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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 21, Iss. S6 — Nov. 4, 2013
  • pp: A1018–A1027

Depth profiling analysis of CuIn1-xGaxSe2 absorber layer by laser induced breakdown spectroscopy in atmospheric conditions

Chan Kyu Kim, Seok Hee Lee, Jung Hwan In, Hak Jae Lee, and Sungho Jeong  »View Author Affiliations


Optics Express, Vol. 21, Issue S6, pp. A1018-A1027 (2013)
http://dx.doi.org/10.1364/OE.21.0A1018


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Abstract

This work reports the capability of depth profile analysis of thin CuIn1-xGaxSe2 (CIGS) absorber layer (1.89 μm) with a sub-hundred nanometer resolution by laser induced breakdown spectroscopy (LIBS). The LIBS analysis was carried out with a commercial CIGS solar cell on flexible substrate by using a pulsed Nd:YAG laser (λ = 532 nm, τ = 5 ns, top-hat profile) and an intensified charge-coupled device spectrometer in atmospheric conditions. The measured LIBS elemental profiles across the CIGS layer agreed closely to those measured by secondary ion mass spectrometry. The resolution of depth profile analysis was about 88 nm. Owing to the short measurement time of LIBS and the capability of in-air measurement, it is expected that LIBS can be applied for in situ analysis of elemental composition and their distribution across the film thickness during development and manufacturing of CIGS solar cells.

© 2013 Optical Society of America

OCIS Codes
(310.0310) Thin films : Thin films
(350.6050) Other areas of optics : Solar energy
(300.6365) Spectroscopy : Spectroscopy, laser induced breakdown

ToC Category:
Spectroscopy

History
Original Manuscript: August 22, 2013
Revised Manuscript: October 2, 2013
Manuscript Accepted: October 2, 2013
Published: October 14, 2013

Citation
Chan Kyu Kim, Seok Hee Lee, Jung Hwan In, Hak Jae Lee, and Sungho Jeong, "Depth profiling analysis of CuIn1-xGaxSe2 absorber layer by laser induced breakdown spectroscopy in atmospheric conditions," Opt. Express 21, A1018-A1027 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-S6-A1018


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