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Symposium KK: Light Management in Photovoltaic Devices--Theory and Practice

Symposium KK: Light Management in Photovoltaic Devices--Theory and Practice Image

SYMPOSIUM KK

Light Management in Photovoltaic Devices---Theory and Practice
March 24 - 27, 2008
Chairs
Christophe Ballif     University of Neuchatel
Randy Ellingson     National Renewable Energy Laboratory
Marko Topic     University of Ljubljana
Miroslav (Miro) Zeman     Delft University of Technology

Symposium Support
Kaneka Corp
Nuon Helianthos
OC Oerlikon Balzers Ltd


* Invited paper

TUTORIAL
Optical Modeling and Simulation of Thin-Film Photovoltaic Devices
Monday, March 24, 2008
Tentative Time: 1:30 PM - 5:00 PM
Room 2018 (Moscone West)


SESSION KK1: Modelling and Characterization
Chair: Christophe Ballif
Tuesday Morning, March 25, 2008
Room 2018 (Moscone West)

8:30 AM *KK1.1
Optical Properties of Ag/ZnO Back-reflectors for Thin Film Si Photovoltaics. Robert W Collins1, Deepak Sainju1, Lila Raj Dahal1, Jian Li1, Jason A. Stoke1, N. J. Podraza1,2 and Xunming Deng1; 1Physics and Astronomy, University of Toledo, Toledo, Ohio; 2Materials Research Laboratory, Penn State University, State College, Pennsylvania.

9:00 AM KK1.2
Accurate Determination of Dielectric Functions of Thin Films and Interfaces in Photovoltaic Devices: Critical Issues in Optical Modeling. Jian Li1, Robert W Collins1, Jason A. Stoke1, Lila Raj Dahal1, Deepak Sainju1, Jie Chen1, Anuja Parikh1 and N. J. Podraza1,2; 1Physics and Astronomy, University of Toledo, Toledo, Ohio; 2Material Research Laboratory, Penn State University, State College Pensilvania, Pennsylvania.

9:15 AM *KK1.3
Light Trapping by Means of Diffraction Gratings for Silicon Solar Cells. Rudolf H. Morf, Condensed Matter Theory, Paul Scherrer Institute, Villigen, Switzerland.

9:45 AM KK1.4
Quantification of Light Trapping Using a Reciprocity Between Electroluminescent Emission and Photovoltaic Action in a Solar Cell. Thomas Kirchartz1, Anke Helbig2 and Uwe Rau1; 1IEF5-Photovoltaik, Forschungszentrum Juelich, Juelich, Germany; 2Institut für Physikalische Elektronik, Universität Stuttgart, Stuttgart, Baden-Württemberg, Germany.

10:00 AM BREAK

SESSION KK2: Transparent Conducting Oxides -- Applications
Chair: Marko Topic
Tuesday Morning, March 25, 2008
Room 2018 (Moscone West)

10:30 AM *KK2.1
Requirements for TCO Substrate in Si-based Thin Film Solar Cells -Toward Tandem. Takuji Oyama, Mika Kambe, Naoki Taneda, Kunio Masumo and Kazuo Sato; Research center, Asahi Glass Co., Ltd., Yokohama, Japan.

11:00 AM KK2.2
On the Control of Film Growth of PECVD ZnO:Al for Thin Photovoltaics. M. Creatore1, I. Volintiru1, M. Ponomarev1, P. Poodt2 and Richard VandeSanden1; 1Applied Physics, Eindhoven university of Technology, Eindhoven, Netherlands; 2Science and Industry, TNO, Eindhoven, Netherlands.

11:15 AM *KK2.3
Experimental Limits of Light Capture in Thin Film Silicon Devices. Ales Poruba1,2, Milan Vanecek1, Jakub Holovsky1, Petr Klapetek3 and Miloslav Ohlidal4; 1Department of Optical Crystals, Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic; 2Solartec s.r.o., Roznov pod Radhostem, Czech Republic; 3Czech Metrology Institute, Brno, Czech Republic; 4Institute of Physical Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic.

11:45 AM KK2.4
Record Conductivity for P-Type Transparent Conductors in Polycrystalline Thin Films of a Sulfide-Fluoride. Jesse A. Frantz1, Jasbinder S. Sanghera2, Syed B. Qadri2 and Ishwar D. Aggarwal2; 1SFA, Inc., Crofton, Maryland; 2U.S. Naval Research Laboratory, Washington, District of Columbia.

