Light-splitting photovoltaic system utilizing two dual-junction solar cells |
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Authors: | Kanglin Xiong Shulong Lu Jianrong Dong Taofei Zhou Desheng Jiang Rongxin Wang Hui Yang |
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Affiliation: | aSuzhou Institute of Nano-tech and Nano-bionics, CAS, Ruoshui Road 398, Suzhou 215125, PR China;bInstitute of Semiconductors, CAS, No. A35, Qing Hua East Road, Beijing 100083, PR China |
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Abstract: | There are many difficulties limiting the further development of monolithic multi-junction solar cells, such as the growth of lattice-mismatched material and the current matching constraint. As an alternative approach, the light-splitting photovoltaic system is investigated intensively in different aspects, including the energy loss mechanism and the choice of energy bandgaps of solar cells. Based on the investigation, a two-dual junction system has been implemented employing lattice-matched GaInP/GaAs and InGaAsP/InGaAs cells grown epitaxially on GaAs and InP substrates, respectively. |
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Keywords: | Light splitting GaInP/GaAs GaInAsP/InGaAs Dual-junction |
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