Influence of grain size of ZnO nanocrystalline films for application in dye-sensitized solar cells

M. C. Kao, S. L. Young, H. Z. Chen, Y. C. Chen, P. T. Hsieh, S. Y. Wei

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The preferred (002) orientation Zinc oxide (ZnO) nanocrystalline thin films have been deposited on ITO-coated glass substrates by means of sol-gel spin-coating technology and rapid thermal annealing for use in dye-sensitized solar cells (DSSC). The effects of annealing temperature (400 - 700°C) on the microstructure and morphology of ZnO thin films were studied. With the increase of heating temperature from 400°C to 700°C, the grain size of ZnO thin films decreases from 80 to 10 nm. The decreases in grain size of ZnO thin films contributed to the improvement on the absorption of dye onto the films. The ITO/ZnO/RuL2(NCS)2 electrodes with high absorption in the wide range containing visible light reveal that the nanoporous structure can adsorb easily the dye and can be expected in the application of DSSC.

Original languageEnglish
Pages (from-to)3448-3454
Number of pages7
JournalInternational Journal of Modern Physics B
Volume21
Issue number18-19
Publication statusPublished - 2007 Jul 30

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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