Abstract
A new acceptor–donor–acceptor-structured nonfullerene acceptor ITCC (3,9-bis(4-(1,1-dicyanomethylene)-3-methylene-2-oxo-cyclopenta[b]thiophen)-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d′:2,3-d′]-s-indaceno[1,2-b:5,6-b′]-dithiophene) is designed and synthesized via simple end-group modification. ITCC shows improved electron-transport properties and a high-lying lowest unoccupied molecular orbital level. A power conversion efficiency of 11.4% with an impressive V OC of over 1 V is recorded in photovoltaic devices, suggesting that ITCC has great potential for applications in tandem organic solar cells.
| Original language | English |
|---|---|
| Article number | 1700254 |
| Journal | Advanced Materials |
| Volume | 29 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 2017 Jun 6 |
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Keywords
- end-group modification
- intermolecular π–π stacking
- molecular energy levels
- nonfullerene acceptors
- organic solar cells
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage. / Yao, Huifeng; Ye, Long; Hou, Junxian; Jang, Bomee; Han, Guangchao; Cui, Yong; Su, Gregory M.; Wang, Cheng; Gao, Bowei; Yu, Runnan; Zhang, Hao; Yi, Yuanping; Woo, Han Young; Ade, Harald; Hou, Jianhui.
In: Advanced Materials, Vol. 29, No. 21, 1700254, 06.06.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage
AU - Yao, Huifeng
AU - Ye, Long
AU - Hou, Junxian
AU - Jang, Bomee
AU - Han, Guangchao
AU - Cui, Yong
AU - Su, Gregory M.
AU - Wang, Cheng
AU - Gao, Bowei
AU - Yu, Runnan
AU - Zhang, Hao
AU - Yi, Yuanping
AU - Woo, Han Young
AU - Ade, Harald
AU - Hou, Jianhui
PY - 2017/6/6
Y1 - 2017/6/6
N2 - A new acceptor–donor–acceptor-structured nonfullerene acceptor ITCC (3,9-bis(4-(1,1-dicyanomethylene)-3-methylene-2-oxo-cyclopenta[b]thiophen)-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d′:2,3-d′]-s-indaceno[1,2-b:5,6-b′]-dithiophene) is designed and synthesized via simple end-group modification. ITCC shows improved electron-transport properties and a high-lying lowest unoccupied molecular orbital level. A power conversion efficiency of 11.4% with an impressive V OC of over 1 V is recorded in photovoltaic devices, suggesting that ITCC has great potential for applications in tandem organic solar cells.
AB - A new acceptor–donor–acceptor-structured nonfullerene acceptor ITCC (3,9-bis(4-(1,1-dicyanomethylene)-3-methylene-2-oxo-cyclopenta[b]thiophen)-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d′:2,3-d′]-s-indaceno[1,2-b:5,6-b′]-dithiophene) is designed and synthesized via simple end-group modification. ITCC shows improved electron-transport properties and a high-lying lowest unoccupied molecular orbital level. A power conversion efficiency of 11.4% with an impressive V OC of over 1 V is recorded in photovoltaic devices, suggesting that ITCC has great potential for applications in tandem organic solar cells.
KW - end-group modification
KW - intermolecular π–π stacking
KW - molecular energy levels
KW - nonfullerene acceptors
KW - organic solar cells
UR - http://www.scopus.com/inward/record.url?scp=85016824110&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85016824110&partnerID=8YFLogxK
U2 - 10.1002/adma.201700254
DO - 10.1002/adma.201700254
M3 - Article
AN - SCOPUS:85016824110
VL - 29
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
IS - 21
M1 - 1700254
ER -