Materials, interfaces, and photon confinement in dye-sensitized solar cells

Byunghong Lee, Dae Kue Hwang, Peijun Guo, Shu Te Ho, D. B. Buchholtz, Chiu Yen Wang, R P H Chang

Research output: Contribution to journalArticlepeer-review

74 Scopus citations


A series of experiments have been carried out to study the effects of materials quality, surface and interfacial modification, and photon confinement on standard dye-sensitized solar cells. For these studies, both physical and optical characterization of the materials has been performed in detail, In addition, DC and AC impedance measurements along with kinetic charge-transport modeling of experimental results have yielded information on how to systematically optimize the cell efficiency. The same kinetic model has been used to interpret the results of a series of experiments on interfacial modification studies using fluorine etching in combination with TiCl4 surface treatment. By using specially designed photonic crystals to confine the photons in the cells, it is shown that the best cell efficiency can be further increased by about 13%.

Original languageEnglish (US)
Pages (from-to)14582-14591
Number of pages10
JournalJournal of Physical Chemistry B
Issue number45
StatePublished - Dec 8 2010

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Physical and Theoretical Chemistry
  • Materials Chemistry


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