How antisolvent miscibility affects perovskite film wrinkling and photovoltaic properties

Seul-Gi Kim, Jeong-Hyeon Kim, Philipp Ramming, Yu Zhong, Konstantin Schötz, Seok Joon Kwon, Sven Huettner, Fabian Panzer and Nam-Gyu Park ()
Additional contact information
Seul-Gi Kim: Sungkyunkwan University (SKKU)
Jeong-Hyeon Kim: Sungkyunkwan University (SKKU)
Philipp Ramming: University of Bayreuth
Yu Zhong: University of Bayreuth
Konstantin Schötz: University of Bayreuth
Seok Joon Kwon: Sungkyunkwan University (SKKU)
Sven Huettner: University of Bayreuth
Fabian Panzer: University of Bayreuth
Nam-Gyu Park: Sungkyunkwan University (SKKU)

Nature Communications, 2021, vol. 12, issue 1, 1-10

Abstract: Abstract Charge carriers’ density, their lifetime, mobility, and the existence of trap states are strongly affected by the microscopic morphologies of perovskite films, and have a direct influence on the photovoltaic performance. Here, we report on micro-wrinkled perovskite layers to enhance photocarrier transport performances. By utilizing temperature-dependent miscibility of dimethyl sulfoxide with diethyl ether, the geometry of the microscopic wrinkles of the perovskite films are controlled. Wrinkling is pronounced as temperature of diethyl ether (TDE) decreases due to the compressive stress relaxation of the thin rigid film-capped viscoelastic layer. Time-correlated single-photon counting reveals longer carrier lifetime at the hill sites than at the valley sites. The wrinkled morphology formed at TDE = 5 °C shows higher power conversion efficiency (PCE) and better stability than the flat one formed at TDE = 30 °C. Interfacial and additive engineering improve further PCE to 23.02%. This study provides important insight into correlation between lattice strain and carrier properties in perovskite photovoltaics.

Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-021-21803-2 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21803-2

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-021-21803-2

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().