A bilayer conducting polymer structure for planar perovskite solar cells with over 1,400 hours operational stability at elevated temperatures

Yicheng Zhao (), Thomas Heumueller, Jiyun Zhang, Junsheng Luo, Olga Kasian, Stefan Langner, Christian Kupfer, Bowen Liu, Yu Zhong, Jack Elia, Andres Osvet, Jianchang Wu, Chao Liu, Zhongquan Wan, Chunyang Jia, Ning Li, Jens Hauch and Christoph J. Brabec ()
Additional contact information
Yicheng Zhao: Helmholtz-Institute Erlangen-Nürnberg (HI-ERN)
Thomas Heumueller: Helmholtz-Institute Erlangen-Nürnberg (HI-ERN)
Jiyun Zhang: Helmholtz-Institute Erlangen-Nürnberg (HI-ERN)
Junsheng Luo: Friedrich‐Alexander‐Universität Erlangen‐Nürnberg
Olga Kasian: Friedrich‐Alexander‐Universität Erlangen‐Nürnberg
Stefan Langner: Helmholtz-Institute Erlangen-Nürnberg (HI-ERN)
Christian Kupfer: Friedrich‐Alexander‐Universität Erlangen‐Nürnberg
Bowen Liu: Friedrich‐Alexander‐Universität Erlangen‐Nürnberg
Yu Zhong: Friedrich‐Alexander‐Universität Erlangen‐Nürnberg
Jack Elia: Friedrich‐Alexander‐Universität Erlangen‐Nürnberg
Andres Osvet: Friedrich‐Alexander‐Universität Erlangen‐Nürnberg
Jianchang Wu: Helmholtz-Institute Erlangen-Nürnberg (HI-ERN)
Chao Liu: Friedrich‐Alexander‐Universität Erlangen‐Nürnberg
Zhongquan Wan: University of Electronic Science and Technology of China
Chunyang Jia: University of Electronic Science and Technology of China
Ning Li: Helmholtz-Institute Erlangen-Nürnberg (HI-ERN)
Jens Hauch: Helmholtz-Institute Erlangen-Nürnberg (HI-ERN)
Christoph J. Brabec: Helmholtz-Institute Erlangen-Nürnberg (HI-ERN)

Nature Energy, 2022, vol. 7, issue 2, 144-152

Abstract: Abstract The long-term stability of perovskite solar cells remains a challenge. Both the perovskite layer and the device architecture need to endure long-term operation. Here we first use a self-constructed high-throughput screening platform to find perovskite compositions stable under heat and light. Then, we use the most stable perovskite composition to investigate the stability of contact layers in solar cells. We report on the thermal degradation mechanism of transition metal oxide contact (for example, Ta-WOx/NiOx) and propose a bilayer structure consisting of acid-doped polymer stacked on dopant-free polymer as an alternative. The dopant-free polymer provides an acid barrier between the perovskite and the acid-doped polymer. The bilayer structure exhibits stable ohmic contact at elevated temperatures and buffers iodine vapours. The unencapsulated device based on the bilayer contact (with a MgF2 capping layer) retains 99% of its peak efficiency after 1,450 h of continuous operation at 65 °C in a N2 atmosphere under metal-halide lamps. The device also shows negligible hysteresis during the entire ageing period.

Date: 2022
References: Add references at CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.nature.com/articles/s41560-021-00953-z Abstract (text/html)
Access to the full text of the articles in this series is restricted.

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:natene:v:7:y:2022:i:2:d:10.1038_s41560-021-00953-z

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

DOI: 10.1038/s41560-021-00953-z

Access Statistics for this article

Nature Energy is currently edited by Fouad Khan

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