Effect of titanium oxide compact layer in dye-sensitized solar cell prepared by liquid-phase deposition

Jung Jie Huang, Shih Ping Chiu, Menq Jion Wu, Chun Fa Hsu

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In this study, titanium dioxide films were deposited on indium tin oxide glass substrates by liquid-phase deposition (LPD) for application as the compact layer in dye-sensitized solar cells (DSSCs). A deposition solution of ammonium hexafluorotitanate and boric acid was used for TiO2 deposition. Compact layer passivation can improve DSSC performance by decreasing carrier losses from recombination at the ITO/electrolyte interface and improving the electrical contact between the ITO and the TiO2 photo-electrode. The optimum thickness of the compact layer was found to be 48 nm, which resulted in a 50 % increase in the conversion efficiency compared with cells without compact layers. The conversion efficiency can be increased from 3.55 to 5.26 %. Therefore, the LPD-TiO2 compact layer inhibits the dark current and increases the short-circuit current density effectively.

Original languageEnglish
Article number971
JournalApplied Physics A: Materials Science and Processing
Issue number11
Publication statusPublished - 2016 Nov 1


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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