Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1664895 | Thin Solid Films | 2015 | 6 Pages |
Abstract
This work reports that the composition of Cu(In,Ga)Se2 (CIGS) thin solar cell films can be quantitatively predicted with high accuracy and precision by femtosecond laser ablation-inductively coupled plasma-mass spectrometry (fs-LA-ICP-MS). It is demonstrated that the results are strongly influenced by sampling conditions during fs-laser beam (λ = 1030 nm, Ï = 450 fs) scanning on the CIGS surface. The fs-LA-ICP-MS signals measured at optimal sampling conditions generally provide a straight line calibration with respect to the reference concentrations measured by inductively coupled plasma optical emission spectroscopy (ICP-OES). The concentration ratios predicted by fs-LA-ICP-MS showed high accuracy, to 95-97% of the values measured with ICP-OES, for Cu, In, Ga, and Se elements.
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Authors
Seokhee Lee, Jhanis J. Gonzalez, Jong H. Yoo, Jose R. Chirinos, Richard E. Russo, Sungho Jeong,