Collection efficiency of heterojunction solar cells
- 1 April 1977
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electron Devices
- Vol. 24 (4) , 388-392
- https://doi.org/10.1109/T-ED.1977.18745
Abstract
The dependence of the generation efficiencyk, the collection efficiencyQ, and the current efficiency\sigma = kQof a heterojunction solar cell on the two semiconductor bandgapsE_{g1}andE_{g2}is investigated. It is assumed that the two semiconductors have ideal absorption characteristics. It is shown that a heterojunction solar cell can exhibit a better current efficiency σ than a homojunction solar cell, if the semiconductor with the larger bandgap is situated at the illuminated side of the junction.Keywords
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