The potential efficiency of laser doped solar cells using photoluminescence imaging

Eunjoo Lee, Hyunwoo Lee, Ilhwan Kim, Junyoung Choi, Dongjun Oh, Jimyung Shim, Kyungyeun Cho, Jisun Kim, Haeseok Lee, Soohong Lee, B. Hallam, S. R. Wenham

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

1 Citation (Scopus)

Abstract

In this work we evaluate the implied open circuit voltages (iVoc) at various stages of production of laser doped selective emitter (LDSE) solar cells using photoluminescence (PL) imaging The change of the iVoc values after the laser doping (LD) has shown that this process has minimal effect on cell performance. It is also found that the order of processes such as edge junction isolation and silicon nitride is of critical importance prior to light induced plating. If these processes are not performed in the correct order, localised shunts may form during the light induced plating (LIP) process which then inhibits plating near the edge of the cells. In this work, an impressive efficiency of 18.3% has been achieved, even though the fill factor was only 74.2% and the cell suffered from additional shading losses due to overplating. With the optimization of the LD and metallization processes cells have the potential to reach efficiencies of more than 19.2% on full size commercial substrates.

Original languageEnglish
Title of host publicationProgram - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
Pages1436-1439
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

Fingerprint

Plating
Solar cells
Photoluminescence
Imaging techniques
Lasers
Doping (additives)
Open circuit voltage
Metallizing
Silicon nitride
Substrates

ASJC Scopus subject areas

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

Cite this

Lee, E., Lee, H., Kim, I., Choi, J., Oh, D., Shim, J., ... Wenham, S. R. (2010). The potential efficiency of laser doped solar cells using photoluminescence imaging. In Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010 (pp. 1436-1439). [5614424] (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2010.5614424

The potential efficiency of laser doped solar cells using photoluminescence imaging. / Lee, Eunjoo; Lee, Hyunwoo; Kim, Ilhwan; Choi, Junyoung; Oh, Dongjun; Shim, Jimyung; Cho, Kyungyeun; Kim, Jisun; Lee, Haeseok; Lee, Soohong; Hallam, B.; Wenham, S. R.

Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010. 2010. p. 1436-1439 5614424 (Conference Record of the IEEE Photovoltaic Specialists Conference).

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

Lee, E, Lee, H, Kim, I, Choi, J, Oh, D, Shim, J, Cho, K, Kim, J, Lee, H, Lee, S, Hallam, B & Wenham, SR 2010, The potential efficiency of laser doped solar cells using photoluminescence imaging. in Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010., 5614424, Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 1436-1439, 35th IEEE Photovoltaic Specialists Conference, PVSC 2010, Honolulu, HI, United States, 10/6/20. https://doi.org/10.1109/PVSC.2010.5614424
Lee E, Lee H, Kim I, Choi J, Oh D, Shim J et al. The potential efficiency of laser doped solar cells using photoluminescence imaging. In Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010. 2010. p. 1436-1439. 5614424. (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2010.5614424
Lee, Eunjoo ; Lee, Hyunwoo ; Kim, Ilhwan ; Choi, Junyoung ; Oh, Dongjun ; Shim, Jimyung ; Cho, Kyungyeun ; Kim, Jisun ; Lee, Haeseok ; Lee, Soohong ; Hallam, B. ; Wenham, S. R. / The potential efficiency of laser doped solar cells using photoluminescence imaging. Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010. 2010. pp. 1436-1439 (Conference Record of the IEEE Photovoltaic Specialists Conference).
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