钙钛矿光伏电池材料优化设计研究

为提高钙钛矿太阳能电池稳定性和转换效率，利用Keithley装置、X射线衍射仪（XRD）、Horiba-Jobin-Yvon系统、扫描电子显微镜（SEM）进行测试分析，采用相同参数对掺入GA的钙钛矿光伏材料MA86GA14PbI3和掺入MA的钙钛矿光伏材料MAPBI3组合进行比较分析，通过光学、结构和形态效应分析，发现GA可以成功地融入到PVSK晶格中，通过GA的使用，结晶度提高，证实了钙钛矿晶胞有轻微的晶格膨胀。经过PL光谱分析，GA显示SSPL强度比MA有显著提高，采用ITO/TIO2/PVSK/Spiro-Ometad/AU平面器件结构改变GA含量，结果表明GA掺入对VOC有明显的增强作用。

Optimization design of perovskite photovoltaic cell materials

Objective to improve the stability and conversion efficiency of perovskite solar cells. Methods of Keithley device, X-ray diffractometer, Horiba jobin Yvon system and scanning electron microscope (SEM) were used to characterize. The combination of GA Doped Perovskite photovoltaic material MA86GA14PbI3 and Ma Doped Perovskite photovoltaic material MAPBI3 were compared and analyzed with the same parameters. Through the analysis of optical, structural and morphological effects, it is found that GA can be successfully integrated into PVSK lattice. The addition of GA increases the crystallinity, which proves that the lattice expansion of perovskite cells is slight. Through PL spectrum analysis, GA shows that the SSPL strength is significantly higher than MA, and the structure of ITO / TiO2 / PVSK / Spiro-ometad / AU plane device is used to change the GA content. The results show that GA doping can enhance VOC obviously.