Implications of modified simplified hybrid process on CIGS devices and minimodules

Leena K. Sahoo, Masud Akhtar, Renata Saramak, Alan E. Delahoy

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


The simplified hybrid (SH) process is the platform on which EPV Solar will develop a cost effective CIGS module manufacturing process. We have already implemented the SH process in our large area deposition system. In this report optimization of the Na access to the absorber layer was done by controlling the Cr underlayer thickness. In addition, CIGS process parameters have been modified to get a more uniform layer attaining good efficiency throughout the substrate at lower temperature. This helped us to make minimodule using our existing equipment design. Post-CIGS treatments of samples to passivate the surface before CdS chemical bath deposition have improved our earlier samples. However, this has been found to be less beneficial for newly processed samples reducing the overall processing steps. A textured ZnO window layer deposited on the buffer layer increased device Jsc by 5% by reducing reflectance of incident light.

Original languageEnglish (US)
Title of host publication33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
StatePublished - 2008
Externally publishedYes
Event33rd IEEE Photovoltaic Specialists Conference, PVSC 2008 - San Diego, CA, United States
Duration: May 11 2008May 16 2008

Publication series

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


Other33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

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


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