Recently, research on cost reduction and efficiency improvement of crystalline silicon(c-Si) photovoltaic(PV) module has been conducted. In order to reduce costs, the thickness of solar cell wafers is becoming thinner. If the thickness of the wafer is reduced, cracking of wafer may occur in high temperature processes during the c-Si PV module manufacturing process. To solve this problem, a low temperature process has been proposed. Conductive paste(CP) is used for low temperature processing; it contains Sn57.6Bi0.4Ag component and can be electrically combined with solar cells and ribbons at a melting point of 150℃. Use of CP in the PV module manufacturing process can minimize cracks of solar cells. When CP is applied to solar cells, the output varies with the amount of CP, and so the optimum amount of CP must be found. In this paper, in order to find the optimal CP application amount, we manufactured several c-Si PV modules with different CP amounts. The amount control of CP is fixed at air pressure (500 kPa) and nozzle diameter 22G(outer diameter 0.72Ø, inner 0.42Ø) of dispenser; only speed is controlled. The c-Si PV module output is measured to analyze the difference according to the amount of CP and analyzed by optical microscope and Alpha-step. As the result, the optimum amount of CP is 0.452 ~ 0.544 g on solar cells.

Abstract
1. 서 론
2. 실험 방법
3. 결과 및 고찰
    3.1 전도성 페이스트의 도포속도와 도포량의 상관관계
    3.2 전도성 페이스트의 도포량에 따른 PV module의 전기적 특성 분석
    3.3 도포속도에 따른 전도성 페이스트의 특성분석
4. 결 론
References

• 김용성(충남대학교 에너지과학기술대학원, 한국에너지기술연구원 신·재생에너지 연구소 태양광 연구실) | Yong Sung Kim (Graduate School of Energy Science & Technology, Chungnam National University, Photovoltaic Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
• 임종록(한국에너지기술연구원 신·재생에너지 연구소 태양광 연구실) | Jong Rok Lim (Photovoltaic Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
• 신우균(한국에너지기술연구원 신·재생에너지 연구소 태양광 연구실) | Woo Gyun Shin (Photovoltaic Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
• 고석환(한국에너지기술연구원 신·재생에너지 연구소 태양광 연구실) | Suk-Whan Ko (Photovoltaic Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
• 주영철(한국에너지기술연구원 신·재생에너지 연구소 태양광 연구실) | Young-Chul Ju (Photovoltaic Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
• 황혜미(한국에너지기술연구원 신·재생에너지 연구소 태양광 연구실) | Hye Mi Hwang (Photovoltaic Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
• 장효식(충남대학교 에너지과학기술대학원) | Hyo Sik Chang (Graduate School of Energy Science & Technology, Chungnam National University) Corresponding author
• 강기환(한국에너지기술연구원 신·재생에너지 연구소 태양광 연구실) | Gi-Hwan Kang (Photovoltaic Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research) Corresponding author