Nanocrystalline diamond thin

B. Fausett, M. C. Granger, M.L. Hupert, J. Wang, G. M. Swain, D. M. Gruen, The electrochemical properties of nanocrystalline diamond thin-films deposited from C60/Argon and Methane/Nitrogen gas mixtures, Electroanal., vol. 12, pp. 7-15, 2000. 

Fries MD, Vohra YK. Properties of nanocrystalline diamond thin films grown by MPCVD for biomedical implant purposes. Diam Relat Mater 2004 13 1740-3. 

Xu NS, et al. Study of field electron emission from nanocrystalline diamond thin films grown from a N2/CH4 microwave plasma. J Phys D Appl Phys 2000. 

Fig. 5 SEM images of (a) a boron-doped microcrystalline and (b) a boron-doped nanocrystalline diamond thin film grown on Si.

Fig. 10 First scan-cyclic voltammetric i—E curves for the reduction of 4-nitrophenyl diazonium tetrafluoroborate at microcrystalline and nanocrystalline diamond thin-film electrodes. Scan rate = 100 mV s h...

FIG. 2. SEM images of boron-doped (A) microcrystalline and (B) nanocrystalline diamond thin films. 

IV. CHARACTERIZATION OF MICROCRYSTALLINE AND NANOCRYSTALLINE DIAMOND THIN FILM ELECTRODES... 

FIG. 6. Carrier concentrations and mobilities (holes) in boron-doped nanocrystalline diamond thin-film electrodes as a function of the B2H6 concentration added to the source gas mixture. The measurements were made in a van der Pauw geometry with Ti contacts by Dr. Toshihiro Ando at NIMS. The limit of the temperature measurements was approximately 500 K. 

Figure 7 shows x-ray diffraction patterns for moderately boron-doped ( 10 cm ) microcrystalline and nanocrystalline diamond thin... 

FIG. 7. X-ray diffraction patterns for a boron-doped (a) microcrystalline and (b) nanocrystalline diamond thin film. 

Figure 8 shows visible-Raman spectra for moderately boron-doped ( — 10 cm ) microcrystalline and nanocrystalline diamond thin films. The spectrum for the microcrystalline film consists of the one-phonon diamond line centered at 1333 cm The line width (FWHM) is ca. 10 cm and, to a first approximation, is inversely related to the phonon lifetime [123,130]. The line position is negligibly shifted from that for a reference... 

Figure 11 shows cyclic voltammetric i-E curves for (A) Fe(CN)e ", (B) Ru(NH3)e (C) IrCl6 / (D) methyl viologen (MV ) in 1 M KCl, and (E) 4-tert-butylcatechol, and (F) Fe in 0.1 M HCIO4 at a boron-doped nanocrystalline diamond thin film electrode. The potential scan rate (v) was 0.1 V/s. The Ep for these redox systems ranges from... 

Cyclic Voltammetric Data for Aqueous-Based Redox Systems at a Boron-Doped Nanocrystalline Diamond Thin-Film Electrode... 

FIG. 16. Differential pulse anodic-stripping voltammetric curves for Ag(I), PB(II), and Cd(II) for a boron-doped nanocrystalline diamond thin-film electrode in 0.1 M acetate buffer, pH 4.5. The metal ion concentrations are (a) 10, (b) 1, and (c) 0.5 pM. Preconcentration at —1000 mV for 3 min (no stirring). (Reprinted with permission from Chem. Mater. 2003, 15, 879. Copyright (2003) American Chemical Society.) (From Ref 115.)... 

FIG. 20. Cyclic voltammetric i-E curves for 1 mM CAD, along with the corresponding background current (dashed line), in a 0.01 M borax buffer, pH 11.2, at (A) a boron-doped nanocrystalline diamond thin-film electrode and (B) a nanocrystaUine diamond thin-film electrode deposited without intentionally... 

Bennett, J.A., Y. Show, S.H. Wang et al. 2005. Pulsed galvanostatic deposition of Pt particles on microcrystalline and nanocrystalline diamond thin-film electrodes. Journal of Electrochemical Society 152 E184-E192. 

Yang W, Baker SE, Butler JE, Lee CS, Russell JN, Shang L, Sun B, Hamers RJ (2005) Electrically addressable biomolecular functionalizatirai of conductive nanocrystalline diamond thin films. Chem Mater 17 938-940... 

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