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Advances in Absorbers and Reflectors of Amorphous Silicon Oxide Thin Film Solar Cells for Tandem Devices

적층형 태양전지를 위한 비정질실리콘계 산화막 박막태양전지의 광흡수층 및 반사체 성능 향상 기술

  • Kang, Dong-Won (Department of Solar & Energy Engineering, Cheongju University)
  • 강동원 (청주대학교 태양광에너지공학과)
  • Received : 2016.12.12
  • Accepted : 2016.12.29
  • Published : 2017.02.01

Abstract

Highly photosensitive and wide bandgap amorphous silicon oxide (a-$SiO_x$:H) films were developed at low temperature ranges ($100{\sim}150^{\circ}C$) with employing plasma-enhanced chemical vapor deposition by optimizing $H_2/SiH_4$ gas ratio and $CO_2$ flow. Photosensitivity more than $10^5$ and wide bandgap (1.81~1.85 eV) properties were used for making the a-$SiO_x$:H thin film solar cells, which exhibited a high open circuit voltage of 0.987 V at the substrate temperature of $100^{\circ}C$. In addition, a power conversion efficiency of 6.87% for the cell could be improved up to 7.77% by employing a new n-type nc-$SiO_x$:H/ZnO:Al/Ag triple back-reflector that offers better short circuit currents in the thin film photovoltaic devices.

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References

  1. S. Kim, J. W. Chung, H. Lee, J. Park, Y. Heo, and H. M. Lee, Sol. Energy Mater. Sol. Cells, 119, 26 (2013). [DOI: https://doi.org/10.1016/j.solmat.2013.04.016]
  2. J. W. Schuttauf, B. Niesen, L. Lofgren, M. Bonnet-Eymard, M.Stuckelberger, S. Hanni, M. Boccard, G. Bugnon, M. Despeisse, F. J. Haug, F. Meillaud, and C. Ballif, Sol. Energy Mater. Sol. Cells, 133, 163 (2015). [DOI: https://doi.org/10.1016/j.solmat.2014.11.006]
  3. G. W. Shu, J. Y. Lin, H. T. Jian, J. L. Shen, S. C. Wang, C. L. Chou, W. C. Chou, C. H. Wu, C. H. Chiu, and H. C. Kuo, Opt. Express, 21, A123 (2013). [DOI: https://doi.org/10.1364/OE.21.00A123]
  4. J. Sritharathikhun, S. Inthisang, T. Krajangsang, A. Limmanee, and K. Sriprapha, Thin Solid Films, 546, 383 (2013). [DOI: https://doi.org/10.1016/j.tsf.2013.05.138]
  5. J. Sritharathikhun, A. Moollakorn, S. Kittisontirak, A. Limmanee, and K. Sriprapha, Curr. Appl. Phys., 11, S17 (2011). [DOI: https://doi.org/10.1016/j.cap.2010.11.100]
  6. J. E. Lee, J. H. Park, J. Yoo, K. H. Yoon, D. Kim, and J. S. Cho, Solid State Sciences, 20, 70 (2013). [DOI: https://doi.org/10.1016/j.solidstatesciences.2013.03.015]
  7. D. W. Kang, P. Sichanugrist, and M. Konagai, Electron. Mater. Lett., 12, 451 (2016). [DOI: https://doi.org/10.1007/s13391-016-4005-0]