| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 |
18권 1호 |
| 발표분야 |
포스터-에너지저장.변환 |
| 제목 |
Surface local work function of Cu2ZnSn(S,Se)4 thin-films with respect to ZnS thickness in precursor by sputtering methods |
| 초록 |
Cu2ZnSnSSe4 (CZTSSe) is the most promising materials for thin films solar cells. The CZTS precursors were grown by sputtering with different ZnS and then annealed with selenization in a furnace. The thickness of ZnS influence to composition and photovoltaic properties were exhibited. Scanning probe microscopy were used to explore the local electrical properties of the CZTSSe thin-films. The work function of CZTSSe thin-film indicates around 4.7 eV. Depending on ZnS thickness, work function and local current of CZTSSe thin-film present different. The work function provides clues to understand the effects ZnS between CZTSSe thin-film. Depending on Zn composition, higher work function phase is identified compare with CZTSSe (Φ=4.7 to 4.8 eV). It could be attributed by the formation of secondary phases at CZTSSe surfaces. From these studies, we can identify the effects of ZnS thickness in CZTSSe solar cells. Thus, Zn composition in CZTSSe solar cell is essential of consideration to improving cell efficiency. |
| 저자 |
김지영1, 김주리1, 조윌렴1, 손대호2, 양기정2, 김대환2, 강진규2
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| 소속 |
1이화여자대, 2DGIST |
| 키워드 |
CZTSSe; Kelvin probe force micoscopy; Sputtering
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| E-Mail |
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