High-efficiency grid-type Si solar cell structure

Seok Joo Byun, Seok Yong Byun, Jangkyo Lee, Taek Sung Lee, Won Mok Kim, Kyuman Cho, Dongwoo Sheen, Sung Ju Tark, Donghwan Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The demand to reduce Si usage in Si photovoltaic cells in order to improve the cost-effectiveness is ever-increasing in photovoltaic industry. In this study, we propose a new Si photovoltaic cell structure, in which Si grids are formed and reflectors are positioned in between. The optical absorption efficiency of the proposed cell structure was analyzed by making comparisons with simple Si cells with flat and textured surfaces. A quantitative analysis of the optical absorption was made by using a direct absorption calculation algorithm based on the three-dimensional modeling and ray-tracing technique. The proposed grid-type cell structure was shown to be able to yield an improvement in the absorption efficiency per unit Si volume as high as 91% when compared to typical Si cells with pyramidal surface texturing.

Original languageEnglish
Pages (from-to)2075-2078
Number of pages4
JournalJournal of the Korean Physical Society
Volume60
Issue number12
DOIs
Publication statusPublished - 2012 Jun

Keywords

  • Grid-type
  • Optical design
  • Ray tracing
  • Reflector
  • Si photovoltaic cells
  • Texture

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Byun, S. J., Byun, S. Y., Lee, J., Lee, T. S., Kim, W. M., Cho, K., Sheen, D., Tark, S. J., & Kim, D. (2012). High-efficiency grid-type Si solar cell structure. Journal of the Korean Physical Society, 60(12), 2075-2078. https://doi.org/10.3938/jkps.60.2075