The influence of particle sizes on the optical characteristics of nanocrystalline TiO2 films for dye-sensitized solar cells

Peter Chao Yu Chen, Guido Rothenberger, Michael Gratzel

研究成果: Conference contribution

摘要

Increasing the light harvesting efficiency (LHE) of photovoltaic devices is important for improving the conversion efficiency of solar light into electricity. The optical properties of mesoporous TiO2 films for Dye-Sensitized Solar Cells (DSCs) were investigated by varying the size of the particles (20 - 150 nm). A four-flux optical model was used to describe the light absorption and scattering within the film. Reflectance and transmittance spectra were recorded by a spectrophotometer equipped with an integrating sphere. The wavelength-dependent absorption coefficient k(λ) and scattering coefficient s(λ) were determined for different films. The absorptance G(λ) (absorbed light flux) for films made of different particle sizes and of varying thicknesses can be calculated from these optical parameters. This study helps in improving the optical design of dye-sensitized solar cells.

原文English
主出版物標題Materials Research Society Symposium Proceedings - Light Management in Photovoltaic Devices-Theory and Practice
發行者Materials Research Society
頁面127-132
頁數6
ISBN(列印)9781605608594
DOIs
出版狀態Published - 2008 一月 1
事件Light Management in Photovoltaic Devices-Theory and Practice - San Francisco, CA, United States
持續時間: 2008 三月 242008 三月 28

出版系列

名字Materials Research Society Symposium Proceedings
1101
ISSN(列印)0272-9172

Conference

ConferenceLight Management in Photovoltaic Devices-Theory and Practice
國家/地區United States
城市San Francisco, CA
期間08-03-2408-03-28

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 凝聚態物理學
  • 材料力學
  • 機械工業

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