Improvements of Voc by selective emitter pattern optimization in screen printed crystalline Si solar cells

Kyeong Yeon Cho, Il Hwan Kim, Dong Joon Oh, Ji Myung Shim, Eun Joo Lee, Hyun Woo Lee, Jun Young Choi, Ji Sun Kim, Jeong Eun Shin, Soo Hong Lee, Haeseok Lee

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

1 Citation (Scopus)

Abstract

We present a high efficiency (η ∼ 18.5%) mono-crystalline Si solar cells (A=15.6×15.6cm2) with a selective emitter structure using a conventional diffusion process (POCl3) and screen printed contact. Especially, in this paper, we focus on the improvement of Voc by selective emitter pattern optimization. As a result, we improve about 4mV Voc as a function of heavy emitter area, investigate the cause of the Voc increase by internal quantum efficiency and life time. The fabricated solar cell with selective emitter has accomplished Voc 635.78 mV, Jsc 37.03 mA/cm2, FF 78.35%, Eff 18.45%. The result shows improvement of Voc 8 mV, Jsc 0.57 A/cm2, Eff 0.5 % in comparison with the reference cell (homogeneous emitter structure) and improvement of Voc 3.7 mV, Eff 0.1 % as a function of heavy emitter size.

Original languageEnglish
Title of host publicationProgram - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
Pages1335-1338
Number of pages4
DOIs
Publication statusPublished - 2010 Dec 20
Externally publishedYes
Event35th IEEE Photovoltaic Specialists Conference, PVSC 2010 - Honolulu, HI, United States
Duration: 2010 Jun 202010 Jun 25

Publication series

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

Other

Other35th IEEE Photovoltaic Specialists Conference, PVSC 2010
CountryUnited States
CityHonolulu, HI
Period10/6/2010/6/25

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ASJC Scopus subject areas

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

Cite this

Cho, K. Y., Kim, I. H., Oh, D. J., Shim, J. M., Lee, E. J., Lee, H. W., Choi, J. Y., Kim, J. S., Shin, J. E., Lee, S. H., & Lee, H. (2010). Improvements of Voc by selective emitter pattern optimization in screen printed crystalline Si solar cells. In Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010 (pp. 1335-1338). [5614358] (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2010.5614358