SESSION KK3: Plasmon Effects
Chair: Franz-Josef Haug
Tuesday Afternoon, March 25, 2008
Room 2018 (Moscone West)

1:30 PM *KK3.1
Increasing the Efficiency of Solar Cells with Surface Plasmons. Kylie R. Catchpole1, Marc Verschuuren2, Frank Lenzmann3, Fiona J. Beck4, Ewold Verhagen1 and Albert Polman1; 1FOM Institute AMOLF, Amsterdam, Netherlands; 2Philips Research, Eindhoven, Netherlands; 3ECN Solar Energy, Petten, Netherlands; 4Engineering Department, Australian National University, Canberra, Australian Capital Territory, Australia.

2:00 PM KK3.2
Surface-plasmon-active Silver Nanohole Films as Transparent Electrodes in Organic Photovoltaics. Thomas H Reilly1, Anthony J Morfa2,1, Robert C Tenent2,1 and Jao van de Lagemaat1; 1Chemical & Biosciences Center, National Renewable Energy Laboratory, Golden, Colorado; 2Department of Chemistry & Biochemistry, University of Colorado, Boulder, Colorado.

2:15 PM KK3.3
Plasmonic GaAs Solar Cells: Absorption Enhancement by Metallic Nanostructures. Katsuaki Tanabe, Keisuke Nakayama and Harry A. Atwater; Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, California.

2:30 PM KK3.4
Red-shifting The Surface Plasmon Resonance of Silver Nanoparticles for Light Trapping in Solar Cells. Fiona Jean Beck1 and Kylie Catchpole2; 1Departmant of Engineering, Australian National University, Canberra, Australian Capital Territory, Australia; 2FOM Institute for Atomic and Molecular Physics, Amsterdam, Netherlands.

2:45 PM BREAK

SESSION KK4: Light Trapping in Thin Si Photovoltaic Devices
Chair: R.E.I. Schropp
Tuesday Afternoon, March 25, 2008
Room 2018 (Moscone West)

3:15 PM *KK4.1
Plasma Texturing and Porous Silicon Dielectric Mirrors for Epitaxial Thin Film Crystalline Silicon Solar Cells. Filip Duerinckx, Izabela Kuzma-Filipek, Kris Van Nieuwenhuysen, Guy Beaucarne and Jef Poortmans; IMEC, Heverlee, Belgium.

3:45 PM KK4.2
Nano-scale Investigation of Light Scattering at Randomly Textured Light Trapping Structures for Thin-film Silicon Solar Cells. Karsten Bittkau1, Thomas Beckers1, Carsten Rockstuhl2, Stephan Fahr2, Falk Lederer2 and Reinhard Carius1; 1Institut fuer Energieforschung, Forschungszentrum Juelich, Juelich, Germany; 2Institut fuer Festkoerpertheorie und -optik, Friedrich-Schiller-Universitaet Jena, Jena, Germany.

4:00 PM KK4.3
Zinc Oxide versus Silicon Oxide Based Intermediate Reflectors for Micromorph Solar Cells on Nanotextured Front Transparent Electrodes. Didier Domine, Julien Bailat, Peter Buehlmann, Adrian Billet and Christophe Ballif; Institute of microtechnology, University of Neuchâtel, Neuchâtel, NE, Switzerland.

4:15 PM KK4.4
Design of Four-junciton Tandem Solar Cells with a Si wafer as an Intermediate Tandem Cell. Ryuzo Ichikawa, Jiro Osaka, Yasuhiko Ishikawa and Kazumi Wada; materials engineering, university of Tokyo, Tokyo, Japan.

4:30 PM KK4.5
Comparison Between Flat ITO and Rough LP-CVD ZnO as Front TCO in Amorphous and Micromorph Silicon Thin Film Solar Cells for Substrate Configuration. Thomas Soderstrom, Franz-Joseph Haug, Vanessa Terrazzoni, Xavier Niquille and Christophe Ballif; Institute of Microtechnology, University of Neuchâtel, Neuchâtel, Neuchâtel, Switzerland.

4:45 PM KK4.6
Light Trapping in Thin-Film Polycrystalline-Silicon Solar Cells on Glass Substrates. Ivan Gordon, Dries Van Gestel, Guy Beaucarne and Jef Poortmans; MCP/SCT, IMEC, Leuven, Belgium.

