Locally grown Cu(In,Ga)Se2 micro islands for concentrator solar cells
| Autor: | Torsten Boeck, K. Eylers, Jörg Krüger, Martina Schmid, Stefan Andree, Owen C. Ernst, F. Ringleb, Berit Heidmann, Jörn Bonse |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Fabrication business.industry Chalcopyrite Energy conversion efficiency 02 engineering and technology 021001 nanoscience & nanotechnology Concentrator 01 natural sciences Material efficiency visual_art Physical vapor deposition 0103 physical sciences visual_art.visual_art_medium Optoelectronics Self-assembly 0210 nano-technology business |
| Zdroj: | Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VII. |
| DOI: | 10.1117/12.2288253 |
| Popis: | Light concentration opens up the path to enhanced material efficiency of solar cells via increased conversion efficiency and decreased material requirement. For true material saving, a fabrication method allowing local growth of high quality absorber material is essential. We present two scalable fs-laser based approaches for bottom-up growth of Cu(In,Ga)Se2 micro islands utilizing either site-controlled assembly of In(,Ga) droplets on laser-patterned substrates during physical vapor deposition, or laser-induced forward transfer of (Cu,In,Ga) layers for local precursor arrangement. The Cu(In,Ga)Se2 absorbers formed after selenization can deliver working solar devices showing efficiency enhancement under light concentration. |
| Databáze: | OpenAIRE |
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