High Performance CIGS Thin-Film Solar Cells: A Laboratory Perspective

Research output: Contribution to conferencePaper

Abstract

We present a summary of our work on the preparation of CuInGaSe2 (CIGS) absorbers that has led to fabricating record-efficiency solar cells. The use of the three-stage process in conjunction with composition monitoring facilitates the fabrication of solar cells with efficiencies between 18% and 19.5% for absorber bandgap in the range of 1.1-1.2 eV. We describe our recent results in reducingabsorber thickness and low-temperature deposition. Our preliminary results on absorbers grown from low-purity source materials show promise of reducing the cost of fabricating the absorber.
Original languageAmerican English
Number of pages5
StatePublished - 2005
Event2005 DOE Solar Energy Technologies Program Review Meeting - Denver, Colorado
Duration: 7 Nov 200510 Nov 2005

Conference

Conference2005 DOE Solar Energy Technologies Program Review Meeting
CityDenver, Colorado
Period7/11/0510/11/05

Bibliographical note

Presented at the 2005 DOE Solar Energy Technologies Program Review Meeting held November 7-10, 2005 in Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102006-2245; NREL/CD-520-38557)

NREL Publication Number

  • NREL/CP-520-38987

Keywords

  • CIGS
  • NREL
  • photovoltaics (PV)
  • PV
  • solar
  • thin films

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