Synthesis of CuInGaSe 2 nanoparticles by modified polyol route

Jiann Der Wu, Ling Ting Wang, Chie Gau

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Chalcopyrite of copper indium gallium selenium (Cu(In xGa 1-x)Se 2; CIGS) nanoparticles for solar cell materials have been successfully synthesized by a relatively simple and convenient method, i.e., a modified polyol route. The In/Ga ratio in the CIGS nanocrystals can be controlled by varying the In/Ga ratio in the reaction, and the optical properties of the CIGS nanocrystals correspond to those of the bulk materials. The use of reactants, CuCl, InCl 3, GaCl 3 and Se powders, in a three-neck flask with tetraethylene glycol as a solvent, spherical CIGS nanoparticles with diameter in the range of 40100 nm can be obtained at temperatures in the range of 200280°C. Incorporation of gallium into the CuInSe 2 compound requires a much higher reaction temperature for the formation of the CIGS nanoparticles. The characteristics and average sizes of these nanoparticles are analyzed with sophisticated instruments, such as SEM, TEM, EDS, X-ray diffraction pattern, and XRD.

Original languageEnglish
Pages (from-to)404-408
Number of pages5
JournalSolar Energy Materials and Solar Cells
Volume98
DOIs
Publication statusPublished - 2012 Mar 1

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

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