화학공학소재연구정보센터
학회 한국재료학회
학술대회 2010년 가을 (11/11 ~ 11/12, 무주리조트)
권호 16권 2호
발표분야 C. Energy and the Environment Technology(에너지 및 환경재료)
제목 The influences of different compositional ratios on the properties of Cu2ZnSnS4 (CZTS) thin films by simultaneous co-sputtering system
초록     The Cu2ZnSnS4 (CZTS) thin films were prepared by simultaneous Co-sputtering system using Cu, SnS2 and ZnS targets followed by annealing in the mixed N2 (95%) +H2S (5%) atmosphere at 600oC for 1 hour. The influences of different composition of the annealed CZTS films (viz. Cu poor, Cu rich, Zn poor and Zn rich) are investigated by using X-ray diffraction, FESEM, Energy dispersive X-ray, UV-Vis spectrometer, Hall measurement. X-ray diffraction patterns showed the formation of polycrystalline CZTS. The energy dispersive X-ray results revealed Cu poor, Cu rich, Zn poor and Zn rich compositions of CZTS thin films. The optical band gap energies of the CZTS thin films with different compositional ratios were observed by UV-Vis. We also confirmed the formation of CZTS thin films with uniform morphology by field emission scanning electron microscopy. Furthermore, the electrical properties of CZTS thin films with various compositions were studied by Hall measurement system and IVT tester.
저자 Chan-Yeong Park1, Seung Wook Shin2, Chaehwan Jeong3, Jin Hyeok Kim4
소속 1Department of Materials Science Engineering, 2Chonnam National Univ., 3Department of Materials Science and Engineering, 4KAIST
키워드 Cu2ZnSnS4; Compositional ratio; Co-sputtering system; Thin film solar cell
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