Current Applied Physics

  • 제18권12호
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  • Pages.1571-1576
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  • 2018
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  • 1567-1739(pISSN)
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  • 1567-1739(eISSN)
한국물리학회 (Korean Physical Society)
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The characteristic of Cu2ZnSnS4 thin film solar cells prepared by sputtering CuSn and CuZn alloy targets

  • Lu, Yilei (Key Laboratory of Rural Energy Engineering in Yunnan Province, Yunnan Normal University) ;
  • Wang, Shurong (Key Laboratory of Rural Energy Engineering in Yunnan Province, Yunnan Normal University) ;
  • Ma, Xun (Key Laboratory of Rural Energy Engineering in Yunnan Province, Yunnan Normal University) ;
  • Xu, Xin (Key Laboratory of Rural Energy Engineering in Yunnan Province, Yunnan Normal University) ;
  • Yang, Shuai (Key Laboratory of Rural Energy Engineering in Yunnan Province, Yunnan Normal University) ;
  • Li, Yaobin (Key Laboratory of Rural Energy Engineering in Yunnan Province, Yunnan Normal University) ;
  • Tang, Zhen (Key Laboratory of Rural Energy Engineering in Yunnan Province, Yunnan Normal University)
  • 투고 : 2018.06.20
  • 심사 : 2018.10.11
  • 발행 : 2018.12.31
⟨ 이전 논문 다음 논문 ⟩

초록

Recent study shows that the main reason for limiting CZTS device performance lies in the low open circuit voltage, and crucial factor that could affect the $V_{oc}$ is secondary phases like ZnS existing in absorber layer and its interfaces. In this work, the $Cu_2ZnSnS_4$ thin film solar cells were prepared by sputtering CuSn and CuZn alloy targets. Through tuning the Zn/Sn ratios of the CZTS thin films, the crystal structure, morphology, chemical composition and phase purity of CZTS thin films were characterized by X-Ray Diffraction (XRD), scanning electron microscopy (SEM) equipped with an energy dispersive spectrometer (EDS) and Raman spectroscopy. The statistics data show that the CZTS solar cell with a ratio of Zn/Sn = 1.2 have the best power convention efficiency of 5.07%. After HCl etching process, the CZTS thin film solar cell with the highest efficiency 5.41% was obtained, which demonstrated that CZTS film solar cells with high efficiency could be developed by sputtering CuSn and CuZn alloy targets.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

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피인용 문헌

  1. Single step electrochemical deposition for the fabrication of CZTS kesterite thin films for solar cells vol.497, pp.None, 2019, https://doi.org/10.1016/j.apsusc.2019.143794
  2. The Influence of Removal of Secondary Phases and Dissolution By-Product from the Surface of Cu2ZnSnS4 Film on the Photoelectrochemical Response of This Film vol.167, pp.2, 2018, https://doi.org/10.1149/1945-7111/ab6cef
  3. Study on the Optimization of Cu-Zn-Sn-O to Prepare Cu2ZnSnS4 Thin Film via a Nano Ink Coating Method vol.9, pp.None, 2018, https://doi.org/10.3389/fchem.2021.675642
  4. Investigation on the properties of Cu2ZnSnSe4 and Cu2ZnSn(S,Se)4 absorber films prepared by magnetron sputtering technique using Zn and ZnS targets in precu vol.45, pp.2, 2018, https://doi.org/10.1002/er.5935