Effects of guanidinium addition to CH3NH3PbI3−xClx perovskite photovoltaic devices
Effects of guanidinium addition to CH3NH3PbI3−xClx perovskite photovoltaic devices
复制标题
添加胍对 CH3NH3PbI3−xClx 钙钛矿光伏器件的影响
DOI：
10.2109/jcersj2.18214
复制
发表时间：
2019
影响因子：
1.1
通讯作者：
T. Oku
中科院分区：
文献类型：
--
作者：
Taku Kishimoto;A. Suzuki;N. Ueoka;T. Oku
制备并表征了以CH3NH3PbI31xClx为基团的含胍[C(NH2)3，GA]的光伏器件。比较了碘化胍、甲酰胺[CH(NH_2)_2，FA]碘化物和氯化胍的相加效果。GA的加入改善了短路电流密度、开路电压、串联电阻和并联电阻。FA和GA的加入增加了短路电流密度。由于GA的加入抑制了钙钛矿层中的针孔，提高了入射光子到电流的转换效率。GA的加入提高了转换效率。X射线衍射分析表明，添加GA和FA后，钙钛矿晶体的晶格常数增大，且GA部分取代了CH3NH3-位。2019日本陶瓷学会。版权所有。
CH3NH3PbI31xClx-based photovoltaic devices with guanidinium [C(NH2)3, GA] were fabricated and characterized. The additive effects of guanidinium iodide, formamidinium [CH(NH2)2, FA] iodide, and guanidinium chloride were compared. Short-circuit current densities, open-circuit voltages, series resistances and shunt resistances were improved by the GA addition. The short-circuit current densities were increased by FA addition with GA. The incident photon-to-current conversion efficiency increased, which results from the suppression of pin-holes in perovskite layers by GA addition. The conversion efficiencies were improved by GA addition. X-ray diffraction showed that the lattice constants of the perovskite crystals increased by GA and FA addition, and that the GA substituted partially at the CH3NH3-site. ©2019 The Ceramic Society of Japan. All rights reserved.