Al-doped ZnO film as a transparent conductive substrate in indoline-sensitized nanoporous ZnO solar cell

B. Onwona-Agyeman, M. Nakao, G. R.A. Kumara, T. Kitaoka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have deposited porous ZnO films on aluminum-doped ZnO (ZnO/AZO) and fluorine-doped tin oxide (ZnO/FTO) transparent substrates, and annealed both in air at 500°C. X-ray diffraction measurements of the nanoporous ZnO films after heat treatment showed that, ZnO/AZO film exhibited a dominant (002) diffraction while the ZnO/FTO showed mixed diffraction peaks with the (100) and (101) being dominant. Dye-sensitized solar cells (DSC) based on the sensitization of the porous ZnO films on AZO and FTO substrates with an indoline dye were constructed. The photoaction spectrum, which is a measure of the degree of sunlight harvesting, was broad and higher in the ZnO/AZO DSC than that of the ZnO/FTO DSC. Conversion efficiency of 7.3% was obtained for the ZnO/AZO DSC while 4.5% was recorded for the ZnO/FTO. The superior photovoltaic performance of the ZnO/AZO DSC is attributed to better ZnO film orientation after thermal treatment and the higher sunlight harvesting.

Original languageEnglish
Title of host publicationOxide Semiconductors and Thin Films
Pages345-350
Number of pages6
DOIs
Publication statusPublished - Dec 10 2013
Event2012 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 25 2012Nov 30 2012

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1494
ISSN (Print)0272-9172

Other

Other2012 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/25/1211/30/12

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Onwona-Agyeman, B., Nakao, M., Kumara, G. R. A., & Kitaoka, T. (2013). Al-doped ZnO film as a transparent conductive substrate in indoline-sensitized nanoporous ZnO solar cell. In Oxide Semiconductors and Thin Films (pp. 345-350). (Materials Research Society Symposium Proceedings; Vol. 1494). https://doi.org/10.1557/opl.2012.1646