DOI QR코드

DOI QR Code

전면 전극 형성 시 표면 형상이 미치는 영향 분석

Analyzing the Effect of Si Surface Morphology on Front Electrode Formation

  • 한혜빈 (신소재공학과, 고려대학교) ;
  • 최동진 (신소재공학과, 고려대학교) ;
  • 강동균 (신소재공학과, 고려대학교) ;
  • 박현정 (신소재공학과, 고려대학교) ;
  • 배수현 (신소재공학과, 고려대학교) ;
  • 강윤묵 (그린스쿨대학원, 고려대학교) ;
  • 이해석 (그린스쿨대학원, 고려대학교)
  • Han, Hyebin (Department of Materials Science and Engineering, Korea University) ;
  • Choi, Dongjin (Department of Materials Science and Engineering, Korea University) ;
  • Kang, Dongkyun (Department of Materials Science and Engineering, Korea University) ;
  • Park, HyunJung (Department of Materials Science and Engineering, Korea University) ;
  • Bae, Suhyun (Department of Materials Science and Engineering, Korea University) ;
  • Kang, Yoonmook (KU-KIST Green School Graduate School of Energy and Environment, Korea University) ;
  • Lee, Hae-Seok (KU-KIST Green School Graduate School of Energy and Environment, Korea University)
  • 투고 : 2019.09.21
  • 심사 : 2019.12.12
  • 발행 : 2019.12.31

초록

The Ag crystallite formed during the formation of the front electrode forms a contact between the metal of the electrode and the emitter of the cell. Contact between the electrode and emitter plays an important role in collecting electrons generated by the solar cell. Therefore, Ag crystallite formation is an important factor. In order for solar cells to have good characteristics, it is important to understand the factors influencing the Ag crystallite formation. Factors affecting the formation of Ag crystallites include Si emitter, morphology, Si defect and firing temperature. The influence of surface morphology on Ag crystallite formation was confirmed throughout this study. In the case of fine texturing, the Ag crystallites were formed at the pointed parts. The finer the texturing, the sharper areas and more Ag crystallites were formed. This was confirmed by SEM image and FF calculation.

키워드

참고문헌

  1. International Technology Roadmap for Photovoltatic, 10th edition:pp.1-80. 2019.
  2. Yoshikawa, K., et al., "Silicon heterojunction solar cell with interdigitated back contacts for a photoconversion efficiency over 26%", Vol. 2, No. 5, p. 17032. 2017. https://doi.org/10.1038/nenergy.2017.32
  3. Kontermann, S., et al., "Physical understanding of the behavior of silver thick-film contacts on n-type silicon under annealing conditions", Vol. 93, No. 9, pp. 1630-1635, 2009. https://doi.org/10.1016/j.solmat.2009.04.019
  4. Cabrera, E., et al., "Impact of excess phosphorus doping and Si crystalline defects on Ag crystallite nucleation and growth in silver screen-printed Si solar cells", Progress in Photovoltaics:Research and Applications, Vol. 23, No. 3, pp. 367-375, 2015. https://doi.org/10.1002/pip.2440
  5. Schubert, G., "Thick film metallisation of crystalline silicon solar cells: Mechanisms", models and applications. 2006.
  6. Kontermann, S., et al., "Characterization and modeling of contacting crystalline silicon solar cells". 2009.
  7. Horteis, M., "Fine-line printed contacts on crystalline silicon solar cells", Munchen (Dr. Hut.), 2009.
  8. Cabrera, E., et al., "Influence of Surface Topography on the Glass Coverage in the Contact Formation of Silver Screen-Printed Si Solar Cells". IEEE Journal of Photovoltaics, Vol. 3, No. 1, pp. 102-107, 2013. https://doi.org/10.1109/JPHOTOV.2012.2209406
  9. Hilali, M.M., et al., "Effect of Ag particle size in thick-film Ag paste on the electrical and physical properties of screen printed contacts and silicon solar cells". J. Electrochem. Soc., Vol. 153, No. 1, pp. A5-A11. 2006. https://doi.org/10.1149/1.2126579
  10. Horteis, M., et al., "High-temperature contact formation on n-type silicon: basic reactions and contact model for seed-layer contacts", Adv. Funct. Mater., Vol. 20, No. 3, pp. 476-484. 2010. https://doi.org/10.1002/adfm.200901305
  11. Cooper, I.B., et al., "Understanding and use of IR belt furnace for rapid thermal firing of screen-printed contacts to Si solar cells. IEEE Electron Device Letters", Vol. 31, No. 5, pp. 461-463. 2010. https://doi.org/10.1109/LED.2010.2044363
  12. Green, M.A.J.E.C., NJ, Prentice-Hall, Inc., Solar cells: operating principles, technology, and system applications, p. 288, 1982.