A platinum counter electrode with high electrochemical activity and high transparency for dye-sensitized solar cells

Yuh Lang Lee, Ching Lun Chen, Lai Wan Chong, Chien Heng Chen, Yung Fang Liu, Ching Fa Chi

Research output: Contribution to journalArticlepeer-review

98 Citations (Scopus)

Abstract

Ultra-thin platinum films were deposited on indium tin oxide (ITO) substrates in a sputtering process and used as counter electrodes of dye-sensitized solar cells. The nano-structured Pt film not only has a high transmittance (75%), but also has a lower charge-transfer resistance compared with that of thick Pt films. Under front-side illumination, the synergistic effects of the nano-structured Pt film (1.4 nm) and a reflective aluminum foil can increase the efficiency of a normal cell from 6.8 to 7.9%. For the back-side illumination, the efficiency achieved by using the present strategy is 6.6%, which is comparable to the front-side illuminated efficiency of DSSCs using thick Pt films (ca. 6.8%).

Original languageEnglish
Pages (from-to)1662-1665
Number of pages4
JournalElectrochemistry Communications
Volume12
Issue number11
DOIs
Publication statusPublished - 2010 Nov 1

All Science Journal Classification (ASJC) codes

  • Electrochemistry

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