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http://hdl.handle.net/1942/1487
Title: | Thin-film polycrystalline-silicon solar cells on high-temperature glass made by aluminium-induced crystallization of amorphous silicon | Authors: | Van Gestel, D. GORDON, Ivan Carnel, L. Pinckney, L. Mayolet, A. D'HAEN, Jan Beaucarne, Guy POORTMANS, Jef |
Issue Date: | 2006 | Publisher: | MRS | Source: | Amorphous and Polycrystalline Thin Film Silicon Science and Technology. p. A26-04-.... | Series/Report: | MRS symposium Proceedings | Series/Report no.: | 910 | Abstract: | Efficient polycrystalline-silicon (pc-Si) solar cells on foreign substrates could lower the price of photovoltaic electricity. Alumnium-induced crytallization (AIC) of amorphous silicon followed by epitaxial thickening at high temperature seems a good way to obtain efficient pc-Si solar cells. Due to its transparency and low cost, glass is well suited as substrate for pc-Si cells. However, most glass substrates do not withstand temperatures around 1000°C that are needed for high-temperature epitaxial growth. In this paper we investigate the use of experimental transparent glass-ceramics with high strain-point temperatures as substrates for pc-SI solar cells. AIC needs layers made on these substrates showed in-plane grain sizes up to 16 μm. Columnar growth was observed on these seed layers during high-temperature epitaxy. First pc-Si solar cells made on glass-ceramic substrates in substrate configuration showed efficiencies up to 4.5%, fill factors up to 75% and open-circuit voltage (Voc) values up to 536 mV. This is the highest Voc reported for pc-Si solar cells on glass and the best cell efficiency reported for cells made by AIC on glass. | Keywords: | photovoltaic; grain boundaries; chemical vapor deposition (CVD)(deposition) | Document URI: | http://hdl.handle.net/1942/1487 | ISI #: | 000245670700103 | Category: | C1 | Type: | Proceedings Paper | Validations: | ecoom 2008 |
Appears in Collections: | Research publications |
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