Metals and materials international

The Korean Institute of Metals and Materials (대한금속재료학회)
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Role of PbO-Based Glass Frit in Ag Thick-Film Contact Formation for Crystalline Si Solar Cells

Hong, Kyoung-Kook;Cho, Sung-Bin;Huh, Joo-Youl;Park, Hyun-Jung;Jeong, Ji-Weon

  • Published : 20090400
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Abstract

The reactions between Ag pastes containing two types of PbO-based glass frits and an n-type (100) Si wafer during firing in air at 800 ${^{\circ}C}$ were investigated in order to understand the mechanism for the formation of inverted pyramidal Ag crystallites at the Si interface as well as the effect of the PbO content of the glass frit on Ag crystallite formation. Inverted pyramidal Ag crystallites were formed by the precipitation of Ag atoms dissolved in fluidized glass during the subsequent cooling process after firing. PbO in the glass frit did not participate directly in the reaction with the Si wafer. However, its content had a strong influence on the reaction rate at the glass/Si interface and, thus, on the size and distribution of the Ag crystallites. The effect of the PbO content in the glass could be understood from the higher Ag solubility and lower viscosity of the glass at the firing temperature with increasing PbO content. Based on the experimental results, a model was proposed for the formation of Ag crystallites at the glass/Si interface during the firing process of screen-printed thick-film Ag metallization.

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References

  1. R. J. S. Young and A. F. Carroll, Proc. 16th European Photovoltaic Solar Energy Conf., p. 1731, Glasgow, UK (2000)
  2. G. Schubert, F. Huster, and P. Fath, Proc. Photovoltaic in Europe Conf., p.343, Rome, Italy (2002)
  3. C. Ballif, D.M. Huljic, A. Hessler-Wyser, and G. Willeke, Proc. 29th IEEE Photovoltaic Specialists Conf., p.360, Glasgow, UK (2002)
  4. C. Ballif, D.M. Huljic, G. Willeke, and A. Hessler-Wyser, Appl. Phys. Lett. 82, 1878 (2003) https://doi.org/10.1063/1.1562338
  5. G. Schubert, F. Huster, and P. Fath, Proc. 19th European Photovoltaic Solar Energy Conf., p.813, Paris, France (2004)
  6. M. M. Hilali, B. To, and A. Rohatgi, Proc. 14th Workshop on Crystalline Silicon Solar Cell & Modules: Materials and Processes, p.109, Winter Park, Colorado (2004)
  7. M. M. Hilali, M. M. Al-Jassim, B. To, H. Mountinho, A. Rohatgi, and S. Asher, J. Electrochem. Soc. 152, 742 (2005) https://doi.org/10.1149/1.2001507
  8. M. M. Hilali, S. Srindharan, C. Khadilkar, A. Shaikh, A. Rohatgi, and S. Kim, J. Electron. Mater. 35, 2041 (2006) https://doi.org/10.1007/s11664-006-0311-x
  9. G. Schubert, F. Huster, and P. Fath, Sol. Eng. Mater. Sol. C. 90, 3399 (2006) https://doi.org/10.1016/j.solmat.2006.03.040
  10. B. Sopori, V. Mehta, P. Rupnowski, J. Appel, M. Romero, H. Moutinho, D. Domine, B. To, R. Reedy, M. Al-Jassim, A. Shaikh, N. Merchant, C. Khadilkar, D. Carlson, and M. Bennet, Proc. 17th Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes, p.93, Vail, Colorado (2007)
  11. J. Hoornstra, G. Schubert, K. Broek, F. Granek, and C. LePrince, Proc. 31st IEEE Photovoltaic Specialists Conf., p.1293, Orlando, Florida (2005)
  12. J. Hoornstra, G. Schubert, C. LePrince, G. Wahl, K. Broek, G. Granek, B. Lenkeit, and J. Horzel, 20th European Photovoltaic Solar Energy Conf., p.651, Barcelona, Spain (2005)
  13. K. K. Hong, S. B. Cho, J. S. You, J. W. Jeong, S. M. Bea, and J. Y. Huh, Sol. Ener. Mat. Sol. C. 93, 898 (2009) https://doi.org/10.1016/j.solmat.2008.10.021
  14. S. Takeda, K. Yamamoto, and K. Matsumoto, J. Non-Cryst. Solids. 265, 133 (2000) https://doi.org/10.1016/S0022-3093(99)00711-5
  15. A. J. Nijdam, J. Suchtelen, J. W. Berenschot, J. G. E. Gardeniers, and M. Elwenspoek, J. Crystal Growth 198-199, 430 (1999) https://doi.org/10.1016/S0022-0248(98)01032-X
  16. E. Vazsonyi, K. De Clercq, R. Einhaus, E. Kerschaver, K. Said, J. Poortmans, J. Szlufcik, and J. Nijs, Sol. Eng. Mater. Sol. C. 57, 179 (1999) https://doi.org/10.1016/S0927-0248(98)00180-9
  17. R. Terai and R. Hayami, J. Non-Cryst. Solids 18, 217 (1975) https://doi.org/10.1016/0022-3093(75)90022-8

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