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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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The Characteristics of a Hydrogenated Amorphous Silicon Semitransparent Solar Cell When Applying n/i Buffer Layers

  • Lee, Da Jung (Components & Materials Research Laboratory, ETRI) ;
  • Yun, Sun Jin (Components & Materials Research Laboratory, ETRI) ;
  • Lee, Seong Hyun (Components & Materials Research Laboratory, ETRI) ;
  • Lim, Jung Wook (Components & Materials Research Laboratory, ETRI)
  • Received : 2012.09.12
  • Accepted : 2013.05.10
  • Published : 2013.08.01
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Abstract

In this work, buffer layers with various conditions are inserted at an n/i interface in hydrogenated amorphous silicon semitransparent solar cells. It is observed that the performance of a solar cell strongly depends on the arrangement and thickness of the buffer layer. When arranging buffer layers with various bandgaps in ascending order from the intrinsic layer to the n layer, a relatively high open circuit voltage and short circuit current are observed. In addition, the fill factors are improved, owing to an enhanced shunt resistance under every instance of the introduced n/i buffer layers. Among the various conditions during the arrangement of the buffer layers, a reverse V shape of the energy bandgap is found to be the most effective for high efficiency, which also exhibits intermediate transmittance among all samples. This is an inspiring result, enabling an independent control of the conversion efficiency and transmittance.

Keywords

References

  1. S. Yoon et al., "Application of Transparent Dye-Sensitized Solar Cells to Building Integrated Photovoltaic Systems," Building Environ., vol. 46, no. 10, Oct. 2011, pp. 1899-1904. https://doi.org/10.1016/j.buildenv.2011.03.010
  2. W.J. Lee et al., "Grid Type Dye-Sensitized Solar Cell Module with Carbon Counter Electrode," J. Photochem. Photobio. A: Chem., vol. 194, no. 1, Feb. 2008, pp. 27-30. https://doi.org/10.1016/j.jphotochem.2007.07.010
  3. J.H. Yoon, J.H. Song, and S.J. Lee, "Practical Application of Building Integrated Photovoltaic (BIPV) System Using Transparent Amorphous Silicon Thin-Film PV Module," J. Solar Energy, vol. 85, no. 5, May 2011, pp. 723-733. https://doi.org/10.1016/j.solener.2010.12.026
  4. Y.C. Lin et al., "Comparison of AZO, GZO, and AGZO Thin Films TCOs Applied for a-Si Solar Cells," J. Electrochem. Soc. vol. 159, no. 4, Apr. 2012, pp. 599-604. https://doi.org/10.1149/2.108206jes
  5. J.W. Lim, D.J. Lee, and S.J. Yun, "Semi-transparent Amorphous Silicon Solar Cells Using a Thin p-Si Layer and a Buffer Layer," ECS Solid State Lett., vol. 2, no. 6, Mar. 2013, pp. Q1-Q3.
  6. B. Vet and M. Zeman, "Relation between the Open-Circuit Voltage and the Band Gap of Absorber and Buffer Layers in a-Si:H Solar Cells," J. Thin Solid Films, vol. 516, no. 20, Aug. 2008, pp. 6873-6876. https://doi.org/10.1016/j.tsf.2007.12.050
  7. A. Shah, Ed., Thin-Film Silicon Solar Cells, Lausanne, Switzerland: EPFL Press, 2010.
  8. D. Lundszien, F. Finger, and H. Wagner, "a-Si:H Buffer in a-SiGe:H Solar Cell," J. Solar Energy Mater. Solar Cells, vol. 74, no. 1-4, Oct. 2002, pp. 365-372. https://doi.org/10.1016/S0927-0248(02)00096-X

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