Effects on the open-circuit voltage of grain boundaries within the junction space-charge region of polycrystalline solar cells
- 1 December 1980
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Electron Device Letters
- Vol. 1 (12) , 267-269
- https://doi.org/10.1109/EDL.1980.25314
Abstract
A physical explanation is given for the observed dependence of open-circuit voltage on grain size in polycrystalline solar cells when no such dependence is seen for short-circuit current. This explanation identifies carrier recombination through grain-boundary surface states within the junction space-charge region as a primary mechanism underlying these dependencies. Experimental data that support this explanation are discussed, and possible ways of improving the conversion efficiency of polycrystalline solar cells are indicated.Keywords
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