Improved front side metallization for laser doped solar cells

Ji Sun Kim, Hyun Woo Lee, Jeong Eun Shin, Eun Joo Lee, Jun Young Choi, Ji Myung Shim, Dong Joon Oh, Kyeong Yeon Cho, Ji Hyun Kong, Jae Keun Seo, Ji Soo Kim, Soo Hong Lee, Hae Seok Lee, B. Hallam, S. R. Wenham

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

A simple but effective way to create a selective emitter is by using laser doping (LD) to selectively remove the anti-reflection coating (ARC) layer and simultaneously melt the silicon underneath it while incorporating dopants into the melted region, creating a heavily doped layer. In conjunction with LD, a plating technique is often used to selectively plate self-aligned metal contacts onto the laser doped lines. For light induced plating (LIP), the significant advantage compared to ordinary electroplating processes is that no electrical contacts are required to be connected to the front side metal grid as the illuminated solar cell itself generates the required current serving as both the cathode and anode of the reaction. This is also the reason why this plating technique has the potential to provide a very uniform layer provided a reasonably uniform light source is used to illuminate the cell surface. In this paper, we have improved the front side metallization for laser doped solar cell via a pre-treatment prior to Ni plating. The cells with homogenous Ni film have higher FF, so we have obtained over 19% conversion efficiency.

Original languageEnglish
Title of host publicationProgram - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Pages1091-1094
Number of pages4
DOIs
Publication statusPublished - 2011
Event37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States
Duration: 2011 Jun 192011 Jun 24

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371

Other

Other37th IEEE Photovoltaic Specialists Conference, PVSC 2011
CountryUnited States
CitySeattle, WA
Period11/6/1911/6/24

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Kim, J. S., Lee, H. W., Shin, J. E., Lee, E. J., Choi, J. Y., Shim, J. M., Oh, D. J., Cho, K. Y., Kong, J. H., Seo, J. K., Kim, J. S., Lee, S. H., Lee, H. S., Hallam, B., & Wenham, S. R. (2011). Improved front side metallization for laser doped solar cells. In Program - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011 (pp. 1091-1094). [6186142] (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2011.6186142