SESSION KK5: Poster Session: Light Management in Solar Energy Conversion
Chair: Qing Song
Tuesday Evening, March 25, 2008
8:00 PM
Salon Level (Marriott)

KK5.1
Supramolecular Electrolytes for Solid State Dye Sensitized Solar Cells. Yong Soo Kang1, Sun Young Kim1, Yong-Gun Lee2, La Sun Jeon1 and Su Jin Kim1; 1Department of Chemical Engineering, Hanyang University, Seoul, South Korea; 2Chemical and Bilogical Engineering, Seoul National University, Seoul, South Korea.

KK5.2
Fabrication and Characterization of Well-aligned TiO2-nanotube-dye-sensitized Solar Cells. Sheng-chun Hung1,2, F. Ren3, J. Pearton1 and Gou-Chung Chi2; Materials Science & Engineering, University of Florida, Gainesville, Florida; Physics, National Central University, Jhong-li, Taiwan; Department of Chemical Engineering, University of Florida, Gainesville, Florida.

KK5.3
MBE Grown Quantum-Dot Intermediate-Band Solar Cell Structures. Alysha Grenko1, John Walker2, Ibrahim Kimukin2 and Elias Towe1,2; 1Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania; 2Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania.

KK5.4
Calculation of the Quantum Dot Superlattice Parameters Required for Implementation of the Intermediate-Band Solar Cells. Qinghui Shao and Alexander A Balandin; Nano-Device Laboratory, Department of Electrical Engineering and Materials Science and Engineering Program, University of California Riverside, Riverside, California.

KK5.5
Well-Defined Fullerene-Containing Diblock Copolymers Based on Regioregular Poly(3-hexylthiophene) and Polystyrene: Synthesis and Photovoltaic Properties. Jea Uk Lee1, Thomas P Russell2, Todd Emrick2 and Won Ho Jo1; 1Materials Science and Engineering, Seoul National University, Seoul, South Korea; 2Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts.

KK5.6
Accurate Device Structure Design and Characterization of P3HT and PCBM Blend Photovoltaic Cells. Myung-Su Kim1, Myung-Gyu Kang4, L. Jay Guo4,3 and Jinsang Kim1,2,3; 1Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan; 2Chemical Engineering, University of Michigan, Ann Arbor, Michigan; 3Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan; 4Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan.

KK5.7
Photovoltaic Properties of Organic Solar Cells with CuPc/C60 Heterojunctions and Transparent Top and Bottom Electrodes Under Light Illumination through Both Sides. Jung Jin Yang1,2, Seunguk Noh1,2 and Changhee Lee1,2; 1Seoul National University, Seoul, South Korea; 2Inter-university Semiconductor Research Center, Seoul, South Korea.

KK5.8
Layer-by-Layer Assembly and Photoelectrochemical Properties of Nanostructured Films Composed of Gold Nanoparticles and Titania Nanosheets. Nobuyuki Sakai1,2, Tetsu Tatsuma1,2 and Takayoshi Sasaki2,3; 1Institute of Industrial Science, The University of Tokyo, Tokyo, Japan; 2Japan Science and Technology Agency, Kawaguchi, Japan; 3Nanoscale Center, National Institute for Materials Science, Tsukuba, Japan.

KK5.9
Abstract Withdrawn

KK5.10
Structure Model of the Homologous InMO3(ZnO)n Compounds. Juarez L. F. Da Silva, Yanfa Yan and Suhuai Wei; Theoretical Materials Science Group, National Renewable Energy Laboratory, Golden, Colorado.

KK5.11
Design and Numerical Simulation on the Optical and Electrical Behavior of a ZnO:Al Nanowire Array a-Si pin Solar Cell. Chang-Wei Liu1, Zingway Pei1, Ren-Yui Ho1, Min-Wei Ho1, Yi-Chan Chen2 and Chi-Lin Chen2; 1Graduate Institute of Optoelectronic Engineering, Department of Electrical Engineering, National Chung Hsing University, Taichung, Taiwan; 2Photovoltaics Technology Center, Industrial Technology and Research Institute, Hsinchu, Taiwan.

KK5.12
Shape-Controllable Surface Texturization for Crystalline Silicon Solar Cells. Jong-San Im, Jin-Wan Jeon and Koeng Su Lim; Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.

KK5.13
Si, Ge and SiGe Nanocrystals Embedded in Transparent Matrices for Light Conversion for Solar Cell Applications. Rasit Turan, Mustafa Kulakci, Selcuk Yerci, Ilker Dogan, Arife Gencer Imer, Ilker Yildiz and Ayse Seyhan; Physics, Middle East Technical University, Ankara, Turkey.

