화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터)
권호 16권 2호, p.2088
발표분야 재료
제목 Characteristic of pH-controlled on electro-deposited CdTe thin films
초록 CdTe solar cell is Ⅱ-Ⅳ group compound semiconductor with a relatively narrow band gap(1.45eV) and high absorption coefficient(α > 5 x 105 cm-1). In addition CdTe thin film is relatively easy to fabrication process. The way of CdTe thin film fabrication is electro-deposition, Vacuum evaporation, Close-spaced Sublimation, Screen printing, Sputter, MOCVD etc. In this study, CdTe thin film have been deposited using electro-deposition. CdS thin film was deposited by chemical bath deposition on theTCO(transparent conductive oxide) coated glass substrate. CdTe thin film was deposited by electrochemical deposition after that CdS deposition. The working electrode was a CdS/ITO layer. Ptsheet was used as a counter electrode. CdSO4 and TeO2 was used as precursor for the formation CdTe thin film and pHof the solution was controlled by H2SO4 . The pHhas arange of 0.5~2.5. Properties of CdTe thin film at pH-controlled solution. The thin film samples deposited are characterized using Scanning Electron Microscope(SEM), Energy dispersive spectroscopy(EDS) and X-Ray Diffractometer(XRD).
This work was supported by the researchers involved were partially supported by the 2nd phase of the BK 21 program.
저자 김정미, 이형민, 김홍탁, 박진호
소속 영남대
키워드 electrodeposition; CdTe; pH
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