A 720 mV open circuit voltage SiOx:c-Si:SiOx double heterostructure solar cell
- 1 December 1985
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 47 (11) , 1211-1213
- https://doi.org/10.1063/1.96331
Abstract
For maximal performance solar cells should resemble semiconductor lasers, i.e., they should be constructed in the form of a double heterostructure. We have found rather good performance in SIPOS-crystalline silicon-SIPOS double heterostructure solar cells, where SIPOS≡SiOx. The processing of these solar cells gives insights into the truly outstanding performance of the n+-SIPOS: p-Si heterojunction which has a forward saturation current coefficient J0=10−14 A/cm2, or equivalently an ‘‘emitter Gummel number’’ Ge=3.3×1015 s/cm4. This suggests that crystalline silicon solar cells can be much more efficient than had been suspected.Keywords
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