Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Characterization of Hydrazine Solution Processed Multi-layered CuInSe2 Thin Films

하이드라진 용액법으로 형성된 CuInSe2 다층 박막 분석

  • Chung, Choong-Heui (Department of Materials Science and Engineering, Hanbat National University)
  • Received : 2015.07.24
  • Accepted : 2015.08.07
  • Published : 2015.08.31
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Abstract

$CuInSe_2$ thin films which have been widely used for thin solar cells as a light absorber were prepared by hydrazine solution processing, and their microstructural properties were investigated. Hydrazine $CuInSe_2$ precursor solutions were prepared by dissolving $Cu_2S$, S, $In_2Se_3$ and Se powder in hydrazine solvent. Multilayer $CuInSe_2$ chalcopyrite phase thin films were prepared by repeating spin-coating process using the precursor solution. Unfortunately, the presence of the interfaces between each $CuInSe_2$ layer formed by multi-layer coating impeded grain growth across the interface. Here, by doing simple interface engineering to solve the limited grain growth issue, the large grained (${\sim}1{\mu}m$) $CuInSe_2$ thin films were obtained.

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References

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