Investigations of C60 derivatives deposited on perovskite thin films and photovoltaic performance of the corresponding solar cells

• Main Authors: Wei-Chen Huang, 黃偉宸
• Other Authors: Sheng-Hui Chen
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/37371136774981034722

碩士 === 國立中央大學 === 照明與顯示科技研究所 === 105 === Due to the worldwide decrease in fossil fuels as well as the rising awareness in environmental protection, green energy is becoming more and more important. Among all green energy solutions, photovoltaic solar cells and their potential to make a positive impact is highly anticipated. In recent years, organo-metal halide perovskite solar cells have been developed at an incredibly fast rate. Perovskite solar cells are fabricated using the layer by layer method while each layer bringing a different feature to the solar cell. In order to achieve an understanding of how to make these highly power conversion efficient, the following will discuss the structure and features found at the electron transport layer (ETL)/perovskite interface. In this thesis, the structure of the perovskite solar cells is Ag/ETL/CH3NH3PbI3/PEDOT:PSS/ITO/glass. The ETL was made by mixing PC61BM and MC60 in different ratios. A PEDOT:PSS(1:20 wt%) thin film was used as the hole transport layer. The CH3NH3PbI3 thin film was used as the light absorbing layer. In our perovskite solar cells, the best power conversion efficiency is 13.2%. The open-circuit voltage, short-circuit current density and fill factor are 0.974 V, 20.57 mA/cm2 and 69.1%, respectively.