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Zwitter-Ionic Polymer Applied as Electron Transportation Layer for Improving the Performance of Polymer Solar Cells

College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
Authors to whom correspondence should be addressed.
Polymers 2017, 9(11), 566;
Received: 2 October 2017 / Revised: 24 October 2017 / Accepted: 27 October 2017 / Published: 1 November 2017
(This article belongs to the Special Issue Polymer Solar Cells)
PDF [1763 KB, uploaded 1 November 2017]


A zwitter-ionic polymer poly (sulfobetaine methacrylate) (denoted by PSBMA) was employed as an electron transportation layer (ETL) in polymer solar cells (PSCs) based on poly(3-hexylthiophene) (P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PC61BM). PSBMA is highly soluble in trifluoroethanol, showing an orthogonal solubility to the solvent of the active layer in the preparation of multilayered PSCs. Upon introduction of PSBMA, the short circuit current and as a consequence the power conversion efficiency of the corresponding PSCs are dramatically improved, which can be because of the relatively high polarity of PSBMA compared with the other ETLs. This study demonstrated that zwitter-ionic polymer should be a competitive potential candidate of ETLs in PSCs. View Full-Text
Keywords: PSBMA; betaine; zwitter-ionic polymer; ETL PSBMA; betaine; zwitter-ionic polymer; ETL

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Chen, Q.; Li, Z.; Dong, B.; Zhou, Y.; Song, B. Zwitter-Ionic Polymer Applied as Electron Transportation Layer for Improving the Performance of Polymer Solar Cells. Polymers 2017, 9, 566.

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