Characteristics of Dye-Sensitized Solar Cells with TiO2 Stripes

Wen Feng Lai, Pei Ling Chao, Xin Yu Lin, Yin Pei Chen, Jih Hsin Liu, Tz Feng Lin, Wei Chou Hsu, Chia Yi Huang

研究成果: Article同行評審

摘要

A TiO2 strip array with a thickness of 90 nm was fabricated by photolithography and physical vapor deposition. This work utilized the chemical and physical methods to fabricate the TiO2 strip array. A porous semiconductor layer made of TiO2 nanoparticles was coated on the TiO2 strip array. The TiO2 strip array has a one-dimensional protrusive structure. The energy conversion efficiency (4.38%) of a dye-sensitized solar cell (DSSC) with the TiO2 strip array exceeded that (3.20%) of a DSSC without a TiO2 strip array by 37%. In addition, this result was verified by the electrochemical impedance spectra of the two DSSCs. Therefore, the TiO2 strip array can be used to increase the energy conversion efficiencies of DSSCs. The large energy conversion efficiency of the DSSC with the TiO2 strip array arises from the large surface area of the one-dimensional protrusive structure and its specific electron transport paths. The DSSC with the TiO2 strip array has advantages of economical production cost, easy fabrication, and boosting energy conversion efficiency.

原文English
文章編號4212
期刊Materials
15
發行號12
DOIs
出版狀態Published - 2022 6月 1

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 凝聚態物理學

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