[논문]Effect of Cu/(Zn+Sn) ratio on the ZnSe position and performance of CZTSe solar cells

Kwon, M.S.; Nam, D.; Cheong, H.; Jeon, C.W.

doi:10.1016/j.jallcom.2016.01.080

[해외논문] Effect of Cu/(Zn+Sn) ratio on the ZnSe position and performance of CZTSe solar cells

Journal of alloys and compounds, v.665, 2016년, pp.304 - 310

Kwon, M.S. , Nam, D. , Cheong, H. , Jeon, C.W.

Abstract ▼ AI-Helper

Cu2ZnSnSe4 photovoltaic absorber layers were prepared by the vapor selenization of stacked Cu/Sn/CuZn/Mo/glass precursor films with different Cu/(Zn + Sn) compositional ratios (CZT = 0.8, 0.85 and 0.9). The absorber was ZnSe-free at CZT = 0.9 but the films obtained from CZT = 0.85 or 0.8 contained a ZnSe phase mainly at the bottom or top of the absorber film, respectively. Although the solar cell fabricated from the CZT = 0.9 absorber showed poor-shunt characteristics (efficiency = 1.94%), that produced from CZT = 0.85 exhibited significantly distorted currentevoltage characteristics (efficiency = 4.23%). The CZT = 0.8 ratio showed the highest efficiency of 5.8% and normal pn diode behavior. This suggests that the existence or location of the ZnSe phase within the absorber is not related directly to the solar cell performance. Instead, the ZnSe phase may alter the defect distribution near the space charge region. Several aspects of the device behavior depending on the CZT ratio are discussed with respect to the relative position of the ZnSe phase. (C) 2016 Elsevier B.V. All rights reserved.

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참고문헌 (33)

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[해외논문] Effect of Cu/(Zn+Sn) ratio on the ZnSe position and performance of CZTSe solar cells

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[해외논문] Effect of Cu/(Zn+Sn) ratio on the ZnSe position and performance of CZTSe solar cells

Abstract ▼ AI-Helper

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