高效的电子选择层对提高有机金属卤化物基钙钛矿太阳电池的能量转换效率起着至关重要的作用.本文采用低温100°C旋转涂膜和无后续高温烧结的方法制备了高结晶度的纳米氧化锡薄膜,利用瞬态时间分辨荧光光谱测试对SnO_2/CH_3NH_3PbI_...高效的电子选择层对提高有机金属卤化物基钙钛矿太阳电池的能量转换效率起着至关重要的作用.本文采用低温100°C旋转涂膜和无后续高温烧结的方法制备了高结晶度的纳米氧化锡薄膜,利用瞬态时间分辨荧光光谱测试对SnO_2/CH_3NH_3PbI_3薄膜进行分析发现,这种低温氧化锡薄膜与相同条件下制备的低温氧化钛薄膜相比,具有更高的荧光淬灭和电子抽取能力.电流-电压曲线表明,低温氧化锡基钙钛矿太阳电池具有优异的光电转换性能,其开路电压为0.91 V,短路电流密度为20.73 mA cm^(–2),填充因子为64.25%,其器件光电转换效率达到12.10%,高于低温二氧化钛基器件的光电转换效率7.16%.上述无高温烧结的旋转涂膜方法为制备低温大面积钙钛矿太阳电池提供了一种研究思路.展开更多
基金supported by the National Key Research and Development Program of China(2016YFA0201001)National Natural Science Foundation of China(11627801,51102172)+3 种基金Science and Technology Plan of Shenzhen City(JCYJ20160331191436180)Natural Science Foundation for Outstanding Young Researcher in Hebei Province(E2016210093)the Key Program of Educational Commission of Hebei Province of China(ZD2016022)the Youth Top-notch Talents Supporting Plan of Hebei Province,Hebei Provincial Key Laboratory of Traffic Engineering materials and Hebei Key Discipline Construction Project
文摘高效的电子选择层对提高有机金属卤化物基钙钛矿太阳电池的能量转换效率起着至关重要的作用.本文采用低温100°C旋转涂膜和无后续高温烧结的方法制备了高结晶度的纳米氧化锡薄膜,利用瞬态时间分辨荧光光谱测试对SnO_2/CH_3NH_3PbI_3薄膜进行分析发现,这种低温氧化锡薄膜与相同条件下制备的低温氧化钛薄膜相比,具有更高的荧光淬灭和电子抽取能力.电流-电压曲线表明,低温氧化锡基钙钛矿太阳电池具有优异的光电转换性能,其开路电压为0.91 V,短路电流密度为20.73 mA cm^(–2),填充因子为64.25%,其器件光电转换效率达到12.10%,高于低温二氧化钛基器件的光电转换效率7.16%.上述无高温烧结的旋转涂膜方法为制备低温大面积钙钛矿太阳电池提供了一种研究思路.
基金the financial support from the National Key Research and Development Program of China(2016YFA0201001)the National Natural Science Foundation of China(11627801,51102172 and 11772207)+7 种基金Science and Technology Plan of Shenzhen City(JCYJ20160331191436180)the Leading Talents of Guangdong Province Program(2016LJ06C372)the Natural ScienceFoundation for Outstanding Young Researcher in Hebei Province(E2016210093)the Key Program of Educational Commission of Hebei Province of China(ZD2016022)the Youth Top-notch Talents Supporting Plan of Hebei Provincethe Graduate Innovation Foundation of Shijiazhuang Tiedao UniversityHebei Provincial Key Laboratory of Traffic Engineering materialsHebei Key Discipline Construction Project