Affiliation:
1. Institute of New Energy Technology College of Physics & Optoelectronic Engineering, and Guangdong Engineering Research Center of Thin‐Film Photovoltaic Processes and Equipment Jinan University Guangzhou 510632 China
2. Guangdong Mellow Energy Co., Ltd Guangzhou 510630 China
Abstract
AbstractFlexible perovskite photovoltaic cells (f‐PPCs) have demonstrated enormous potential in portable electronics due to the high power‐to‐weight ratio characteristic in outdoor and indoor ambient environment. However, the inherent mechanical endurance of f‐PPCs remains a major concern. Inspired by industrial strong adhesion coatings, herein, a porous nanoparticle layer is inserted into the buried interface of the perovskite layer to regulate the interfacial adhesion with a smooth hole transporting layer (HTL). As a result, the f‐PPCs realizes retaining over 80% of original efficiency after 2000 in‐plane bending cycles with the narrow radius of 4 mm. Furthermore, a certified record efficiency of 20.20% is achieved for flexible perovskite solar module, as well as the record efficiency of 31.69% for flexible perovskite indoor photovoltaic module (LED, 1000 lux).
Funder
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Subject
Electrochemistry,Condensed Matter Physics,Biomaterials,Electronic, Optical and Magnetic Materials