Changes in the Electrical Characteristics of Perovskite Solar Cells with Aging Time.

ABSTRACT: The last decade has witnessed the impressive progress of perovskite solar cells (PSCs), with power conversion efficiency exceeding 25%. Nevertheless, the unsatisfactory device stability and current-voltage hysteresis normally observed with most PSCs under operational conditions are bottlenecks that hamper their further commercialization. Understanding the electrical characteristics of the device during the aging process is important for the design and development of effective strategies for the fabrication of stable PSCs. Herein, electrochemical impedance spectroscopical (IS) analyses are used to study the time-dependent electrical characteristics of PSC. We demonstrate that both the dark and light ideality factors are sensitive to aging time, indicating the dominant existence of trap-assi

SUBMITTER: Mahapatra A 

PROVIDER: S-EPMC7288190 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature