Boosting stability of inverted perovskite solar cells with magnetron-sputtered molybdenum rear electrodes  

作　　者：Zhao-Yi Jiang Ming Pan Fu-Meng Ren Rui Chen Zhen-Xing Sun Zhi-Chun Yang Zong-Hao Liu Wei Chen 

机构地区：[1]Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,430074,China [2]Optics Valley Laboratory,Hubei,430074,China [3]C Innovation Laboratory,Contemporary Amperex Technology Ltd.,Ningde,352100,China [4]State Key Lab of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan,030006,China [5]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan,030006,China

出　　处：《Rare Metals》2023年第11期3741-3754,共14页稀有金属（英文版）

基　　金：financially supported by the National Key Research and Development Project funding from the Ministry of Science and Technology of China (No.2021YFB3800104);the National Natural Science Foundation of China (Nos.52002140,U20A20252,62205187 and 21C-OP-202206);the Young Elite Scientists Sponsorship Program by CAST;the Selfdetermined and Innovative Research Funds of HUST (No.2020kfy XJJS008);the Natural Science Foundation of Hubei Province (No.2022CFA093);the Fundamental Research Program of Shanxi Province (No.202103021223032);the Innovation Project of Optics Valley Laboratory (No.OVL2021BG008)。

摘　　要：Perovskite solar cells(PSCs)have attracted widespread attention because of their remarkable efficiency,low cost,and ease of fabrication.However,the operational stability of the PSCs still suffers from the corrosion of metal electrodes induced by metal-halide reactions.Herein,we propose a feasible strategy for improving the stability of inverted PSCs by using magnetron-sputtered Mo rear electrodes.Coupled with a bismuth(Bi)buffer layer prepared by thermal evaporation,the damage from the magnetron sputtering process toward the underlayers can be effectively relieved.Consequently,based on the Bi+Mo bilayer electrode,the inverted PSCs with a NiMgLiO hole transport layer exhibited a power conversion efficiency(PCE)of 18.82%.In addition to their excellent stability at high temperatures,compact Mo films can inhibit the decomposition of Perovskite(Pvk)films in the devices.The PSCs with the Bi/Mo bilayer electrode maintained 97.9%of its initial efficiency,showing better stability than PSCs with the traditional Ag electrode after aging for 3000 h under continuous light illumination.

关 键 词：Perovskite solar cells(PSCs) Magnetron sputtering Rear electrodes MOLYBDENUM STABILITY 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TB383.2[一般工业技术—材料科学与工程]