预先合成量子点组装制备高效量子点太阳电池

发布时间：2018-03-31 08:50

本文选题：量子点敏化太阳电池　切入点：沉积方法　出处：《物理学报》2015年03期

【摘要】：量子点太阳电池现已成为极具潜力的"第三代"光伏器件,其优点体现在材料成本低廉,制备工艺简便,以及其敏化剂特有的多激子效应(MEG)潜能和吸光范围可方便调节等方面.但是与染料分子敏化剂相比,量子点敏化剂粒径更大、表面缺乏具有与Ti O2结合的官能团,这导致其在Ti O2介孔中渗透阻力大、难以在Ti O2表面吸附沉积,所以量子点沉积手段在电池组装过程中尤为重要.本文综述了电池组装过程中量子点的沉积方法,分类阐述了直接生长量子点方法:化学浴沉积(CBD)和连续离子层吸附生长(SILAR),以及采用预先合成量子点的沉积方法:连接分子辅助法(LA)、直接吸附法(DA)和电泳沉积(EPD)方法,陈述了各沉积方法的发展过程及相应电池性能的改善,对比了这些沉积方法的优缺点.突出介绍了预先合成量子点的沉积方法,特别是近年来不断优化而凸显优势的连接分子辅助法(LA).总结了此方法快速、均匀沉积以及实现器件高性能的特点,介绍了此方法沉积表面缺陷更少、结构更完善、材料更"绿色化"的量子点敏化剂的最新研究成果.
[Abstract]:Quantum dot solar cells have become the "third generation" photovoltaic devices with great potential. The advantages of these devices are the low cost of materials and the simple preparation process. The multiexciton effect (Meg) potential and absorptivity range of the sensitizer can be easily adjusted. However, compared with the dye molecular sensitizer, the quantum dot sensitizer has a larger particle size and a lack of functional groups on the surface of the photosensitizer that binds to TIO 2. As a result, it is difficult to adsorb and deposit on TIO _ 2 surface due to its high permeable resistance in TIO _ 2 mesoporous, so quantum dot deposition is particularly important in the process of battery assembly. In this paper, the deposition methods of quantum dots in the process of battery assembly are reviewed. The methods of direct growth of quantum dots, chemical bath deposition (CBD) and continuous ion layer adsorption growth (SILARA), as well as the deposition methods of pre-synthetic quantum dots, such as linking molecular assistant method, direct adsorption method and electrophoretic deposition method, are described in this paper. The development process of various deposition methods and the improvement of the corresponding battery performance are described. The advantages and disadvantages of these deposition methods are compared. The deposition methods of pre-synthetic quantum dots are highlighted. In particular, the linking molecular aid method, which has been optimized continuously in recent years, highlights its advantages. The characteristics of this method for fast, uniform deposition and the realization of high performance of devices are summarized, and the surface defects and structure of this method are introduced. The latest research results of more "green" quantum dot sensitizers for materials.
【作者单位】：结构可控先进功能材料及其制备教育部重点实验室华东理工大学应用化学研究所;
【基金】：国家自然科学基金(批准号:21175043) 上海市科委(批准号:11JC1403100,12ZR1407700)资助的课题~~
【分类号】：TM914.4

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