Frontiers of Optoelectronics, 2017, 10 (2): 103, 网络出版: 2018-01-17
Hole-transporting layer-free inverted planar mixed lead-tin perovskite-based solar cells
Hole-transporting layer-free inverted planar mixed lead-tin perovskite-based solar cells
摘要
Abstract
Mixed lead-tin (Pb-Sn) perovskites present a promising strategy to extend the light-harvesting range of perovskite-based solar cells (PSCs). The use of electrontransporting layer or hole-transporting layer (HTL) is critical to achieve high device efficiency. This strategy, however, requires tedious layer-by-layer fabrication as well as high-temperature annealing for certain oxides. In this work, we fabricated HTL-free planar FAPb0.5Sn0.5I3 PSCs with the highest efficiency of 7.94%. High shortcircuit current density of 23.13 mA/cm2 was attained, indicating effective charge extraction at the ITO/ FAPb0.5Sn0.5I3 interface. This finding provides an alternative strategy to simplify the manufacture of singlejunction or tandem PSCs.
Yuqin LIAO, Xianyuan JIANG, Wenjia ZHOU, Zhifang SHI, Binghan LI, Qixi MI, Zhijun NING. Hole-transporting layer-free inverted planar mixed lead-tin perovskite-based solar cells[J]. Frontiers of Optoelectronics, 2017, 10(2): 103. Yuqin LIAO, Xianyuan JIANG, Wenjia ZHOU, Zhifang SHI, Binghan LI, Qixi MI, Zhijun NING. Hole-transporting layer-free inverted planar mixed lead-tin perovskite-based solar cells[J]. Frontiers of Optoelectronics, 2017, 10(2): 103.