期刊
ACS ENERGY LETTERS
卷 2, 期 2, 页码 476-480出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.6b00678
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资金
- Engineering and Physical Sciences Research Council of the UK (EPSRC)
- King Abdulaziz City for Science and Technology (KACST)
- Engineering and Physical Sciences Research Council [1209452] Funding Source: researchfish
After 60 years of research, silicon solar cell efficiency saturated close to the theoretical limit, and radically new approaches are needed to further improve the efficiency. The use of tandem systems raises this theoretical power conversion efficiency limit from 34% to 4S%. We present the advantageous spectral stability of using voltage-matched tandem solar cells with respect to their traditional series-connected counterparts and experimentally demonstrate how singlet fission can be used to produce simple voltage-matched tandems. Our singlet fission silicon pentacene tandem solar cell shows efficient photo current addition. This allows the tandem system to benefit from carrier multiplication and to produce an external quantum efficiency exceeding 100% at the main absorption peak of pentacene.
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