KK5.14
How Much Can “Up-&-Down” Conversion Improve Solar Cells? Hagay Shpaisman, Olivia Niitsoo, Igor Lubomirsky and David Cahen; M&I, WIS, Rechovot, Israel.

KK5.15
Aluminum Doping Effects on the Zn1-xMgxO Transparent Conducting Films Deposited by rf Sputtering. Xiaonan Li, Hannah Ray and Rommel Noufi; 5200, NREL, Golden, Colorado.

SESSION KK6: General Topics in Light Management I
Chair: Randy Ellingson
Wednesday Morning, March 26, 2008
Room 2018 (Moscone West)

8:30 AM *KK6.1
Quantum-Confined Inorganic Solar Cells. Alex Freundlich, Center for Advanced Materials, University of Houston, Houston, Texas.

9:00 AM *KK6.2
Recent Advances in Intermediate Band Structures. Antonio Marti and Antonio Luque; Instituto de Energía Solar, Instituto de Energía Solar - Universidad Politécnica de Madrid, Madrid, Madrid, Spain.

9:30 AM *KK6.3
New Light Management Concepts for Thin-Film Silicon Solar Cells. Helmut Stiebig, E. Moulin, C. Haase and M. Schulte; IPV, FZ Juelich, Juelich, Germany.

10:00 AM BREAK

SESSION KK7: General Topics in Light Management II
Chair: Miro Zeman
Wednesday Morning, March 26, 2008
Room 2018 (Moscone West)

10:30 AM *KK7.1
Optically Driven Electron Charge and Spin Transport in Heterogeneous Polar Layered Structures: Merging Photo-voltaics and Photo-spintronics. Christos Flytzanis, Laboratoire Pierre Aigrain, Ecole Normale Superieure, Paris, France.

11:00 AM *KK7.2
Microscopic Theory of Coupled Quantum Well Structures in Photovoltaics. Urs Aeberhard and Rudolf Morf; Condensed Matter Theory, Paul Scherrer Institut, Villigen PSI West, Switzerland.

11:30 AM *KK7.3
Light Trapping in Thin Film Silicon n-i-p Solar Cells - Gains and Losses. Ruud E.I. Schropp, Faculty of Science, Utrecht University, Utrecht, Netherlands.

SESSION KK8: Advanced Light Management
Chair: Andrew Norman
Wednesday Afternoon, March 26, 2008
Room 2018 (Moscone West)

2:00 PM *KK8.1
Periodic Structures for Improved Light Management in Thin-film Silicon Solar Cells. Janez Krc1, Stefan Luxembourg2, Thomas Soderstrom3, Andrej Campa1, Miro Zeman2, Christophe Ballif3 and Marko Topic1; 1University of Ljubljana, Faculty of Electrical Engineering, Ljubljana, Slovenia; 2Delft University of Technology - DIMES, P.O. Box 5053, 2600 GB Delft, Netherlands; 3Institute of Microtechnology, University of Neuchatel, CH-2000 Neuchatel, Switzerland.

2:30 PM KK8.2
Harvesting Photons in Thin Film Solar Cells with Photonic Crystals. Rana Biswas1 and Zhou Dayu2; 1Ames Laboratory & Microelectronics Res Ctr, Physics/Astronomy & ECpE, Iowa State University, Ames, Iowa; 2Microelectronics Research Ctr, Electrical & Computer Engineering, Iowa State University, Ames, Iowa.

2:45 PM KK8.3
Enhanced Light-trapping in Solar Cells by Directional Selective Optical Filters. Carolin Ulbrich1, Thomas Kirchartz2 and Uwe Rau2; 1Institut für Physikalische Elektronik, Universität Stuttgart, Stuttgart, Germany; 2IEF5-Photovoltaik, Forschungszentrum Jülich, Jülich, Germany.

3:00 PM KK8.4
Monte-Carlo Simulations of Fluorescent Photovoltaic Collectors. Liv Proenneke1, Gerda C. Gläser1 and Uwe Rau2; 1Institut für Physikalische Elektronik, Universität Stuttgart, Stuttgart, Germany; 2IEF5-Photovoltaik, Forschungszentrum Jülich, Jülich, Nordrhein-Westphalen, Germany.

3:15 PM BREAK

SESSION KK9: Organic and Sensitized Solar Cells
Chair: Matt Beard
Wednesday Afternoon, March 26, 2008
Room 2018 (Moscone West)

3:30 PM *KK9.1
New Strategies for Improved Light Management in Organic based Photovoltaics. Jan M. Kroon, Solar Energy, ECN, Petten, Netherlands.

