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Título: | Nanocrystalline diamond thin films deposited by 35 kHz Ar-rich plasmas |
Autor: | López, J. M.; Gordillo Vázquez, Francisco J. CSIC ORCID ; Albella, J. M. CSIC | Fecha de publicación: | 2002 | Editor: | Elsevier | Citación: | Applied Surface Science 185: 321- 325 (2002) | Resumen: | We give evidence of nanometric size (5-15 nm) crystalline diamonds in carbon thin films obtained at low substrate temperature (15 °C) under the action of low pressure (0.1-0.3 Torr) 35kHz excited CH4/Ar (80-95%) plasmas. The decrease in Ar concentration was found to lead to higher film hardness while crystalline nanodiamonds are observed in a wide interval (1-3.5 h) of deposition times but only for very high Ar concentration (95%). The polycrystalline nanodiamond grains are found over 10-20% within an amorphous carbon matrix. It is suggested that the distribution of nanodiamond grains might be connected to the nonuniform ion energy distribution in the Ar-rich plasma generated at 35 kHz. Morphological and structural features of the deposited films were also investigated. © 2002 Elsevier Science B.V. All rights reserved. | URI: | http://hdl.handle.net/10261/57743 | DOI: | 10.1016/S0169-4332(01)00996-5 | Identificadores: | doi: 10.1016/S0169-4332(01)00996-5 issn: 0169-4332 |
Aparece en las colecciones: | (CFMAC-IO) Artículos (ICMM) Artículos |
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