대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

Polyol process를 이용한 태양전지용 $CuInS_2$ 나노분말 제조 및 특성평가

Characterization and Manufacturing for Solar Cells $CuInS_2$ Nanopowder by polyol process

  • 이대걸 (세종대학교 나노신소재공학과) ;
  • 이남희 (세종대학교 나노신소재공학과) ;
  • 오효진 (세종대학교 나노신소재공학과) ;
  • 윤영웅 (세종대학교 나노신소재공학과) ;
  • 황종선 (전남도립대학 컴퓨터응용전기과) ;
  • 김선재 (세종대학교 나노신소재공학과)
  • Lee, Dae-Girl (Dept. of Nano Science & Technology, Sejong University) ;
  • Lee, Nam-Hee (Dept. of Nano Science & Technology, Sejong University) ;
  • Oh, Hyo-Jin (Dept. of Nano Science & Technology, Sejong University) ;
  • Yun, Yeong-Ung (Dept. of Nano Science & Technology, Sejong University) ;
  • Hwang, Jong-Sun (Dept. of Electricity Applied Computer, Jeonnam Provincial College) ;
  • Kim, Sun-Jae (Dept. of Nano Science & Technology, Sejong University)
  • 발행 : 2009.04.17
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초록

In this study, $CuInS_2$ powders have been synthesized using polyol process of a mixture of copper nitrate, indium nitrate, and thiourea with various stoichiometric molar ratios in ethylene glycol at 196$^{\circ}C$. As boiling time goes by, the color of metal ion mixed solutions were changed transparent green to dark green and finally fumed to black by reduction of $OH^-$ radicals. The prepared powders were fully characterized by SEM, XRD and UV-Vis. The particle shape of black colored powders showed sphere with about 30 nm in particle size compared to those with dark green colored powders showed irregular shape with about 1 ${\mu}m$ in particle size. The XRD results showed highly crystallized $CuInS_2$. The UV-Vis spectra showed broad shoulder at 430 and 780 nm corresponding to 2.78 and 1.58 eV for the dark green colored one and black colored one, respectively.

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