , Harsha Kulkarni 1 , Yue Wu 1
1 , University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States

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FF12: Photovoltaic and Nano Materials II
Session Chairs
Randy Ellingson
Friday PM, April 21, 2006
Room 2008 (Moscone West)

2:30 PM - FF12.1
High Yield Synthesis of Boron-Doped Single-Walled Nanotubes by Pulsed Laser Vaporization and Their Optical and Vibrational Properties

Jeff Blackburn 1 , Timothy McDonald 1 , Thomas Gennett 2 1 , Yanfa Yan 1 , Kim Jones 1 , Chaiwat Engtrakul 1 , Kelly Knutsen 1 , Randy Ellingson 1 , Anne Dillon 1 , Michael Heben 1
1 , National Renewable Energy Laboratory, Golden, Colorado, United States, 2 , Rochester Institute of Technology, Rochester, New York, United States

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2:45 PM - FF12.2
Novel Light Absorbers for Thin Film Photovoltaics Containing only Abundant and Inexpensive Elements.

Joel Haber 1 , Nathan Gerein 1 , Timothy Hatchard 1 , Matthieu Versavel 1
1 Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada

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3:00 PM - FF12.3
Effects of Mg-doping on the Electrical and Optical Properties of InN.

Rebecca Jones 1 2 , Kin Yu 1 , Sonny Li 1 2 , Wladek Walukiewicz 1 , Joel Ager 1 , Eugene Haller 1 2 , Hai Lu 3 , William Schaff 3
1 Materials Sciences, Lawrence Berkeley National Lab, Berkeley, California, United States, 2 Materials Science and Engineering, UC-Berkeley, Berkeley, California, United States, 3 , Cornell University, Ithaca, New York, United States

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3:15 PM - FF12.4
Synthesis and Characterization of Bulk and Thin Film Silicon and Germanium Based Clathrate Materials.

Matt Beekman 1 , R. Hyde 1 , H. Nagaraja 1 , P. Mukherjee 1 , S. Witanachchi 1 , G. Nolas 1
1 Department of Physics, University of South Florida, Tampa, Florida, United States

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3:30 PM - FF12.5
Epitaxial Growth of Highly Mismatched III-V Compound Semiconductors using Liquid Phase Epitaxy

Anika Kumar 1 , Ashutosh Dighe 2 , Partha Dutta 1
1 ECSE, Rensselaer Polytechnic Institute, Troy , New York, United States, 2 , Micron Technology, Inc. , Boise, Idaho, United States

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3:45 PM - FF12.6
Optical Properties of Nanoporous Semiconductor Metamaterials

Iris Nandhakumar 1 , Jeremy Baumberg 1 , David Smith 1 , Matthew Markham 1 , Xiahong Li 1 , Timothy Gabriel 1 , George Attard 1
1 School of Chemistry, University of Southampton, Southampton United Kingdom

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4:00 PM - *
Break

4:30 PM - FF12.7
Properties of Aluminum Doped ZnO Grown by Atmospheric Plasma Enhanced Chemical Vapor Deposition

Michael Barankin 1 , Robert Hicks 1
1 Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, California, United States

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4:45 PM - FF12.8
Mayer-Neldel Rule and the Influence of Entropy on Capture Cross-section Determination in Cu(In,Ga)Se2.

Jehad AbuShama 1 , Steve Johnston 2 , Richard Crandell 2 , Rommel Noufi 2
1 , DayStar Technologies, HalfMoon, New York, United States, 2 , NREL, Golden, Colorado, United States

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5:00 PM - FF12.9
High Resistivity and Transparency GaSb Su