Ternary organic solar cells with enhanced open circuit voltage
Wang, Chuanfei ; Xu, Xiaofeng ; Zhang, Wei LU ; Dkhil, Sadok Ben ; Meng, Xiangyi ; Liu, Xianjie ; Margeat, Olivier ; Yartsev, Arkady LU
; Ma, Wei
and Ackermann, Jörg
, et al.
(2017)
In Nano Energy
37.
p.24-31
- Abstract
By introducing a non-fullerene small molecule acceptor as a third component to typical polymer donor: fullerene acceptor binary solar cells, we demonstrate that the short circuit current density (Jsc), open circuit voltage (Voc), power conversion efficiency (PCE) and thermal stability can be enhanced simultaneously. The different surface energy of each component causes most of the non-fullerene acceptor molecules to self-organize at the polymer/fullerene interface, while the appropriately selected oxidation/reduction potential of the non-fullerene acceptor enables the resulting ternary junction to work through a cascade mechanism. The cascade ternary junction enhances charge generation through complementary... (More)
By introducing a non-fullerene small molecule acceptor as a third component to typical polymer donor: fullerene acceptor binary solar cells, we demonstrate that the short circuit current density (Jsc), open circuit voltage (Voc), power conversion efficiency (PCE) and thermal stability can be enhanced simultaneously. The different surface energy of each component causes most of the non-fullerene acceptor molecules to self-organize at the polymer/fullerene interface, while the appropriately selected oxidation/reduction potential of the non-fullerene acceptor enables the resulting ternary junction to work through a cascade mechanism. The cascade ternary junction enhances charge generation through complementary absorption between the non-fullerene and fullerene acceptors and aids the efficient charge extraction from fullerene domains. The bimolecular recombination in the ternary blend layer is reduced as the ternary cascade junction increases the separation of holes and electrons during charge transportation and the trap assistant recombination induced by integer charge transfer (ICT) state potentially reduced due to the smaller pinning energy of inserted non-fullerene acceptor, leading to an unprecedented increase in the open circuit voltage beyond the binary reference values.
(Less)
- author
- Wang, Chuanfei
; Xu, Xiaofeng
; Zhang, Wei
LU
; Dkhil, Sadok Ben
; Meng, Xiangyi
; Liu, Xianjie
; Margeat, Olivier
; Yartsev, Arkady
LU
; Ma, Wei
and Ackermann, Jörg
, et al. (More)
- Wang, Chuanfei
; Xu, Xiaofeng
; Zhang, Wei
LU
; Dkhil, Sadok Ben
; Meng, Xiangyi
; Liu, Xianjie
; Margeat, Olivier
; Yartsev, Arkady
LU
; Ma, Wei
; Ackermann, Jörg
; Wang, Ergang
and Fahlman, Mats
(Less)
- organization
- publishing date
- 2017-07-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Generality, Higher open circuit voltage, More thermal stable, Self-organization, Ternary organic solar cell
- in
- Nano Energy
- volume
- 37
- pages
- 8 pages
- publisher
- Elsevier
- external identifiers
-
- wos:000402704500004
- scopus:85018743469
- ISSN
- 2211-2855
- DOI
- 10.1016/j.nanoen.2017.04.060
- language
- English
- LU publication?
- yes
- id
- d47a49bf-3846-4c17-9c61-bbeeccb57a9c
- date added to LUP
- 2017-05-23 14:25:57
- date last changed
- 2025-01-07 14:02:21
@article{d47a49bf-3846-4c17-9c61-bbeeccb57a9c,
abstract = {{<p>By introducing a non-fullerene small molecule acceptor as a third component to typical polymer donor: fullerene acceptor binary solar cells, we demonstrate that the short circuit current density (J<sub>sc</sub>), open circuit voltage (V<sub>oc</sub>), power conversion efficiency (PCE) and thermal stability can be enhanced simultaneously. The different surface energy of each component causes most of the non-fullerene acceptor molecules to self-organize at the polymer/fullerene interface, while the appropriately selected oxidation/reduction potential of the non-fullerene acceptor enables the resulting ternary junction to work through a cascade mechanism. The cascade ternary junction enhances charge generation through complementary absorption between the non-fullerene and fullerene acceptors and aids the efficient charge extraction from fullerene domains. The bimolecular recombination in the ternary blend layer is reduced as the ternary cascade junction increases the separation of holes and electrons during charge transportation and the trap assistant recombination induced by integer charge transfer (ICT) state potentially reduced due to the smaller pinning energy of inserted non-fullerene acceptor, leading to an unprecedented increase in the open circuit voltage beyond the binary reference values.</p>}},
author = {{Wang, Chuanfei and Xu, Xiaofeng and Zhang, Wei and Dkhil, Sadok Ben and Meng, Xiangyi and Liu, Xianjie and Margeat, Olivier and Yartsev, Arkady and Ma, Wei and Ackermann, Jörg and Wang, Ergang and Fahlman, Mats}},
issn = {{2211-2855}},
keywords = {{Generality; Higher open circuit voltage; More thermal stable; Self-organization; Ternary organic solar cell}},
language = {{eng}},
month = {{07}},
pages = {{24--31}},
publisher = {{Elsevier}},
series = {{Nano Energy}},
title = {{Ternary organic solar cells with enhanced open circuit voltage}},
url = {{http://dx.doi.org/10.1016/j.nanoen.2017.04.060}},
doi = {{10.1016/j.nanoen.2017.04.060}},
volume = {{37}},
year = {{2017}},
}