| 학회 |
한국재료학회 |
| 학술대회 |
2010년 가을 (11/11 ~ 11/12, 무주리조트) |
| 권호 |
16권 2호 |
| 발표분야 |
C. Energy and the Environment Technology(에너지 및 환경재료) |
| 제목 |
Studies on Cu2ZnSnS4 (CZTS) absorber layer using different stacking orders in precursor thin films |
| 초록 |
Cu2ZnSnS4 (CZTS) thin films were prepared on glass substrates using stacked precursors deposited by sputtering method. The stacked precursor thin films were prepared from Cu, SnS2, and ZnS targets at room temperature with different stacking orders of Cu/SnS2/ZnS/glass (A), ZnS/Cu/SnS2/glass (B), and SnS2/ZnS/Cu/glass (C). The effects of stacking order in precursor thin films on the structural, morphological, chemical, and optical properties of CZTS thin films were investigated. X-ray diffraction, Raman spectra, and X-ray photoelectron spectroscopy studies show that the annealed CZTS thin film using a stacking order A has a single kesterite crystal structure without secondary phases, while for stacking orders B and C have kesterite phase with secondary phases such as Cu2-xS, SnS2, and SnS. The annealed CZTS thin film using stacking order A shows a very dense morphology without any voids. However, the annealed CZTS thin films using stacking orders B and C are observed the volcano shape voids (B) and Sn-based secondary phases (C) on the surface. The direct band gap energy of CZTS thin films are 1.45 eV (A), 1.35 eV (B), and 1.1 eV (C), respectively. |
| 저자 |
Seung Wook Shin1, S.M. Pawar2, Chan Young Park3, Jae Ho Yun4, Jong-Ha Moon5, Jin Hyeok Kim1, Jeong Yong Lee5
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| 소속 |
1Department of Materials Science and Engineering, 2KAIST, 3Daejeon 305-701, 4South Korea, 5Photonics Technology Research Institute |
| 키워드 |
Cu2ZnSnS4 (CZTS) absorber; Stacked precursor thin films; Sputtering technique; Thin film solar cells (TFSCs)
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| E-Mail |
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