Cu2ZnSn(S,Se)4(CZTSSe) thin film solar cells areone of the most promising candidates for photovoltaic devices due to their earth-abundant composition, high absorption coefficient and appropriate band gap. The sputtering process is the main challenge to achieving high efficiency of CZTSSe solar cells for industrialization. In this study, we fabricated CZTSSe absorbers on Mo coated soda lime glass using different pressures during the annealing process. As an environmental strategy, the annealing process is performed with S and Se powder, without any toxic H2Se and/or H2S gases. Because CZTSSe thin films have a very narrow stable phase region, it is important to control the condition of the annealing process to achieve high efficiency of the solar cell. To identify the effect of process pressure during the sulfo-selenization, we experiment with varying initial pressure from 600 Torr to 800 Torr. We fabricate a CZTSSe thin film solar cell with 8.24 % efficiency, with 435 mV for open circuit voltage(VOC) and 36.98 mA/cm2 for short circuit current density(JSC), under a highest process pressure of 800 Torr.

Abstracts
1.서 론
2. 실험 방법
3. 결과 및 고찰
4.결 론
References

• 이병훈(전남대학교 신소재공학과) | Byeong Hoon Lee (Department of Materials Science and Engineering, Chonnam National University)
• 장준성(전남대학교 신소재공학과) | Jun Sung Jang (Department of Materials Science and Engineering, Chonnam National University)
• 이인재(전남대학교 신소재공학과) | InJae Lee (Department of Materials Science and Engineering, Chonnam National University)
• 조은애(전남대학교 신소재공학과) | Eunae Jo (Department of Materials Science and Engineering, Chonnam National University)
• 김진혁(전남대학교 신소재공학과/전남대학교 광전자융합기술연구소) | Jin Hyeok Kim (Department of Materials Science and Engineering, Chonnam National University/Optoelectronic Convergence Research Center, Chonnam National University) Corresponding author
• 류혜선(전남대학교 광전자융합기술연구소) | Hyesun Yoo (Optoelectronic Convergence Research Center, Chonnam National University)
• 김지훈(광주과학기술원 전기전자컴퓨터공학부) | Jihun Kim (Scool of Integrated Technology, Gwangju Institute of Science and Technology)