Molecular Lock: A Versatile Key to Enhance Efficiency and Stability of Organic Solar Cells

Pei Cheng; Cenqi Yan; Tsz-Ki Lau; Jiangquan Mai; Xinhui Lu; Xiaowei Zhan

doi:10.1002/adma.201600426

Molecular Lock: A Versatile Key to Enhance Efficiency and Stability of Organic Solar Cells

Adv Mater. 2016 Jul;28(28):5822-9. doi: 10.1002/adma.201600426. Epub 2016 May 9.

Authors

Pei Cheng^{1

2}, Cenqi Yan³, Tsz-Ki Lau⁴, Jiangquan Mai⁴, Xinhui Lu⁴, Xiaowei Zhan³

Affiliations

¹ Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
² University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
³ Department of Materials Science and Engineering, College of Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing, 100871, P. R. China.
⁴ Department of Physics, Chinese University of Hong Kong, New Territories, Hong Kong, P. R. China.

PMID: 27158774
DOI: 10.1002/adma.201600426

Abstract

4,4'-Biphenol (BPO), a common, cheap chemical, is employed as a "molecular lock" in blends of fluorine-containing polymer or small molecule donors and fullerene acceptors to lock donors via hydrogen bond formed between the donor and BPO. The molecular lock is a versatile key to enhance the efficiency and stability of organic solar cells simultaneously.

Keywords: hydrogen bonds; molecular locks; organic solar cells; stability; ternary blends.