| 학회 |
한국재료학회 |
| 학술대회 |
2011년 가을 (10/27 ~ 10/29, 신라대학교) |
| 권호 |
17권 2호 |
| 발표분야 |
C. Energy and the Environment Technology(에너지 및 환경재료) |
| 제목 |
Effect of Cu/In compositional ratio on the CuInS2 absorber thin films prepared by sulfurization of In/Cu stacked precursor |
| 초록 |
CuInS2 (CIS) absorber thin films were prepared by sulfurization of In/Cu stacked precursors by sputtering method. In/Cu stacked precursors were deposited on the Mo/Soda-lime glass substrate by DC-magnetron sputtering. Ratio of In/Cu precursors was varied from 1.3 to 5.6. In precursor was fixed at 200W, 3600sec and 15m torr, whereas Cu precursor controlled time was from 300sec to 1800sec without Watt and Pressure such as 175W and 5m torr. In order to synthesize CIS thin films, sulfurization process was carried out under the mixture of N2 (95 %) + H2S (5 %) atmosphere using furnace. This process took place experienced in two-step process of pre-treatment and annealing in sequence. Effect of In/Cu ratio was measured by X-ray diffraction (XRD), Raman spectroscopy, field-scanning electron microscopy (FE-SEM), energy dispersive spectrometer (EDS) and Hall measure system such as structural, morphological, compositional, and electrical properties of absorber layers, respectively. FE-SEM study indicated that Cu thickness was increased and CIS thin films were synthesized, whereas secondary phase were revealed. XRD study showed that sulfurized thin films exhibited CIS tetragonal structure, whereas Raman Spectroscopy results were indicated various structural properties such as CIS phase and secondary phase. Additionally, compositional properties of CIS absorber layers showed that Cu/In ratio was a somewhat largely fluctuated from 0.2 to 1.6. |
| 저자 |
Seung Hwan Lee1, Jun Hee Han2, G.L. Agawane3, Seung Wook Shin4, Jae Ho Yun1, Jong Ha Moon2, Jin Hyeok Kim3, Jeong Yong Lee4
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| 소속 |
1Photonics Technology Research Institute, 2Department of Materials Science and Engineering Chonnam National Univ., 3Department of Materials Science and Engineering, 4KAIST |
| 키워드 |
CuInS2; CIS; solar cells
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| E-Mail |
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