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Effect of nitrogen and oxygen addition on morphology and texture of diamond films (from polycrystalline to nanocrystalline)

Tang, C.J. ; Neves, A.J. ; Pereira, S. ; Fernandes, A.J.S. ; Grácio, J. ; Carmo, M.C.

Diamond and related materials, 2008, Vol.17 (1), p.72-78 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

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Título:
Effect of nitrogen and oxygen addition on morphology and texture of diamond films (from polycrystalline to nanocrystalline)
Autor: Tang, C.J. ; Neves, A.J. ; Pereira, S. ; Fernandes, A.J.S. ; Grácio, J. ; Carmo, M.C.
Assuntos: Condensed matter: structure, mechanical and thermal properties ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Fullerenes and related materials; diamonds, graphite ; Ion and electron beam-assisted deposition; ion plating ; Materials science ; Mechanical and acoustical properties ; Methods of deposition of films and coatings; film growth and epitaxy ; Microwave plasma chemical vapor deposition ; Morphology ; Nanocrystalline diamond ; Nanoscale materials and structures: fabrication and characterization ; Other topics in nanoscale materials and structures ; Oxygen and nitrogen addition ; Physical properties of thin films, nonelectronic ; Physics ; Polycrystalline diamond ; Specific materials ; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties) ; Texture
É parte de: Diamond and related materials, 2008, Vol.17 (1), p.72-78
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: We investigate the effect of simultaneous nitrogen and oxygen addition into conventional methane–hydrogen plasma on morphology and texture of diamond films produced in a high power high pressure 5 kW microwave plasma chemical vapor deposition (MPCVD) reactor. Diverse diamond films ranging from large-grained polycrystalline to nanocrystalline can be achieved by simply changing the amount of nitrogen and oxygen addition, while keeping other parameters the same. This opens a new operating window for tailoring the growth of diamond for different applications. Our study shows that: (1) a small amount of oxygen addition leads to a {111}facet dominated large-grained polycrystalline diamond film of mixed and texture; (2) a small amount of nitrogen addition favours the formation of a textured nanocrystalline diamond film; whereas (3) the coupled effect of simultaneous nitrogen and oxygen addition is in between them. The versatility of nitrogen and oxygen addition on tailoring diamond growth ranging from polycrystalline to nanocrystalline diamonds with different microstructures, morphologies and textures is clearly demonstrated.
Editor: Amsterdam: Elsevier B.V
Idioma: Inglês

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Effect of nitrogen and oxygen addition on morphology and texture of diamond films (from polycrystalline to nanocrystalline)

Tang, C.J. ; Neves, A.J. ; Pereira, S. ; Fernandes, A.J.S. ; Grácio, J. ; Carmo, M.C.

Amsterdam: Elsevier B.V

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