2024-03-29T13:29:14Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00029316
2023-01-16T04:29:11Z
1939:1940:1941
Controlled Redox of Lithium-Ion Endohedral Fullerene for Efficient and Stable Metal Electrode-Free Perovskite Solar Cells
Jeon, Il
96000
Shawky, Ahmed
96001
Lin, Hao-Sheng
96002
Seo, Seungju
96003
Okada, Hiroshi
96004
Lee, Jin-Wook
96005
Pal, Amrita
96006
Tan, Shaun
96007
Anisimov, Anton
96008
Kauppinen, Esko I.
96009
Yang, Yang
96010
Manzhos, Sergei
96011
Maruyama, Shigeo
96012
Matsuo, Yutaka
96013
Endohedral Fullerene
Metallofullerene
Carbon Nanotube
Perovskite Solar Cells
Stability of Solar Cells
High efficiency perovskite solar cells have underpinned the rapid growth of the field. However, their low device stability limits further advancement. Hygroscopic lithium bis(trifluoromethanesulfonyl)imide (Li^+TFSI^–) and metal electrode are the main causes of the device instability. In this work, the redox reaction between lithium-ion endohedral fullerenes and 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobi-fluorene (spiro-MeOTAD) was controlled to optimize the amount of oxidized spiro-MeOTAD and antioxidizing neutral endohedral fullerenes. Application of this mixture to metal-free carbon nanotube (CNT)-laminated perovskite solar cells resulted in 17.2% efficiency with a stability time of more than 1100 h under severe conditions (temperature = 60 °C, humidity = 70%). Such high performance is attributed to the uninhibited charge flow, no metal-ion migration, and the enhanced antioxidizing activity of the devices.
ファイル公開:2020-10-23
journal article
ACS Publications
2019-10-23
application/pdf
Journal of the American Chemical Society
42
141
16553
16558
0002-7863
https://nagoya.repo.nii.ac.jp/record/29316/files/LiC60TFSI CNT MS JACS revised 2.pdf
eng
https://doi.org/10.1021/jacs.9b06418
“This document is the Accepted Manuscript version of a Published Work that appeared in final form in [Journal of the American Chemical Society], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [https://pubs.acs.org/articlesonrequest/AOR-xJzrWDW3Dsxtz4c5gPGA].”