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Photoluminescence and sub band gap absorption of CuGaSe2 thin films

✍ Scribed by A. Meeder; D. Fuertes Marrón; V. Chu; J.P. Conde; A. Jäger-Waldau; A. Rumberg; M.Ch. Lux-Steiner


Book ID
114085389
Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
121 KB
Volume
403-404
Category
Article
ISSN
0040-6090

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Near-infrared absorption spectra of p-type CuGaTe2 and CuGaSe2 thin films deposited by thermal evaporation were measured at room temperature. Two structures were found in the spectra in the photon energy range from hv=0.4-1.5 eV. One of them is the free carrier absorption below 0.6 eV in which the a