4:00 PM KK9.2
The Influence of Particle Sizes on the Optical Characteristics of Nanocrystalline TiO2 Films for Dye-Sensitized Solar Cells. Peter Chao-Yu Chen, Guido Rothenberger and Michael Grätzel; Institute of Chemical Sciences and Engineering, EPFL, Lausanne, VD, Switzerland.

4:15 PM KK9.3
Application of Long-range Ordered Mesoporous TiO2 Films to Dye-sensitized Solar Cell. Wan In Lee, Yong Joo Kim and Jia Hong Pan; Department of Chemistry, Inha University, Incheon, South Korea.

4:30 PM KK9.4
Quantum Dot Sensitized Nanostructured Solar Cells. Jun Wang, Jun Xu and Zhiqun Lin; Department of Materials Science and Engineering, Iowa State University, Ames, Iowa.

SESSION KK10: Nanostructures I
Session Chair: Miro Zeman
Thursday Morning, March 27, 2008
Room 2018 (Moscone West)

EARLY START

8:15 AM KK10.1
Size-dependent Intrinsic Radiative Decay Rates of Silicon Nanocrystals at Large Confinement Energies. Milan Sykora1, Lorenzo Mangolini2, Richard Schaller1, Uwe Kortshagen2, David Jurbergs3 and Victor Klimov1; 1LANL, Los Alamos, New Mexico; 2Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota; 3Innovalight, Inc., Santa Clara, California.

8:30 AM *KK10.2
Multiple Exciton Generation in Semiconductor Quantum Dots and Novel Molecules: Applications to 3rd Generation Solar Photon Conversion. Arthur J. Nozik, Randy J. Ellingson, Matt C. Beard, Joseph M. Luther, Justin C. Johnson, Matt Law, Qing Song and James E. Murphy; Center for Chemical Sciences and Biosciences, National Renewable Energy Laboratory, Golden, Colorado.

9:00 AM KK10.3
Study of Carrier Multiplication in Semiconductor Nanocrystals by Transient Photoluminescence Spectroscopy. Gautham Padmanabhan Nair, Scott Mitchell Geyer and Moungi G Bawendi; Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts.

9:15 AM KK10.4
Time-resolved Photoluminescence Studies of Semiconductor Nanocrystals and Coupled-nanocrystal Films. Qing Song1, Wyatt Metzger4, Joseph Luther1,3, Matt Law1, Matt Beard1, Arthur Nozik1,2 and Randy Ellingson1; 1Chemical and Biosciences Center, National Renewable Eenergy Laboratory, Golden, Colorado; 2Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado; 3Department of Applied physics, Colorado School of Mines, Golden, Colorado; 4National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, Colorado.

9:30 AM *KK10.5
Up Conversion for Photovoltaic Cells. Gavin Conibeer, Thorsten Trupke and Avi Shalav; ARC Photovoltaics Centre of Excellence, University of New South Wales, Sydney, New South Wales, Australia.

10:00 AM BREAK

SESSION KK11: Spectral Management
Chair: Antonio Marti
Thursday Morning, March 27, 2008
Room 2018 (Moscone West)

10:30 AM *KK11.1
A Critical Review of Intermediate Band Solar Cell Experimental Results. Andrew Gordon Norman, National Renewable Energy Laboratory, Golden, Colorado.

11:00 AM KK11.2
Low Power Noncoherent Upconversion in Solid Polymer Films. Felix N. Castellano, Chemistry & Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio.

11:15 AM KK11.3
Low-Cost Spectral Splitting for Solar Cells with Simple Dichroic Mirror: Proof of Concept and Optics. David Cahen1, Igor Lubomirsky1, Akiba Segal1, Oscar Stafsudd2 and Arie Zaban3; 1Weizmann Institute of Science, Rehovot, Israel; 2University of California, Los Angeles, California; 3Bar-Ilan University, Ramat-Gan, Israel.

11:30 AM KK11.4
Luminescent Solar Concentrators using Optimized Resonant Energy Transfer. Michael James Currie, Jon Mapel, Shalom Goffri and Marc Baldo; Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts.

