Undoped CVD diamond films for electrochemical applications

被引:10
|
作者
Mosinska, Lidia [1 ]
Fabisiak, Kazimierz [1 ]
Paprocki, Kazimierz [1 ]
Kowalska, Magdalena [2 ]
Popielarski, Pawel [1 ]
Szybowicz, Miroslaw [3 ]
机构
[1] Kazimierz Wielki Univ, Inst Phys, PL-85090 Bydgoszcz, Poland
[2] Univ Technol & Life Sci, Fac Chem Technol & Engn, PL-85326 Bydgoszcz, Poland
[3] Poznan Univ Tech, Fac Tech Phys, PL-60965 Poznan, Poland
关键词
Hot filament CVD; Microcrystalline diamond; Undoped diamond; Raman spectroscopy; SEM; Cyclic voltammetry; CHEMICAL-VAPOR-DEPOSITION; POLYCRYSTALLINE DIAMOND; DOPED DIAMOND; ELECTRODE MATERIAL; NANOCRYSTALLINE DIAMOND; CARBON NANOTUBES; SURFACE REGION; CONDUCTIVITY; SPECTROSCOPY; SUBSTRATE;
D O I
10.1016/j.electacta.2013.03.111
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
By using different deposition conditions, the CVD diamond films with different qualities and orientation were grown by the hot-filament CVD technique. The object of this article is to summarize and discuss relation between structural, physical and electrochemical properties of different diamond electrodes. The physical properties of the Hot Filament CVD microcrystalline diamond films are analyzed by scanning electron microscopy and Raman spectroscopy. In presented studies two different electrodes were used of the diamond grain sizes around 200 nm and 10 mu m, as it was estimated from SEM picture. The diamond layers quality was checked on basis of FWHM (Full width at Half Maximum) of 1332 cm(-1) diamond Raman peak. The ratio of sp(3)/sp(2) carbon bonds was determined by 1550 cm(-1) G band and 1350 cm(-1) D band in the Raman spectrum. The electrochemical properties were analyzed using (CV) cyclic voltammetry measurements in aqueous solutions. The sensitivity of undoped diamond electrodes depends strongly on diamond film quality and concentration of amorphous carbon phase in the diamond layer. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:481 / 486
页数:6
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