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, Hae Seok 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
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

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'The potential efficiency of laser doped solar cells using photoluminescence imaging'. Together they form a unique fingerprint.

  • Cite this

    Lee, E., Lee, H., Kim, I., Choi, J., Oh, D., Shim, J., Cho, K., Kim, J., Lee, H. S., Lee, S., Hallam, B., & 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