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Showing papers in "Diamond and Related Materials in 2009"


Journal ArticleDOI
TL;DR: In this paper, the authors summarize the most relevant contributions in the development of electrochemical sensors based on carbon materials in the recent years and highlight the advantages of these carbon materials to promote different electron transfer reactions specially those related to biomolecules.

247 citations


Journal ArticleDOI
TL;DR: In this article, an analysis of the colloidal stability of detonation nanodiamonds hydrosols, which have undergone different surface modifications, is presented based on zeta potential measurements and titration experiments.

221 citations


Journal ArticleDOI
TL;DR: In this paper, the authors found that NDs with a diameter of around 50nm predominantly accumulated in liver after intravenous injection to mouse and Spleen and lung were also target organs for NDs.

175 citations


Journal ArticleDOI
TL;DR: In this article, an inductively coupled plasma (ICP) etching using an Ar/Cl gas mixture is demonstrated to remove sub-surface damage of mechanically processed surfaces, whilst maintaining macroscopic planarity and low roughness on a microscopic scale.

158 citations


Journal ArticleDOI
TL;DR: In this paper, the authors demonstrate that the incorporation of multi-walled carbon nanotubes (MWCNTs) into a TiO2 active layer contributes to a significant improvement in the energy conversion efficiency of dye-sensitized solar cells.

146 citations


Journal ArticleDOI
TL;DR: In this paper, phosphorus-doped polycrystalline diamond films on metallic substrates were prepared by plasma assisted chemical vapor deposition where negative electron affinity (NEA) surface characteristics was induced by exposure of the film surface to a hydrogen plasma Thermionic electron emission measurements in an UHV environment were conducted with respect to the Richardson-Dushman relation observing an emission current at temperatures b375 °C without significant reduction in the electron emission current indicating a stable hydrogen passivation of the diamond surface.

136 citations


Journal ArticleDOI
TL;DR: In this article, an ultra-smooth composite diamond (USCD) film consisting of a layer of fine-grained microcrystalline diamond (MCD) and multiply layers of nanocrystalline (NCD) films is deposited on Co-cemented tungsten carbide (WC-6 wt.% Co) substrate.

111 citations


Journal ArticleDOI
TL;DR: In this article, the antibacterial activity of DLC, Ag-DLC and silver colloidal solution were evaluated by bacterial eradication tests with Escherichia coli ( E. coli ) at different incubation times.

108 citations


Journal ArticleDOI
TL;DR: In this paper, the growth kinetics study of structures of nano-diamonds embedded in sp2 carbon synthetized by this method is discussed, and the presence of nanodiamonds has been confirmed by Raman spectroscopy as well as TEM analysis.

102 citations


Journal ArticleDOI
TL;DR: In this article, a 3D geometrical model is employed to predict the crystal shape under given growth conditions, and exploit this knowledge to devise a growth strategy maximizing the usable film surface area while minimizing stresses inside the films.

101 citations


Journal ArticleDOI
TL;DR: In this article, the microstructural, electrical and electrochemical properties of boron-doped (ultra-nanocrystalline diamond (UNCD) films deposited from a CH4/H2/Ar source gas mixture were compared with those of BORON-Doped nanocrystallines diamond (NCD) films grown from a conventional CH4 /H2 source gas mixtures.

Journal ArticleDOI
Fanghong Sun1, Y.P. Ma1, Bin Shen1, Zhiming Zhang1, Ming Chen1 
TL;DR: In this paper, a new process is used to deposit nano-micro-crystalline composite diamond coatings by a two-step hot filament chemical vapor deposition (HFCVD) procedure.

Journal ArticleDOI
TL;DR: In this article, the authors present the new developments on wide bandgap materials at the Royal Observatory of Belgium (ROB) and present also the LYRA instrument, the BOLD project, and the EUI instrument suite.

Journal ArticleDOI
TL;DR: In this article, Nanocrystalline diamond (NCD) films with a thickness of approximately 6 microm and with average grain sizes ranging from 60 to 9 nm were deposited on silicon wafers using a hot-filament chemical vapor deposition (HFCVD) process.

Journal ArticleDOI
TL;DR: In this paper, a single-crystal CVD diamond was successfully annealed by LPHT methods without graphitization up to 2200 C and < 300 Torr for periods of time ranging from a fraction of minute to a few hours.

Journal ArticleDOI
TL;DR: In this paper, a high concentration of N-V-N-N (or H3) centers was found in green fluorescent nanodiamonds (denoted as gFNDs) for use as cellular markers and labels.

Journal ArticleDOI
TL;DR: In this article, a mechanism of self polarization in the energy-minimized nanodiamond crystals in terms of orbital interactions through space and bond is presented, which is unique to nanocrystals.

Journal ArticleDOI
TL;DR: In this paper, the effect of ion implantation and annealing on the microstructure was studied in (100) diamond substrates Si + implanted at 1.MeV.

Journal ArticleDOI
TL;DR: In this paper, the presence of surface carbide phases in related catalytic reactions could account for the observation of carbide peaks in X-ray photoemission (XPS) and in-situ transmission electron microscopy studies.

Journal ArticleDOI
TL;DR: In this article, the adsorption of a few amino acids on (10, 0) carbon nanotubes (CNTs) were investigated through calculations within density functional theory based methods.

Journal ArticleDOI
TL;DR: In this paper, a bio-sensing platform is introduced by combination of geometrically controlled DNA bonding using vertically aligned diamond nano-wires and the superior electrochemical sensing properties of diamond as transducer material.

Journal ArticleDOI
TL;DR: In this paper, the authors demonstrate controlled synthesis of spatially isolated high quality micro- and nano-diamonds using a microwave plasma chemical vapor deposition technique (MPCVD).

Journal ArticleDOI
TL;DR: In this article, the fabrication of graphitic microstructures in the bulk of diamond using 120-fs-laser pulses at 800-nm wavelength was reported, where high-aspect-ratio graphitic wires were fabricated.

Journal ArticleDOI
TL;DR: In this paper, the influence of fluorine content on self-bias voltage, deposition rate, and composition, bonding structure, surface energy, hardness, stress and surface roughness were investigated and correlated with fluorine.

Journal ArticleDOI
TL;DR: In this article, a half-inch single-crystal CVD diamond seed crystal was successfully synthesized and a halfinch freestanding singlecrystal diamond plate was produced from the seed.

Journal ArticleDOI
TL;DR: In this paper, CNT-ZnO composite materials were successfully grown by thermal chemical vapor deposition (thermal CVD) in the temperature range of 500-700 °C.

Journal ArticleDOI
TL;DR: Fluorescent nanodiamonds as specifically targeted probes to image the interactions of transferrins with their receptors that were over-expressed on HeLa cells were studied and show that the surface effects of chemical interactions on the emission center of FND are negligible.

Journal ArticleDOI
TL;DR: In this article, the requirements for using carbon nanotubes as interconnects in future integrated circuits are defined and growth techniques and some methods of their characterisation are described, as well as the need to grow Nanotubes on conducting metal substrates is pointed out.

Journal ArticleDOI
TL;DR: In this article, the defect bands due to polishing and etching were measured as a function of surface treatments by cathodoluminescence (CL) and photoluminecence (PL) spectroscopy.

Journal ArticleDOI
R. Jones1
TL;DR: The brown colouration of both natural and CVD diamond has attracted attention in recent years due to the ease by which it can be annealed out and thereby making the diamond more valuable as mentioned in this paper.