Open AccessElectro-Deposition of Carbon Structures at Mid Voltage and Room Temperature Using Ethanol/Aqueous Solutions
Author(s) -
Jackson Tsukada,
Hudson Zanin,
Luiz C. A. Barbosa,
Gilmare A. da Silva,
Helder José Ceragioli,
Alfredo C. Peterlevitz,
Reinaldo F. Teófilo,
Vı́tor Baranauskas
Publication year - 2012
Publication title -
journal of the electrochemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.258
H-Index - 271
eISSN - 1945-7111
pISSN - 0013-4651
DOI - 10.1149/2.066203jes
Subject(s) - nanodiamond , raman spectroscopy , scanning electron microscope , carbon fibers , deposition (geology) , silicon , wafer , aqueous solution , electrolyte , analytical chemistry (journal) , chemical engineering , diamond , materials science , electrode , chemistry , nanotechnology , optoelectronics , organic chemistry , composite material , paleontology , physics , engineering , sediment , composite number , optics , biology
Direct syntheses of carbon structures including nanodiamond, microdiamond and diamond-like carbon (DLC) on silicon wafers by liquid phase electro-deposition are presented. The solution (ethanol/water) was employed as electrolyte at different concentration levels. Assays were carried out maintaining constant the electric potential between the silicon electrodes in the range of (80-300 V) at current density of approximately 2.0 mA/cm(2). Scanning electron microscopy showed that non-uniform, smooth and heterogeneous structures were produced. The structural composition was evaluated by micro-Raman spectroscopy. A mechanism for the formation of sp(3) and sp(2) hybridizations is proposed. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.066203jes] All rights reserved
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