Synthesis of CIGS powders: Transition from binary to quaternary crystalline structure

Eunjoo Lee, Jin Woo Cho, Jaehoon Kim, Jaeho Yun, Jong Hak Kim, Byoung Koun Min

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

A chalcogenide quaternary crystal (CIGS) composed of Cu, In, Ga, and Se was synthesized by a solution reaction of Cu, In, and Ga nitrate and Se chloride in organic solvent, followed by an annealing process. In our synthetic method, the binary crystal of CuCl was found to be initially formed during the solution reaction at 130 °C for 3 h, but it turned into another binary crystal structure, β-CuSe at the longer time reaction (>12 h). The binary crystalline structure was then turned into quaternary crystal due to the heat treatment at 450 °C in reduction conditions and in the absence of additional elemental sources of In and/or Ga. For potential solar cell applications, the powder was also applied to prepare CIGS film by a paste coating. The structural characteristics of the powder and film were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electronic diffraction (SAED), and scanning electron microscopy (SEM).

Original languageEnglish
Pages (from-to)969-972
Number of pages4
JournalJournal of Alloys and Compounds
Volume506
Issue number2
DOIs
Publication statusPublished - 2010 Sep 17

Keywords

  • Binary
  • CIGS
  • CuInGaSe
  • Quaternary

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Synthesis of CIGS powders: Transition from binary to quaternary crystalline structure'. Together they form a unique fingerprint.

Cite this