Polymer photovoltaic devices with highly transparent cathodes

Fang-Chung Chen*, Jyh Lih Wu, Kuo Huang Hsieh, Wen Chang Chen, Shih Wei Lee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


In this paper, we demonstrate semi-transparent polymer solar cells employing a transparent cathode configuration, made of cesium carbonate (Cs2CO3)/silver (Ag)/indium tin oxide (ITO), which exhibited high transmittance in the visible regime. The device performance of the semi-transparent devices was significantly improved after thermal post-annealing and incorporating an Al counter-electrode (CE) grid. Further, the short-circuit current density increased almost linearly with the incident light intensity, suggesting efficient charge collection ability of the transparent cathode. Overall, the semi-transparent polymer solar cell exhibits a remarkable power conversion efficiency of 2.09%.

Original languageEnglish
Pages (from-to)1132-1135
Number of pages4
JournalOrganic Electronics
Issue number6
StatePublished - Dec 2008


  • Photovoltaic
  • Polymer
  • Solar cells
  • Transparent

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