Efficiency exceeding 10% for inverted polymer solar cells with a ZnO/ionic liquid combined cathode interfacial layer

W. Yu, L. Huang, D. Yang, P. Fu, L. Zhou, J. Zhang, C. Li

Research output: Contribution to journalArticle

127 Citations (Scopus)

Abstract

The interlayer inserted between the active layer and ITO has been demonstrated to be crucial for the performance of inverted polymer solar cells (i-PSCs). In this work, we find that ionic liquids (ILs) can significantly enhance the efficiency of i-PSCs. With the ZnO/IL interfacial layer, PTB7-Th:PC71BM i-PSCs can exhibit a champion power conversion efficiency (PCE) of 10.15%, which is among the highest PCEs reported thus far for single-junction bulk heterojunction solar cells through the solution process. The IL layer and ZnO/IL combination layer with low work function, good optical transmittance, improved electron extraction and reduced resistance at the cathode interface have been demonstrated to be excellent and general interfacial layers for i-PSCs.

Original languageEnglish (US)
Pages (from-to)10660-10665
Number of pages6
JournalJournal of Materials Chemistry A
Volume3
Issue number20
DOIs
StatePublished - May 28 2015

Fingerprint

Ionic Liquids
Ionic liquids
Cathodes
Opacity
Conversion efficiency
Heterojunctions
Solar cells
Polymer solar cells
Electrons

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Yu, W. ; Huang, L. ; Yang, D. ; Fu, P. ; Zhou, L. ; Zhang, J. ; Li, C. / Efficiency exceeding 10% for inverted polymer solar cells with a ZnO/ionic liquid combined cathode interfacial layer. In: Journal of Materials Chemistry A. 2015 ; Vol. 3, No. 20. pp. 10660-10665.
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Efficiency exceeding 10% for inverted polymer solar cells with a ZnO/ionic liquid combined cathode interfacial layer. / Yu, W.; Huang, L.; Yang, D.; Fu, P.; Zhou, L.; Zhang, J.; Li, C.

In: Journal of Materials Chemistry A, Vol. 3, No. 20, 28.05.2015, p. 10660-10665.

Research output: Contribution to journalArticle

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AU - Li, C.

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