期刊
JOURNAL OF COMPUTATIONAL ELECTRONICS
卷 15, 期 3, 页码 1110-1118出版社
SPRINGER
DOI: 10.1007/s10825-016-0850-1
关键词
Perovskite; Solar cells; TCAD; Simulation; Photovoltaics
资金
- Masdar Institute of Science and Technology
In this paper, we investigate perovskite planar heterojunction solar cells using 2D physics-based TCAD simulation. The perovskite cell is modeled as an inorganic material with physics-based parameters. A planar structure consisting of TiO2 as the electron transport material (ETM), CH3NH3PbI3-xClx as the absorber layer, and Spiro-OmeTAD as the hole transport material (HTM) is simulated. The simulated results match published experimental results indicating the accuracy of the physics-based model. Using this model, the effect of the hole mobility and electron affinity/band gap of the hole transport layer(HTM) is investigated. The results show that in order to achieve high efficiency, the mobility of the HTM layer should exceed 10(-4)cm(2)/V s. In addition, reducing the band offset to match the valance band of the perovskite results in achieving the highest efficiency. Moreover, the results are discussed in terms of charge transport in the HTM layer and the band alignment at the HTM/perovskite interface.
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