Search: onr:"swepub:oai:research.chalmers.se:fdad4317-3923-4020-b6f6-3f81d8695fcb" >
Axisymmetric and As...
Axisymmetric and Asymmetric Naphthalene-Bisthienothiophene Based Nonfullerene Acceptors: On Constitutional Isomerization and Photovoltaic Performance
-
- Hu, Wei (author)
- Hunan University of Science and Technology
-
- Du, Xiaoyan (author)
- Hunan University of Science and Technology
-
- Zhuang, Wenliu, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
show more...
-
- Su, Wenyan (author)
- Soochow University
-
- Cao, Jiamin, 1986 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Pourrahimi, Amir Masoud, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Li, Ning (author)
- Helmholtz Zentrum,Helmholtz Center
-
- Shen, Xingxing (author)
- Hebei University of Technology
-
- Zhang, Maojie (author)
- Soochow University
-
- Yu, Donghong (author)
- Aalborg Universitet,Aalborg University
-
- Gruber, Wolfgang (author)
- Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
-
- Unruh, Tobias (author)
- Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
-
- Wang, Ergang, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Brabec, Christoph J. (author)
- Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
-
show less...
-
(creator_code:org_t)
- 2020-05-05
- 2020
- English.
-
In: ACS Applied Energy Materials. - : American Chemical Society (ACS). - 2574-0962. ; 3:6, s. 5734-5744
- Related links:
-
https://research.cha...
-
show more...
-
https://doi.org/10.1...
-
https://research.cha...
-
https://research.cha...
-
show less...
Abstract
Subject headings
Close
- Two pairs of constitutional isomers of fused-octacyclic nonfullerene acceptors (NFAs) based on a naphthalene-bisthienothiophene core with or without fluorination at the ending groups have been developed. Compared with the axisymmetric NFAs N66-IC and N66-2FIC with two six-member-ring bridges, their asymmetric constitutional isomers N65-IC and N65-2FIC both with one six-member-ring bridge and one five-member-ring bridge exhibit remarkable red-shifted absorption, higher crystallinity, and slightly down-shifted LUMO energy levels. Organic solar cells based on PBDB-T-2F:N65-2FIC achieved a promising power conversion efficiency of 10.19%, which is three times higher than that of its counterpart PBDB-T-2F:N66-2FIC cell (3.46%). While being blended with PBDB-T as the donor material, the asymmetric acceptor analogue N65-IC based solar cell pronounces a PCE of 9.03%, being significantly improved from that of 5.45% for the PBDB-T:N66-IC based cell, which is in consistency with the results from those cells from their both fluorinated donor and acceptor counterparts. Design rules on either both fluorinated, both nonfluorinated, or cross-combined donor/acceptors for device fabrication has been explored. In addition, PBDB-T-2F:N65-2FIC possesses very promising device stability with 85% of its initial PCE after an exposure time of 1500 h under one sun illumination, which is meaningful for their future commercial devices.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Hu, Wei
-
Du, Xiaoyan
-
Zhuang, Wenliu, ...
-
Su, Wenyan
-
Cao, Jiamin, 198 ...
-
Pourrahimi, Amir ...
-
show more...
-
Li, Ning
-
Shen, Xingxing
-
Zhang, Maojie
-
Yu, Donghong
-
Gruber, Wolfgang
-
Unruh, Tobias
-
Wang, Ergang, 19 ...
-
Brabec, Christop ...
-
show less...
- About the subject
-
- ENGINEERING AND TECHNOLOGY
-
ENGINEERING AND ...
-
and Materials Engine ...
-
- ENGINEERING AND TECHNOLOGY
-
ENGINEERING AND ...
-
and Nano technology
- Articles in the publication
-
ACS Applied Ener ...
- By the university
-
Chalmers University of Technology