Symposium F.EN02-Silicon for Photovoltaics
Silicon continues to dominate the photovoltaic market with increasing efficiencies and lower costs combined with excellent reliability. The further development of silicon photovoltaics will also be driven by the ability to develop concepts at cell, module and system level that further increase yield, reduce cost and extend reliability. To maintain this trend, sustained material research in key and emerging areas along the value chain is vital, including: (i) new silicon-enabled absorbers as well as the understanding and mitigation of bulk absorber material defects; (ii) carrier-selective, passivating contact layers and stacks for high voltage devices; (iii) high efficiency device concepts including, but not limited to, photon management, multi-junction solar cells and new metallization schemes; and (iv) silicon PV module and integrated system related material research including reliability, stability and recycling aspects.
Topics will include:
- Absorber–Development of new silicon-enabled absorbers that could offer higher absorption and/or lower Auger recombination. This also extends to alternative absorber fabrication methods such as layer separation/transfer, epitaxial wafer processes, and solid-/liquid-induced crystallization aimed at kerfless silicon or ultra-thin silicon absorbers. Research related to bulk Si defects analysis, gettering, bulk hydrogenation, and lifetime degradation / mitigation are also encouraged.
- Carrier-selective passivating contacts–We welcome contributions discussing fundamental, underlying principles of carrier-selective contacts (i.e. surface passivation, band alignment/bending, Fermi-level pinning at interfaces), innovative deposition techniques and doping methods, contact hydrogenation, new materials (including transparent electrodes and doping-free approaches) and new functionalities (temperature stability, transparency, patterned depositions).
- High efficiency device concepts–We seek contributions aimed at improved solar cell performance, including the development of novel photon management strategies (e.g. advanced surface textures, up- and down conversion), multi-junction architectures (e.g. III-V/Si or Perovskite/Si tandems), new metallization technologies (especially to passivated contacts), and back-contacted architectures.
- We invite contributions dealing with module- and integrated system-related material aspects ranging from the interconnection and encapsulation of silicon solar cells to optical design of silicon modules (e.g. new anti-reflective coatings, albedo for bifacial modules) as well as integrating Si modules into systems (e.g. PV-battery interface, building integration, vehicle integration) and recycling.
- Silicon and silicon-enabled photovoltaic devices, such as all-silicon tandem solar cells, tandem-on-silicon solar cells, new device architectures, bifacial cells, silicon nanowires/nanocrystals solar cells, and thin-film silicon solar cells. Absorber, doping, contact, passivation, transparent conductor, and metallization materials for silicon (or tandem) photovoltaic devices.
- Silicon film materials such as amorphous silicon, nanocrystalline silicon, silicon carbides and oxides, epitaxial silicon and epitaxial layers on silicon, silicon-germanium, barium-disilicide, silicon clathrates and silicon-(carbon-)tin alloys. Methods of making and/or doping silicon including (PE)CVD, kerfless wafering, laser- and metal-induced crystallization, and implantation.
- Characterization and modeling of the structural, mechanical, electrical, and optical properties of silicon-related materials and devices on cell and module level ranging from novel measurement techniques to multi-scale modeling approaches.
- A tutorial complementing this symposium is tentatively planned.
(National Renewable Energy Laboratory, USA)
(Jolywood(Suzhou) Sunwatt Co., Ltd., China)
Stefaan De Wolf
(King Abdullah University of Science and Technology, Saudi Arabia)
(Interuniversity Microelectronics Centre, Belgium)
(DSM Advanced Solar, USA)
(Forschungszentrum Jülich GmbH, Germany)
(Fraunhofer-Institut für Solare Energiesysteme, Germany)
(1366 Technologies, USA)
(Arizona State University, USA)
(National Renewable Energy Laboratory, USA)
(Helmholtz Zentrum Berlin, Germany)
(University of California, Merced, USA)
(Institue of Physica of the Czech Academy of Sciences, Czech Republic)
(University of New South Wales, Australia)
(National Institute of Advanced Industrial Science and Technology, Japan)
(University of Twente, Netherlands)
(Ulsan National Institute of Science and Technology, Republic of Korea)
(Panasonic Corporation, Japan)
(Universität Konstanz, Germany)
(bifa Umweltinstitut GmbH, Germany)
(Jinko Solar, China)
(Kaneka Corporation, Japan)
(Peking University, China)
Forschungszentrum Jülich GmbH
The University of Melbourne
National Renewable Energy Laboratory