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Proceedings Paper

Pulsed laser deposition of Cd1-xMnxTe thin films
Author(s): A. P. Caricato; Emilia D'Anna; M. Fernandez; Gilberto Leggieri; Armando Luches; E. Mero; Maurizio Martino
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Paper Abstract

Cd1-xMnxTe thin films (0.6 - 0.7 μm) were deposited by laser ablation of targets with x = 0.05, 0.36, 0.43 and 0.50. Ablation was performed with a XeCl laser at a fluence of 6 J/cm2. Films were deposited on sapphire substrates placed at 40 mm from the target and heated at 250°C. Their composition results in good agreement with the one of the relative targets, except for a systematic defiance in the Cd content. The surface morphology deteriorates as Mn concentration increases. From optical transmission measurements in the 200 - 3500 nm range the band-gap energies were calculated. From photoluminescence spectroscopy only the peak at 2.0 eV, associated to the Mn2+ 6A1(6S) → 4T2(4G) transition, was detected in samples with x &tpprime;≥ 0.36.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.530040
Show Author Affiliations
A. P. Caricato, Univ. degli Studi di Lecce (Italy)
Emilia D'Anna, Univ. degli Studi di Lecce (Italy)
M. Fernandez, Univ. degli Studi di Lecce (Italy)
Gilberto Leggieri, Univ. degli Studi di Lecce (Italy)
Armando Luches, Univ. degli Studi di Lecce (Italy)
E. Mero, Univ. degli Studi di Lecce (Italy)
Maurizio Martino, Univ. degli Studi di Lecce (Italy)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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