skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Double-layer composite film based on hollow TiO{sub 2} boxes and P25 as photoanode for enhanced efficiency in dye-sensitized solar cells

Abstract

Highlights: • A novel TiO{sub 2} double-layer composite film is successfully fabricated. • The TiO{sub 2}-HB overlayer exhibited intense scattering ability. • The P25 particles underlayer can enlarge the contact area and increase the contact points between TiO{sub 2}-HB and FTO glass. • TiO{sub 2}-DLL film cells have the maximum conversion efficiency. - Abstract: A TiO{sub 2} double-layer composite film consisting of hollow TiO{sub 2} boxes (HB-TiO{sub 2}) as overlayer and commercial-grade TiO{sub 2} nanoparticles (P25) as underlayer is designed as the photoelectrode of dye-sensitized solar cells (DSSCs). The hollow TiO{sub 2} box has been employed as light-scattering part to increase the optical length in the film and enhance light-harvesting. It was found that the double-layer film cell with lower absorbed dye achieved the highest conversion efficiency and reach up to a maximum value of 6.4%, which is 226% higher than that of pure HB-TiO{sub 2} film cell (η = 1.96%) and 57.2% higher than that of pure P25 particles film cell under identical film thickness at a constant irradiation of 100 mW cm{sup −2}. The enhanced efficiency of double-layer film can be attributed to its light-scattering capability.

Authors:
; ; ; ; ; ;
Publication Date:
OSTI Identifier:
22420636
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 59; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; DIFFUSION; ELECTROCHEMISTRY; ELECTRON DIFFRACTION; FILMS; GLASS; IRRADIATION; LAYERS; LIGHT SCATTERING; NANOPARTICLES; NANOSTRUCTURES; SEMICONDUCTOR MATERIALS; SOLAR CELLS; TITANIUM OXIDES

Citation Formats

Shi, Yue, Zhao, Li, Wang, Shimin, Li, Jing, Dong, Binghai, Xu, Zuxun, and Wan, Li. Double-layer composite film based on hollow TiO{sub 2} boxes and P25 as photoanode for enhanced efficiency in dye-sensitized solar cells. United States: N. p., 2014. Web. doi:10.1016/J.MATERRESBULL.2014.07.012.
Shi, Yue, Zhao, Li, Wang, Shimin, Li, Jing, Dong, Binghai, Xu, Zuxun, & Wan, Li. Double-layer composite film based on hollow TiO{sub 2} boxes and P25 as photoanode for enhanced efficiency in dye-sensitized solar cells. United States. https://doi.org/10.1016/J.MATERRESBULL.2014.07.012
Shi, Yue, Zhao, Li, Wang, Shimin, Li, Jing, Dong, Binghai, Xu, Zuxun, and Wan, Li. 2014. "Double-layer composite film based on hollow TiO{sub 2} boxes and P25 as photoanode for enhanced efficiency in dye-sensitized solar cells". United States. https://doi.org/10.1016/J.MATERRESBULL.2014.07.012.
@article{osti_22420636,
title = {Double-layer composite film based on hollow TiO{sub 2} boxes and P25 as photoanode for enhanced efficiency in dye-sensitized solar cells},
author = {Shi, Yue and Zhao, Li and Wang, Shimin and Li, Jing and Dong, Binghai and Xu, Zuxun and Wan, Li},
abstractNote = {Highlights: • A novel TiO{sub 2} double-layer composite film is successfully fabricated. • The TiO{sub 2}-HB overlayer exhibited intense scattering ability. • The P25 particles underlayer can enlarge the contact area and increase the contact points between TiO{sub 2}-HB and FTO glass. • TiO{sub 2}-DLL film cells have the maximum conversion efficiency. - Abstract: A TiO{sub 2} double-layer composite film consisting of hollow TiO{sub 2} boxes (HB-TiO{sub 2}) as overlayer and commercial-grade TiO{sub 2} nanoparticles (P25) as underlayer is designed as the photoelectrode of dye-sensitized solar cells (DSSCs). The hollow TiO{sub 2} box has been employed as light-scattering part to increase the optical length in the film and enhance light-harvesting. It was found that the double-layer film cell with lower absorbed dye achieved the highest conversion efficiency and reach up to a maximum value of 6.4%, which is 226% higher than that of pure HB-TiO{sub 2} film cell (η = 1.96%) and 57.2% higher than that of pure P25 particles film cell under identical film thickness at a constant irradiation of 100 mW cm{sup −2}. The enhanced efficiency of double-layer film can be attributed to its light-scattering capability.},
doi = {10.1016/J.MATERRESBULL.2014.07.012},
url = {https://www.osti.gov/biblio/22420636}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 59,
place = {United States},
year = {Sat Nov 15 00:00:00 EST 2014},
month = {Sat Nov 15 00:00:00 EST 2014}
}