Thin film solar cells on glass by transfer of monocrystalline Si films
Thin film solar cells based on monocrystalline Si films are transferred to a glass superstrate. Chemical vapor deposition serves to epitaxially deposit Si on quasi-monocrystalline Si films obtained from thermal crystallization of a double layer porous Si film on a Si wafer. A separation layer that f...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1999-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/S1110662X99000173 |
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| Summary: | Thin film solar cells based on monocrystalline Si films are transferred to a glass superstrate.
Chemical vapor deposition serves to epitaxially deposit Si on quasi-monocrystalline Si films obtained from
thermal crystallization of a double layer porous Si film on a Si wafer. A separation layer that forms during
this crystallization process allows one to separate the epitaxial layer on top of the quasi-monocrystalline film
from the starting Si wafer. We presently achieve an independently confirmed solar cell conversion efficiency
of 9:26%. Ray tracing studies in combination with electrical device simulation indicate an efficiency potential
of around 17% using simple device processing and moderate assumptions on minority carrier lifetime and
surface recombination. |
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| ISSN: | 1110-662X |