开尔文探针力显微镜
钙钛矿(结构)
材料科学
光伏系统
光电子学
纳米技术
能量转换效率
混合太阳能电池
有机太阳能电池
导电原子力显微镜
多晶硅
聚合物
聚合物太阳能电池
原子力显微镜
化学工程
电气工程
复合材料
工程类
图层(电子)
薄膜晶体管
出处
期刊:Springer series in surface sciences
日期:2018-01-01
卷期号:: 331-365
被引量:8
标识
DOI:10.1007/978-3-319-75687-5_11
摘要
Nowadays, solution processed solar cells based on organic and hybrid-perovskite semi-conductors are serious competitors for silicon-based and inorganic photovoltaic technologies in terms of production costs, performance to weight ratio, flexibility, and easy manufacturing. Since the beginning of this century, the power conversion efficiency (PCE) values of polymer solar cells have continuously increased, and now exceed ten percent. More recently, following the development of dye-sensitized solar cells, lead-halide perovskite based devices with various architectures have been developed leading to PCE exceeding twenty percent. The goal of this chapter is to show how KPFM can contribute to further improve the performances of these solution-processed photovoltaic devices, by gaining a deeper insight in the local mechanisms governing the charge carrier generation, recombination, transport, and extraction at the electrodes. This chapter will focus more specifically on KPFM investigations of the surface potential and surface photo-voltage of organic donor-acceptor interfaces and polycrystalline lead halide perovskites in relation with the sample morphology and structural defects at the mesoscopic and nanometer scales, cross sectional KPFM investigations, and time-resolved measurements of the charge dynamics by KPFM under frequency modulated illumination.
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