11:45 AM KK11.5
A Generic Configuration for Improved Spectral Matching of Solar Cells, Especially Suited for Third-Generation Cells. Arie Zaban1, Shlomit Greenwald1, Igor Lubomirsky2 and David Cahen2; 1Chemistry, Bar-Ilan University, Ramat-Gan, Israel; 2Materials & Interfaces, Weizmann Institute of Science, Rehovot, Israel.

SESSION KK12: Nanostructures II
Chair: Jan Kroon
Thursday Afternoon, March 27, 2008
Room 3018 (Moscone West)

1:30 PM *KK12.1
Size-Controlled Silicon Quantum Dots Superlattice for Thin-Film Solar Cell Applications. Makoto Konagai1, Yasuyoshi Kurokawa1, Shinsuke Miyajima1 and Akira Yamada2; 1Department of Physical Electronics, Tokyo Institute of Technology, Tokyo, Japan; 2Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, Tokyo, Japan.

2:00 PM KK12.2
Enhanced Broadband Optical Absorption in Silicon Nanowire Films. Loucas Tsakalakos1, Joleyn Balch1, Jody Fronheiser1, Matthew Pietrzykowski1, Peter J. Codella1, Bastiaan A. Korevaar1, Oleg Sulima2, James Rand2 and Umakant Rapol3; 1General Electric - Global Research Center, Niskayuna, New York; 2GE Energy - Solar Technologies, Newark, Delaware; 3General Electric - John F. Welch Technology Center, Bangalore, India.

2:15 PM KK12.3
Hybrid Solar Cells from Polymers and Silicon Nanocrystals. Chin-Yi Liu and Uwe R. Kortshagen; Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota.

2:30 PM KK12.4
Germanium Nanocrystal Films for Photovoltaic Applications. Zak Holman, Ryan Gresback and Uwe R. Kortshagen; Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota.

2:45 PM KK12.5
Record Voc Dilute Nitride MQW Solar Cell. Alex Freundlich1,2,3, A. Fotkatzikis1,2, A. Alemu1, L. Bhusal1,2 and G. Radhakrishnan1,3; 1Center for Advanced Materials, University of Houston, Houston, Texas; 2Physics Department, University of Houston, Houston, Texas; 3Electrical and Computer Engineering, University of Houston, Houston, Texas.

3:00 PM BREAK

SESSION KK13: Back-reflectors
Chair: Ales Poruba
Thursday Afternoon, March 27, 2008
Room 2018 (Moscone West)

3:30 PM *KK13.1
Periodic Textures for Enhanced Current in Thin Film Silicon Solar Cells. Franz-Josef Haug, Thomas Soderstrom, Vanessa Terrazzoni-Daudrix, Xavier Niquille, Stephanie Perregaux and Christophe Ballif; Institute of Microtechnology, University of Neuchatel, Neuchatel, Switzerland.

4:00 PM KK13.2
Optical Enhancement by Textured Back Reflector in Amorphous and Nanocrystalline Silicon Based Solar Cells. Baojie Yan1, Guozhen Yue1, Chun-Sheng Jiang2, Jessica M. Owens1, Jeffrey Yang1 and Subhendu Guha1; 1United Solar Ovonic LLC, Troy, Michigan; 2The National Renewable Energy Laboratory, Golden, Michigan.

4:15 PM KK13.3
Potential for Enhanced Absorption Using Diffraction Gratings in Thin-film Silicon Solar Cells. Andrej Campa1, Olindo Isabella2, Rob van Erven3, Patrick Peeters3, Herman Borg3, Janez Krc1, Marko Topic1 and Miro Zeman2; 1University of Ljubljana, Ljubljana, Slovenia; 2Delft University of Technology - DIMES, Delft, Netherlands; 3OM&T B.V., Eindhoven, Netherlands.

4:30 PM KK13.4
Light Trapping in μc-Si:H Thin-film Solar Cells by Back Surface Reflector with Grating Structure Fabricated by Self-ordering Process. Hitoshi Sai, Hiroyuki Fujiwara and Michio Kondo; Research Center for Photovoltaics, National Institute of Advanced Science and Technology, Tsukuba, Ibaraki, Japan.

4:45 PM KK13.5
Nanoimprint Lithography of Light Trapping Structures in Sol-gel Coatings for Thin Film Silicon Solar Cells. Maurits C. R. Heijna1, Jochen Loffler1, Bas B. Van Aken1, Evert E. Bende1, Wim J. Soppe1, Herman Borg2 and Patrick G.J.M. Peeters2; 1ECN Solar Energy, Petten, Netherlands; 2OM&T, Eindhoven, Netherlands.



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