MIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

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

Author(s)
Mahapatra, Apurba; Parikh, Nishi; Kumar, Pawan; Kumar, Manoj; Prochowicz, Daniel; Kalam, Abul; Tavakoli, Mohammad Mahdi; Yadav, Pankaj; ... Show more Show less
Thumbnail
Downloadmolecules-25-02299.pdf (2.031Mb)
Publisher with Creative Commons License

Publisher with Creative Commons License

Creative Commons Attribution

Terms of use
Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/
Metadata
Show full item record
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-assisted recombination in the investigated device. By analyzing the capacitance versus frequency responses, we show that the low-frequency capacitance increases with increasing aging time due to the accumulation of charges or ions at the interfaces. These results are correlated with the observed hysteresis during the current–voltage measurement and provide an in-depth understanding of the degradation mechanism of PSCs with aging time.
Date issued
2020-05
URI
https://hdl.handle.net/1721.1/125417
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
Molecules
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Mahapatra, Apurba, et al. "Changes in the Electrical Characteristics of Perovskite Solar Cells with Aging Time." Molecules, 25 (May 2020): 2299. © 2020 the Author(s)
Version: Final published version
ISSN
1420-3049

Collections
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries
PrivacyPermissionsAccessibilityContact us
MIT
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.