Nanostructured photoelectrode consisting of TiO2 hollow spheres for non-volatile electrolyte-based dye-sensitized solar cells

Jong Hyuk Park, Sun Young Jung, Raehyun Kim, Nam Gyu Park, Junkyung Kim, Sang-Soo Lee

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

A photoelectrode consisting of titania hollow spheres for dye-sensitized solar cells (DSSCs) is prepared by a paste method and the effect of the nanostructure on the performance of DSSCs with non-volatile electrolytes is investigated. The structure of the hollow sphere (HS) electrode with a large pore size and a high porosity allows highly viscous non-volatile electrolytes to penetrate the electrode thoroughly. Furthermore, its outstanding light-harvesting efficiency and long electron diffusion length make the efficiency of the DSSCs with the HS electrode comparable with those of a conventional nanocrystalline electrode, in spite of the smaller amount of the adsorbed dye, when oligomer electrolytes are used. The results show that the structure of a photoelectrode highly improves the performance of the device and the HS electrode is an effective structure for the use of non-volatile electrolytes in DSSCs.

Original languageEnglish
Pages (from-to)574-579
Number of pages6
JournalJournal of Power Sources
Volume194
Issue number1
DOIs
Publication statusPublished - 2009 Oct 20

Fingerprint

Electrolytes
hollow
solar cells
dyes
electrolytes
Electrodes
electrodes
porosity
electron diffusion
Ointments
diffusion length
oligomers
Oligomers
Pore size
Nanostructures
Coloring Agents
Dyes
titanium
Titanium
Porosity

Keywords

  • Dye-sensitized solar cell
  • Electron diffusion
  • Hollow sphere
  • Light-harvesting
  • Non-volatile electrolyte

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

Cite this

Nanostructured photoelectrode consisting of TiO2 hollow spheres for non-volatile electrolyte-based dye-sensitized solar cells. / Park, Jong Hyuk; Jung, Sun Young; Kim, Raehyun; Park, Nam Gyu; Kim, Junkyung; Lee, Sang-Soo.

In: Journal of Power Sources, Vol. 194, No. 1, 20.10.2009, p. 574-579.

Research output: Contribution to journalArticle

Park, Jong Hyuk ; Jung, Sun Young ; Kim, Raehyun ; Park, Nam Gyu ; Kim, Junkyung ; Lee, Sang-Soo. / Nanostructured photoelectrode consisting of TiO2 hollow spheres for non-volatile electrolyte-based dye-sensitized solar cells. In: Journal of Power Sources. 2009 ; Vol. 194, No. 1. pp. 574-579.
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