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Functional ZnO/TiO2 Bilayer as Electron Transport Material for Solution‐Processed Sb2S3 Solar Cells
Solar RRL ( IF 7.9 ) Pub Date : 2021-01-14 , DOI: 10.1002/solr.202000764 Agustin Baron Jaimes 1 , Oscar Andrés Jaramillo-Quintero 1, 2 , Ramses Alejandro Miranda Gamboa 1 , Ariosto Medina-Flores 3 , Marina Elizabeth Rincon 1
Solar RRL ( IF 7.9 ) Pub Date : 2021-01-14 , DOI: 10.1002/solr.202000764 Agustin Baron Jaimes 1 , Oscar Andrés Jaramillo-Quintero 1, 2 , Ramses Alejandro Miranda Gamboa 1 , Ariosto Medina-Flores 3 , Marina Elizabeth Rincon 1
Affiliation
Electron transport materials (ETMs) are considered a keystone component of third‐generation solar cells. Among the alternative ETM, metal oxide bilayers have attracted increasing attention due to their easy processing and tunability of cascade energy alignment. Herein, a metal oxide bilayer that combines ZnO and TiO2 compact films (ZnO/TiO2) is implemented as ETM for solution‐processed Sb2S3 planar solar cells. The bilayer ETM achieves the highest photovoltaic performance when compared with devices based on single ETM. Thus, the optimized device based on ZnO/TiO2 ETM yields a champion efficiency of 5.08% with an open‐circuit voltage of 0.58 V and a current density of 16.17 mA cm−2. Using surface photovoltage, electrochemical impedance spectroscopy, and current density–voltage analyses, it is demonstrated that the use of ZnO/TiO2 promotes charge injection, decreases series resistance and shutting paths, and leads to the reduction of charge recombination at the ETM/Sb2S3 interface.
中文翻译:
功能性ZnO / TiO2双层作为溶液处理Sb2S3太阳能电池的电子传输材料
电子传输材料(ETM)被认为是第三代太阳能电池的主要组成部分。在替代的ETM中,金属氧化物双层由于其易于加工和级联能量对准的可调性而引起了越来越多的关注。在本文中,将结合了ZnO和TiO 2致密膜(ZnO / TiO 2)的金属氧化物双层作为ETM用于溶液处理的Sb 2 S 3平面太阳能电池。与基于单个ETM的设备相比,双层ETM具有最高的光伏性能。因此,基于ZnO / TiO 2 ETM的优化器件在开路电压为0.58 V且电流密度为16.17 mA cm -2的情况下可产生5.08%的最佳效率。。使用表面光电压,电化学阻抗谱和电流密度-电压分析,结果表明,ZnO / TiO 2的使用可促进电荷注入,减少串联电阻和闭合路径,并导致ETM / Sb处的电荷复合减少2 S 3接口。
更新日期:2021-03-10
中文翻译:
功能性ZnO / TiO2双层作为溶液处理Sb2S3太阳能电池的电子传输材料
电子传输材料(ETM)被认为是第三代太阳能电池的主要组成部分。在替代的ETM中,金属氧化物双层由于其易于加工和级联能量对准的可调性而引起了越来越多的关注。在本文中,将结合了ZnO和TiO 2致密膜(ZnO / TiO 2)的金属氧化物双层作为ETM用于溶液处理的Sb 2 S 3平面太阳能电池。与基于单个ETM的设备相比,双层ETM具有最高的光伏性能。因此,基于ZnO / TiO 2 ETM的优化器件在开路电压为0.58 V且电流密度为16.17 mA cm -2的情况下可产生5.08%的最佳效率。。使用表面光电压,电化学阻抗谱和电流密度-电压分析,结果表明,ZnO / TiO 2的使用可促进电荷注入,减少串联电阻和闭合路径,并导致ETM / Sb处的电荷复合减少2 S 3接口。