Current Photovoltaic Research

  • 제3권1호
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  • Pages.16-20
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  • 2015
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  • 2288-3274(pISSN)
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  • 2508-125X(eISSN)
한국태양광발전학회 (Korea Photovoltaic Society)
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Ag 함량이 진공증발법으로 형성된 광금지대 (Ag,Cu)(In,Ga)Se2 태양전지에 미치는 영향

Effects of Ag Content on Co-evaporated Wide Bandgap (Ag,Cu)(In,Ga)Se2 Solar Cells

  • 박주완 (태양광연구실, 한국에너지기술연구원) ;
  • 윤재호 (태양광연구실, 한국에너지기술연구원) ;
  • 조준식 (태양광연구실, 한국에너지기술연구원) ;
  • 유진수 (태양광연구실, 한국에너지기술연구원) ;
  • 이희덕 (전자공학과, 충남대학교) ;
  • 김기환 (태양광연구실, 한국에너지기술연구원)
  • Park, Joo Wan (Photovoltaic Laboratory, Korea Institute of Energy of Research) ;
  • Yun, Jae Ho (Photovoltaic Laboratory, Korea Institute of Energy of Research) ;
  • Cho, Jun Sik (Photovoltaic Laboratory, Korea Institute of Energy of Research) ;
  • Yu, Jin Su (Photovoltaic Laboratory, Korea Institute of Energy of Research) ;
  • Lee, Hi-Deok (Department of Electronic Engineering, Chungnam National University) ;
  • Kim, Kihwan (Photovoltaic Laboratory, Korea Institute of Energy of Research)
  • 투고 : 2015.02.10
  • 심사 : 2015.02.16
  • 발행 : 2015.03.31
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초록

Ag addition in chalcopyrite materials is known to lead beneficial changes in aspects of structural and electronic properties. In this work, the effects of Ag alloying of $Cu(In,Ga)Se_2$-based solar cells has been investigated. Wide bandgap $(Ag,Cu)(In_{1-x},Ga_x)Se_2$ (x = 0.75~0.8) films have been deposited using a three-stage co-evaporation with various Ag/(Ag+Cu) ratios. With Ag alloying the $(Ag,Cu)(In_{1-x},Ga_x)Se_2$ (x~0.8) films were found to have greater grainsize and film thickness. Device were also fabricated with the $(Ag,Cu)(In_{1-x},Ga_x)Se_2$ (x~0.8) films and their J-V and quantum efficiency measurements were carried out. The highest-efficiency $(Ag,Cu)(In_{1-x},Ga_x)Se_2$ solar cell with Eg > 1.5 eV had an efficiency of 12.2% with device parameters $V_{OC}=0.810V$, $J_{SC}=21.7mA/cm^2$, and FF = 69.0%.

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참고문헌

  1. P. Jackson, D. Hariskos, E. Lotter, S. Paetel, R. Wuerz, R. Menner, W. Wischmann, M. Powalla, "New world record efficiency for $Cu(In,Ga)Se_2 $ thin-film solar cells beyond 20%", Prog. Photovoltaics, Vol. 19, pp. 894-897, 2011. https://doi.org/10.1002/pip.1078
  2. W. Shafarman, S. Siebentritt, and L. Stolt, Handbook of Photovoltaic Science and Engineering, 2nd edition, Chapter 13, pp. 546-599, John Wiley & Sons, Ltd, 2011.
  3. R. Balluffi, S. Allen, and W. Cater, Kinetics of Materials, John Wiley and Sons, Inc., 2005.
  4. J. Shay, and J. Wernick, International Series of Monographs in the Science of the Solid State, Pergamon Press, 1975.
  5. S. Wei, S. Zhang, and A. Zunger, "Effects of Na on the electrical and structural properties of $CuInSe_2 $", J. Appl. Phys., Vol. 85, pp. 7214-7218, 1999. https://doi.org/10.1063/1.370534
  6. G. Hanket, C. Thompson, J. Larsen, E. Eser, and W. Shafarman, 2012 38th IEEE Photovoltaic Specialists Conference (PVSC), pp. 000662-000667, 2012.
  7. K. Kim, H. Park, G. Hanket, W. Kim and W. Shafarman, "Composition and bandgap control in $Cu(In, Ga)Se_2$-based absorbers formed by reaction of metal precursors", Prog. Photovoltaics, Online published, DOI: 10.1002/pip.2494, 2014.
  8. S. Jung, S. Ahn, J. Yun, J. Gwak, D. Kim, and K. Yoon, "Effects of Ga contents on properties of CIGS thin films and solar cells fabricated by co-evaporation technique", Curr. Appl. Phys., Vol. 10, pp. 990-996, 2010. https://doi.org/10.1016/j.cap.2009.11.082