In this study, we investigate the relationship between the peeling behavior of the backsheet of a photovoltaic(PV) module and its surface temperature in order facilitate removal of the backsheet from the PV module. At low temperatures, the backsheet does not peel off whereas, at high temperatures, part of the backsheet remains on the surface of the PV module after the peeling process. The backsheet material remaining on the surface of the PV module is confirmed by X-ray diffraction(XRD) analysis to be poly-ethylene(PE). Differential scanning calorimetry(DSC) is also performed to investigate the interfacial characteristics of the layers of the PV module. In particular, DSC provides the melting temperature(Tm) of laminated ethylene vinyl acetate(EVA) and of the backsheet on the PV module. It is found that the backsheet does not peel off below the Tm of ethylene of EVA, while the PE layer of the backsheet remains on the surface of the PV module above the Tm of the PE. Thus, the backsheet is best removed at a temperature between the Tm of ethylene and that of PE layer.

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

• 김정훈(한국에너지기술연구원 분리변환소재연구실, 충남대학교 에너지과학기술대학원) | Jeong-Hun Kim (Separation and Conversion Materials Laboratory, Korea Institute of Energy Research, Graduate School of Energy Science and Technology, Chungnam National University)
• 이준규(한국에너지기술연구원 분리변환소재연구실) | Jun-Kyu Lee (Separation and Conversion Materials Laboratory, Korea Institute of Energy Research)
• 안영수(한국에너지기술연구원 분리변환소재연구실) | Young-Soo Ahn (Separation and Conversion Materials Laboratory, Korea Institute of Energy Research)
• 여정구(한국에너지기술연구원 분리변환소재연구실) | Jeong-Gu Yeo (Separation and Conversion Materials Laboratory, Korea Institute of Energy Research)
• 이진석(한국에너지기술연구원 분리변환소재연구실) | Jin-Seok Lee (Separation and Conversion Materials Laboratory, Korea Institute of Energy Research) Corresponding author
• 강기환(한국에너지기술연구원 태양광연구실) | Gi-Hwan Kang (Photovoltaic Laboratory, Korea Institute of Energy Research)
• 조철희(충남대학교 에너지과학기술대학원) | Churl-Hee Cho (Graduate School of Energy Science and Technology, Chungnam National University) Corresponding author