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Call for Papers

Symposium EE3—Materials and Devices for Full Spectrum Solar Energy Harvesting

Significant efforts have been applied to realize full spectrum solar energy utilization in different types of photovoltaic (PV) and solar-thermal devices. Single junction solar cells are already near theoretical efficiency limits defined by thermalization losses and sub-bandgap transparency. Multijunction (tandem) solar cells provide pathways to greatly improved efficiencies by spectrally splitting sunlight into sub-cells with different bandgaps.

Conventional multijunction cells, however, require lattice matched or metamorphic epitaxial growth, which constrains options in material selection. To address these challenges and further approach thermodynamic limits in efficiency, innovations in materials design and device architecture are required. Emerging methods for full spectrum energy harvesting include crystal epitaxy, mechanical stacking/bonding, spectral splitting, hybrid solar electric/thermal energy harvesting, etc. A broad range of materials proposed for full spectrum solar cells and devices span from III-V, silicon and germanium, to chacogenides, perovskites, organic and hybrid materials. Novel concepts for light/thermal management, including light trapping, photon recycling, downconversion/upconverstion and quantum dots, may be applied.

This symposium provides a forum to discuss various approaches to realize high-efficiency, low-cost full spectrum solar cells and systems. It will focus on the fundamental materials science, interface properties, device physics, light management and manufacturing methods to achieve multijunction solar cells and systems. The presentations and invited abstracts cover interdisciplinary fields including physics, chemistry, materials science, mechanical engineering and electrical engineering.

Topics will include:

  • Methods for solar cell material growth or synthesis
  • Hybrid solar electric and solar thermal energy harvesting
  • Concepts and theories for light and thermal management
  • Current and new solar cell absorbers and their electronic and optical properties
  • Device architecture and assembly, including printing, mechanical bonding, spectral splitting optics, etc.
  • Optical and electronic modeling and simulations for multijunction solar cell devices
  • Manufacturing and characterization of solar modules and systems

Invited Speakers:

  • Harry Atwater (California Institute of Technology, USA)
  • Allen Barnett (University of New South Wales, Australia)
  • Tonio Buonassisi (Massachusetts Institute of Technology, USA)
  • Shanhui Fan (Stanford University, USA)
  • Noel Chris Giebink (The Pennsylvania State University, USA)
  • Richard King (Spectrolab Inc., USA)
  • Shulong Lu (Sozhou Institute of Nano-Tech and Nano-Bionic, CAS, China)
  • Nam-Gyu Park (Sungkyunkwan University, Republic of Korea)
  • John Rogers (University of Illinois at Urbana-Champaign, USA)
  • Eric Schiff (ARPA-E, U.S. Department of Energy, USA)
  • Myles Steiner (National Renewable Energy Laboratory, USA)
  • Joseph Stekli (Sunshot Initiative, U.S. Department of Energy, USA)
  • Eli Yablonovitch (University of California, Berkeley, USA)

Symposium Organizers

Xing Sheng
Tsinghua University
Electronic Engineering
86-135-5222-5202, xingsheng@tsinghua.edu.cn

Matthew Escarra
Tulane University
Physics and Engineering Physics
504-862-8673, escarra@tulane.edu

Anita Ho-Baillie
The University of New South Wales
School of Photovoltaic and Renewable Energy Engineering
61-2-9385-4257, a.ho-baillie@unsw.edu.au

Matthew Lumb
U.S. Naval Research Laboratory and The George Washington University