Different ligand exchange solvents effect on the densification of CuIn 0.7 Ga 0.3 Se 2 prepared using the heating-up method

Chang Ting Yang, Hsing I. Hsiang

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)

摘要

The effects of different ligand exchange solvents and heat treatment conditions on the densification and microstructure development of CuIn 0.7 Ga 0.3 Se 2 (CIGS) crystallites synthesized using the heating-up method were studied in this work. The heat treatment effects on the organic molecules and crystalline structure were investigated using Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It was observed that oleylamine (OLA) adsorbed onto the CIGS surface was difficult to remove during sintering. Ligand-exchange with m-xylene or 1-hexanethiol can promote the removal of oleylamine adsorbed onto the CIGS surface and prevent the residual carbon from forming during sintering, which leads to grain growth and densification. A dense CuIn 0.7 Ga 0.3 Se 2 can be obtained using the precursor powders after ligand-exchange with 1-hexanethiol and m-xylene to remove organic molecules and sintering at 600 °C for 2 h under Se atmosphere.

原文English
頁(從 - 到)1148-1157
頁數10
期刊Applied Surface Science
426
DOIs
出版狀態Published - 2017 12月 31

All Science Journal Classification (ASJC) codes

  • 一般化學
  • 凝聚態物理學
  • 一般物理與天文學
  • 表面和介面
  • 表面、塗料和薄膜

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