Heat Dissipation Interfaces Based on Vertically Aligned Diamond/Graphite Nanoplatelets
authors Santos, NF; Holz, T; Santos, T; Fernandes, AJS; Vasconcelos, TL; Gouvea, CP; Archanjo, BS; Achete, CA; Silva, RF; Costa, FM
nationality International
journal ACS APPLIED MATERIALS & INTERFACES
author keywords diamond; graphite; nanoplatelets; CVD; surface area; convective cooling
keywords CHEMICAL-VAPOR-DEPOSITION; NANOCRYSTALLINE DIAMOND; RAMAN-SPECTROSCOPY; THERMAL-PROPERTIES; FIELD-EMISSION; CVD DIAMOND; NANODIAMOND; GROWTH; FILMS; CARBON
abstract Crystalline carbon-based materials are intrinsically chemically inert and good heat conductors, allowing their applications in a great variety of devices. A technological step forward in heat dissipators production can be given by tailoring the carbon phase microstructure, tuning the CV]) synthesis conditions. In this work, a rapid bottom-up synthesis of vertically aligned hybrid material comprising diamond thin platelets covered by a crystalline graphite layer was developed. A single run was designed in order to produce a high aspect ratio nanostructured carbon material favoring the thermal dissipation under convection-governed conditions. The produced material was characterized by multiwavelength Raman spectroscopy and electron microscopy (scanning and transmission), and the macroscopic heat flux was evaluated. The results obtained confirm the enhancement of heat dissipation rate in the developed hybrid structures, when compared to smooth nanocrystalline diamond films.
publisher AMER CHEMICAL SOC
issn 1944-8244
year published 2015
volume 7
issue 44
beginning page 24772
ending page 24777
digital object identifier (doi) 10.1021/acsami.5b07633
web of science category Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
subject category Science & Technology - Other Topics; Materials Science
unique article identifier WOS:000364726400045
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journal impact factor (jcr 2016): 7.504
5 year journal impact factor (jcr 2016): 7.823
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