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Type: Artigo de periódico
Title: Cathodic And Anodic Glow Discharge Silicon-carbon Alloys (a-si1-xcx:h) From X = 0.5 To 1: A Comparative Study By Photoemission (ups) And Photoluminescence (pl)
Author: Alvarez F.
Rovira P.I.
Bormioli M.
Souto S.
Tessler L.R.
Camargo Jr. S.S.
Abstract: Photoluminescence (PL) and ultraviolet photoelectron spectroscopy are used to study glow discharge amorphous silicon carbon alloys (a-Si1-xCx:H, 1 < x < 0.5) under different substrate biases. The samples were deposited simultaneously on substrates located at the cathode and the anode. The deposition conditions were those used to produce hard a-C:H ('diamond like'). In cathodic samples, ion bombardment enhances C sp2 bonds while in anodic samples the top of valence band is depressed. Both ion bombardment (negative bias) and electron bombardment (positive bias) decrease the PL efficiency.
Rights: fechado
Identifier DOI: 10.1016/0022-3093(95)00777-6
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

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