TY - JOUR
T1 - Improved interfacial adhesion for stable flexible inverted perovskite solar cells
AU - Dou, Jie
AU - Song, Qizhen
AU - Ma, Yue
AU - Wang, Hao
AU - Yuan, Guizhou
AU - Wei, Xueyuan
AU - Niu, Xiuxiu
AU - Ma, Sai
AU - Yang, Xiaoyan
AU - Dou, Jing
AU - Liu, Shaocheng
AU - Zhou, Huanping
AU - Zhu, Cheng
AU - Chen, Yihua
AU - Li, Yujing
AU - Bai, Yang
AU - Chen, Qi
N1 - Publisher Copyright:
© 2022
PY - 2023/1
Y1 - 2023/1
N2 - Flexible perovskite solar cells have attracted widespread attention due to their unique advantages in lightweight, high flexibility, and easy deformation, which are suitable for portable electronics. However, the inverted (p-i-n) structured devices suffer from poor stability largely due to the low adhesion at the brittle interface (the hole transport layer/perovskite). Herein, zeolitic imidazolate framework-67 (ZIF-67) is applied to inverted structured cells to optimize the interface and prolong the device lifetime. As a result, the flexible devices based on ZIF-67 obtain the champion power conversion efficiency of 20.16%. Over 1000 h under continuous light irradiation, the device retains 96% and 80% of its original efficiency without and with bias, respectively. Notably, devices show mechanical endurance with over 78% efficiency retention after 10,000 cycles of consecutive bending cycles (R = 6 mm). The introduction of ZIF-67 suppresses the cracking in device bending, which results in improved environmental stability and bending durability.
AB - Flexible perovskite solar cells have attracted widespread attention due to their unique advantages in lightweight, high flexibility, and easy deformation, which are suitable for portable electronics. However, the inverted (p-i-n) structured devices suffer from poor stability largely due to the low adhesion at the brittle interface (the hole transport layer/perovskite). Herein, zeolitic imidazolate framework-67 (ZIF-67) is applied to inverted structured cells to optimize the interface and prolong the device lifetime. As a result, the flexible devices based on ZIF-67 obtain the champion power conversion efficiency of 20.16%. Over 1000 h under continuous light irradiation, the device retains 96% and 80% of its original efficiency without and with bias, respectively. Notably, devices show mechanical endurance with over 78% efficiency retention after 10,000 cycles of consecutive bending cycles (R = 6 mm). The introduction of ZIF-67 suppresses the cracking in device bending, which results in improved environmental stability and bending durability.
KW - Flexible perovskite solar cells
KW - Interfacial adhesion
KW - Stability
KW - ZIF-67
UR - http://www.scopus.com/inward/record.url?scp=85140308427&partnerID=8YFLogxK
U2 - 10.1016/j.jechem.2022.09.044
DO - 10.1016/j.jechem.2022.09.044
M3 - Article
AN - SCOPUS:85140308427
SN - 2095-4956
VL - 76
SP - 288
EP - 294
JO - Journal of Energy Chemistry
JF - Journal of Energy Chemistry
ER -