Preparation and characterization of CuIn1-xGaxSe2 nanopowders using solution growth technology for solar energy application

Kong Wei Cheng*, Huei Jhen Jhang, Chun Ting Li, Kuo Chuan Ho

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

In this study, the CuIn1-xGaxSe2 nano-particles were prepared using the solution growth technology. The effects of [Ga]/[In+Ga] molar ratios in samples on the structural, electrical, and optical properties of the samples was investigated. X-ray diffraction patterns of samples revealed that the as-prepared samples are the chalcopyrite phase with preferential orientation of (112) crystal plane. The average particle size of samples obtained from the transmission electron microscopy is 10.73 nm after the 10 min. reaction in the solution. The direct energy band gap of thin films were in the range of 1.01∼1.27 eV, depending on [Ga]/[In+Ga] molar ratio in samples. The performance of dye-sensitized solar cells with the CuIn1-xGaxSe2 as the counter electrode was also investigated. The maximum solar to electrical power efficiency of dye-sensitized solar cells using the CuIn1-xGaxSe2 as the counter electrode approached of 5.57 %.

Original languageEnglish
Pages (from-to)1933-1936
Number of pages4
JournalEnergy Procedia
Volume61
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event6th International Conference on Applied Energy, ICAE 2014 - Taipei, Taiwan
Duration: 2014 May 302014 Jun 2

Keywords

  • CuInGaSe
  • DSSC
  • Solution growth technology

ASJC Scopus subject areas

  • Energy(all)

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