Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open‐Circuit Voltage
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 29, 2017
- Source ID
- 10.1002/adma.201700254
Entities
People
- Bomee Jang
- Bowei Gao
- Cheng Wang
- Gregory M Su
- Guangchao Han
- Han Young Woo
- Hao Zhang
- Harald Ade
- Huifeng Yao
- Jianhui Hou
- Junxian Hou
- Long Ye
- Runnan Yu
- Yong Cui
- Yuanping Yi
Organizations
- Chinese Academy of Sciences
- Korea University
- Lawrence Berkeley National Laboratory
- Ministry of Science and Technology of the People's Republic of China
- National Natural Science Foundation of China
- North Carolina State University
- Office of Naval Research
- United States Department of Energy
- University of Chinese Academy of Sciences