Nanodiamond film with ‘ridge’ surface profile for chemical sensing

Raina, Supil; Kang, W.P.; Davidson, J.L.

doi:10.1016/j.diamond.2007.12.027

Cited by 28 publications

(26 citation statements)

References 15 publications

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“…Besides N-UNCD synthesized in Ar-diluted CH 4 , with N 2 additives, MPECVD in H 2 -diluted CH 4 with N 2 additives has also been reported to synthesize N-UNCD. In the latter case, surface morphology of N-UNCD displaying sharp “ridge-like” microstructures was reported23. Although nitrogen is incorporated mainly in the grain boundaries of N-UNCD, nitrogen has been known to be a deep donor for diamond and also dope graphene and carbon nanowalls along with various kinds of defects in the graphene lattice structure2425.…”

mentioning

confidence: 94%

Nitrogen-incorporated ultrananocrystalline diamond and multi-layer-graphene-like hybrid carbon films

Tzeng

Yeh

Fang

et al. 2014

Sci Rep

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Nitrogen-incorporated ultrananocrystalline diamond (N-UNCD) and multi-layer-graphene-like hybrid carbon films have been synthesized by microwave plasma enhanced chemical vapor deposition (MPECVD) on oxidized silicon which is pre-seeded with diamond nanoparticles. MPECVD of N-UNCD on nanodiamond seeds produces a base layer, from which carbon structures nucleate and grow perpendicularly to form standing carbon platelets. High-resolution transmission electron microscopy and Raman scattering measurements reveal that these carbon platelets are comprised of ultrananocrystalline diamond embedded in multilayer-graphene-like carbon structures. The hybrid carbon films are of low electrical resistivity. UNCD grains in the N-UNCD base layer and the hybrid carbon platelets serve as high-density diamond nuclei for the deposition of an electrically insulating UNCD film on it. Biocompatible carbon-based heaters made of low-resistivity hybrid carbon heaters encapsulated by insulating UNCD for possible electrosurgical applications have been demonstrated.

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mentioning

confidence: 94%

Nitrogen-incorporated ultrananocrystalline diamond and multi-layer-graphene-like hybrid carbon films

Tzeng

Yeh

Fang

et al. 2014

Sci Rep

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“…This linear relationship indicates that the electrodes form a good ohmic contact. The photoresponsivity of this photodetector 3b, in order to characterize the on-off ratio of the photodetector, the photocurrent response of the device under the different bias voltages (2,4,5,6,8,10,15, and 20 V) were studied when the lighting is repeatedly turned on and off. When the bias voltage is 8 V, the highest on/off ratio is 1.619, and the highest on/off ratio at this time is the largest.…”

Section: Optoelectronic Performance Analysismentioning

confidence: 99%

“…According to the different grain size, there are microcrystalline diamond (MCD) [1] and nanocrystalline diamond (NCD). [2] Diamond crystals are potential candidates for quantum computing, biosensing field emission devices, thermionic solar cells, and other fields. [3,4] Solar-blind photodetectors are developed in wide band gap semiconductors such as AlGaN, [5] ZnMgO, [6] and diamond, [7] which have the advantage of high radiation hardness.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic and Optoelectronic Properties of Polycrystalline Diamond

Hao

Cheng

Zhao

et al. 2021

Crystal Research and Technology

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Polycrystalline diamonds are grown by microwave plasma chemical vapor deposition techniques. The structures and morphologies are investigated by X-ray diffraction, Raman, and atomic force microscope. The photocatalytic characterizations show that diamond has a certain degradation ability for rhodamine B, and the degradation rate of nanocrystalline diamond is faster than that of microcrystalline diamond. Diamond based photoconductor-type photodetector with Au electrode is prepared and it shows high photoresponsivity. This research has opened up new opportunities for diamond in various fields including photocatalysis and photodetectors.

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“…Conductive diamond electrodes have attracted much attention due to their unique electrochemistry and chemical as well as physical properties, such as wide working potential window, low and stable background current in aqueous and non-aqueous solutions, high chemical and electrochemical stabilities, excellent corrosion resistance, morphological and micro-structural stability at extreme anodic and cathodic potentials, low adsorption of polar molecules from aqueous solutions, and long-term response stability [22][23][24].…”

Section: Introductionmentioning

confidence: 99%