Patterning Islandlike MnO2 Arrays by Breath-Figure Templates for Flexible Transparent Supercapacitors

Yizhou Wang, Weixin Zhou, Qi Kang, Jun Chen, Yi Li*, Xiaomiao Feng, Dan Wang, Yanwen Ma, Wei Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

57 Scopus citations


Although plenty of active materials could be used as supercapacitor electrodes, only limited ones have been engineered to construct transparent supercapacitors. Specially, it is a great challenge to make opaque metal oxides, which often own high energy density, into transparent films. Here, we demonstrate a novel approach to fabricate transparent MnO2 films for flexible transparent supercapacitors. By utilizing breath-figure polymer films with ordered pores as template, arrays of MnO2 islands were electrochemically deposited, with high light transmission. The thickness and interspace distance of MnO2 island arrays could be adjusted by tuning deposition time so that the capacitance and transparency of the electrodes are changed accordingly. Such island array structure can effectively eliminate the internal stress existing in the composite film to avoid cracks during bending operation. The assembled transparent supercapacitor shows a transmittance of 44% at 550 nm and can yield a high capacitance of 4.73 mF/cm2 at a current density of 50 μA/cm2, demonstrating high flexibility and stability.

Original languageEnglish (US)
Pages (from-to)27001-27008
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number32
StatePublished - Aug 15 2018


  • breath-figure
  • electrodeposition
  • flexible
  • manganese dioxide
  • supercapacitors
  • transparent

ASJC Scopus subject areas

  • Materials Science(all)


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