Overcoming ionic migration in perovskite solar cells through alkali metals

被引:36
作者
Aranda, Clara A. [1 ,3 ]
Alvarez, Agustin O. [2 ,3 ]
Chivrony, Vladimir S. [4 ]
Das, Chittaranjan [1 ]
Rai, Monika [1 ]
Saliba, Michael [1 ,2 ]
机构
[1] Univ Stuttgart, Inst Photovolta ipv, D-70569 Stuttgart, Germany
[2] Forschungszentrum Julich, IEK5 Photovolta, D-52425 Julich, Germany
[3] Univ Jaume 1, Inst Adv Mat, Ave Vicent Sos Baynat S-N, Castellon de La Plana 12006, Spain
[4] Univ Valencia, Inst Ciencia Mat ICMUV, C-Catedrat Jose Beltran 2, Valencia 46980, Spain
基金
欧盟地平线“2020”;
关键词
HYSTERESIS; POLARIZATION; IMPEDANCE; CATIONS;
D O I
10.1016/j.joule.2023.11.011
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Alkali metals, as additives in perovskite solar cells (PSCs), have been extensively investigated for their impact on performance enhancement. This performance is sensitive to ion -driven interfacial recombination processes that lead to voltage losses and perform with negative capacitance features in impedance spectroscopy (IS). In this study, we exploited negative capacitance as a tool to systematically investigate the influence of Li, Na, and K on the photovoltage of the wide band -gap material MAPbBr3, known for historical photovoltage losses. Sodium cations were found to mitigate adverse interfacial recombination pathways, yielding a remarkable stabilized open -circuit potential of 1.65 V. Impedance measurements indicated sodium significant influence within the material's bulk, corroborated by time -of -flight secondary ion mass spectrometry and X-ray photoelectron spectroscopy. These techniques confirmed the ability of Na to decrease ionic migration in perovskite materials. X-ray photoelectron spectroscopy (XPS) revealed the underlying mechanism by which Na accomplishes this task: through an electrostatic interaction with the organic compounds.
引用
收藏
页码:241 / 254
页数:15
相关论文
共 38 条
[1]   Capacitive Dark Currents, Hysteresis, and Electrode Polarization in Lead Halide Perovskite Solar Cells [J].
Almora, Osbel ;
Zarazua, Isaac ;
Mas-Marza, Elena ;
Mora-Sero, Ivan ;
Bisquert, Juan ;
Garcia-Belmonte, Germa .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2015, 6 (09) :1645-1652
[2]   Negative Capacitance and Inverted Hysteresis: Matching Features in Perovskite Solar Cells [J].
Alvarez, Agustin O. ;
Arcas, Ramon ;
Aranda, Clara A. ;
Bethencourt, Loengrid ;
Mas-Marza, Elena ;
Saliba, Michael ;
Fabregat-Santiago, Francisco .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2020, 11 (19) :8417-8423
[3]   Ionic Effect Enhances Light Emission and the Photovoltage of Methylammonium Lead Bromide Perovskite Solar Cells by Reduced Surface Recombination [J].
Aranda, Clara ;
Guerrero, Antonio ;
Bisquert, Juan .
ACS ENERGY LETTERS, 2019, 4 (03) :741-746
[4]   Physical Model for the Current-Voltage Hysteresis and Impedance of Halide Perovskite Memristors [J].
Berruet, Mariana ;
Carlos Perez-Martinez, Jose ;
Romero, Beatriz ;
Gonzales, Cedric ;
Al-Mayouf, Abdullah M. ;
Guerrero, Antonio ;
Bisquert, Juan .
ACS ENERGY LETTERS, 2022, 7 (03) :1214-1222
[5]   Influence of the boundaries in the impedance of porous film electrodes [J].
Bisquert, J .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2000, 2 (18) :4185-4192
[7]  
Bisquert J, 2016, RSC ENERGY ENVIRON S, P57
[8]   Interstitial Occupancy by Extrinsic Alkali Cations in Perovskites and Its Impact on Ion Migration [J].
Cao, Jie ;
Tao, Shu Xia ;
Bobbert, Peter A. ;
Wong, Ching-Ping ;
Zhao, Ni .
ADVANCED MATERIALS, 2018, 30 (26)
[9]   Eppur si Muove: Proton Diffusion in Halide Perovskite Single Crystals [J].
Ceratti, Davide Raffaele ;
Zohar, Arava ;
Kozlov, Roman ;
Dong, Hao ;
Uraltsev, Gennady ;
Girshevitz, Olga ;
Pinkas, Iddo ;
Avram, Liat ;
Hodes, Gary ;
Cahen, David .
ADVANCED MATERIALS, 2020, 32 (46)
[10]   Impact of Capacitive Effect and Ion Migration on the Hysteretic Behavior of Perovskite Solar Cells [J].
Chen, Bo ;
Yang, Mengjin ;
Zheng, Xiaojia ;
Wu, Congcong ;
Li, Wenle ;
Yan, Yongke ;
Bisquert, Juan ;
Garcia-Belmonte, Germa ;
Zhu, Kai ;
Priya, Shashank .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2015, 6 (23) :4693-4700