Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors,
Chinese Academy of Sciences, Beijing 100083, China
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DOI:
10.7502/j.issn.1674-3962.2015.02.07
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Abstract:
Organic-inorganic bulk heterojunction(BHJ) solar cells which consist of conjugated polymers as electron donors and inorganic semiconductor nanocrystals as electron acceptors , have attracted extensive research in recent years. They combine the advantages of organic materials and the inorganic counterparts, that is the flexibility, design capability and easy-processing of organic materials as well as high charge mobility and good stability of inorganic ones, and have good prospects for development. In this article, we first explain the structure and general working principles of organic-inorganic BHJ solar cells and then review the recent developments of conjugated polymer, inorganic materials and device preparation process, including chemical structure and bandgaps of common polymers, morphology and surface modification of inorganic nanocrystals and control of active layer thickness and morphology. CdSe、TiO2、PbS nanocrystals based organic-inorganic BHJ solar cells are mainly introduced . Finally, we discuss the problems of organic-inorganic solar cells and their future developments.