量子点敏化太阳能电池研究进展  

Progress in Quantum Dot-Sensitized Solar Cells

作　　者：卫会云[1] 王国帅[1] 吴会觉[1] 罗艳红[1] 李冬梅[1] 孟庆波[1] 

机构地区：[1]中国科学院物理研究所,中科院清洁能源前沿研究重点实验室,北京市新能源材料与器件重点实验室,北京100190

出　　处：《物理化学学报》2016年第1期201-213,共13页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金(91433205;51402348;51421002;21173260;11474333;91233202);国家重点基础研究发展规划项目(973)(2012CB932903)资助~~

摘　　要：量子点敏化太阳能电池(QDSCs)因其制备成本低、工艺简单及量子点(QDs)本身的优异性能(如尺寸效应、多激子效应)等优点,近年来受到广泛关注。在此类电池中,无机半导体量子点敏化剂作为吸光材料,其自身的光电性质、制备方法、表面缺陷、化学稳定性及其在TiO_2光阳极上的敏化方法等是影响电池性能的关键。本文综述了无机半导体量子点敏化剂(包括窄带隙二元量子点、多元合金量子点及Type-II核壳量子点)的最新研究进展,重点介绍了胶体量子点的制备方法;分类阐释了量子点在TiO_2光阳极表面的沉积与敏化方法,特别是双官能团辅助自组装吸附法;总结了针对提高电子注入效率和减少复合的量子点表面修饰方法;最后简要介绍了QDSCs的电解质和对电极的研究进展。Quantum dot-sensitized solar cells （QDSCs） have attracted much attention in the past few years because of the advantages of quantum dots （QDs）, including low cost, easy fabrication, size-dependence bandgap, and multiple exciton generation （MEG）. The properties of QD sensitizers influence the performance of QDSCs, such as their photoelectric characteristics, preparation methods, surface defects, chemical stability, and their sensitization towards TiO2 photoanodes. This review demonstrates the development of QD sensitizers, including narrow bandgap binary QDs, ternary or quaternary alloyed QDs, and Type-II core-shelF QDs, especially the preparation methods of colloidal QDs. Furthermore, the deposition and sensitization methods of QDs are introduced in detail, particularly bifunctional-assisted self-assembly deposition. Meanwhile, methods to improve electron injection efficiency and reduce charge recombination are also summarized. Finally, a brief introduction is provided to the development of electrolytes and counter electrodes in QDSCs.

关 键 词：量子点敏化太阳能电池 无机半导体量子点 胶体量子点 双官能团辅助自组装 表面修饰 

分 类 号：TM914.4[电气工程—电力电子与电力传动]