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Detailed structural and electrical properties of ultra-nano-crystalline diamond (UNCD) films grown in H$_\text{2}$/CH$_\text{4}$/N$_\text{2}$ plasma were systematically studied as a function of deposition temperature ($T_d$) and nitrogen…

Materials Science · Physics 2019-10-23 Tanvi Nikhar , Robert Rechenberg , Michael Becker , Sergey V. Baryshev

Herein, we report on the improvement of structural quality and enhancement of photoluminescence (PL) emission for an optimally N doped nanocrystalline diamond (NCD) film. Pure and N doped nanocrystalline diamond films are synthesized on Si…

Materials Science · Physics 2020-06-05 K. Ganesan , P. K. Ajikumar , S. K. Srivatava , P. Magudapathy

A technique has been developed for depositing diamond crystals on the endfaces of optical fibers and capturing the fluorescence generated by optically active defects in the diamond into the fiber. This letter details the diamond growth on…

Materials Science · Physics 2007-05-23 J. R. Rabeau , S. T. Huntington , A. D. Greentree , S. Prawer

Chemical vapour deposition (CVD) grown nanocrystalline diamond is an attractive material for the fabrication of devices. For some device architectures, optimisation of its growth on silicon nitride is essential. Here, the effects of three…

The engineering of defects in diamond, particularly nitrogen-vacancy (NV) centers, is important for many applications in quantum science. A materials science approach based on chemical vapor deposition (CVD) growth of diamond and in-situ…

Control of the crystalline orientation of nitrogen-vacancy (NV) defects in diamond is here demonstrated by tuning the temperature of chemical vapor deposition (CVD) growth on a (113)-oriented diamond substrate. We show that preferential…

Materials Science · Physics 2018-07-02 S. Chouaieb , L. J. Martínez , W. Akhtar , I. Robert-Philip , A. Dréau , O. Brinza , J. Achard , A. Tallaire , V. Jacques

Although chemical vapor deposition (CVD) is one of the preferred routes to synthetic diamond crystals, a full knowledge of the point defects produced during growth is still incomplete. Here we exploit the charge and spin properties of…

Materials Science · Physics 2020-05-20 A. Lozovoi , D. Daw , H. Jayakumar , C. A. Meriles

The nitrogen-vacancy (NV) center in diamond is a promising quantum system for magnetometry applications exhibiting optical readout of minute energy shifts in its spin sub-levels. Key material requirements for NV ensembles are a high NV$^-$…

Boron-doped single crystal diamond films were grown homoepitaxially on synthetic (100) Type Ib diamond substrates using microwave plasma assisted chemical vapor deposition. A modification in surface morphology of the film with increasing…

Materials Science · Physics 2013-11-06 S. K. Karna , Y. K. Vohra , P. Kung , S. T. Weir

Nanographitic structures (NGSs) with multitude of morphological features are grown on SiO2/Si substrates by electron cyclotron resonance - plasma enhanced chemical vapor deposition (ECR-PECVD). CH4 is used as source gas with Ar and H2 as…

Materials Science · Physics 2017-04-10 Subrata Ghosh , K. Ganesan , S. R. Polaki , S. Ilango , S. Amirthapandian , S. Dhara , M. Kamruddin , A. K. Tyagi

We show that the orientation of nitrogen-vacancy (NV) defects in diamond can be efficiently controlled through chemical vapor deposition (CVD) growth on a (111)-oriented diamond substrate. More precisely, we demonstrate that spontaneously…

Materials Science · Physics 2015-06-18 M. Lesik , J. -P. Tetienne , A. Tallaire , J. Achard , V. Mille , A. Gicquel , J. -F. Roch , V. Jacques

Abstract Applications of nitrogen-vacancy (NV) centers in diamond in quantum technology have attracted considerable attention in recent years. Deterministic generation of ensembles of NV centers can advance the research on quantum sensing,…

Quantum Physics · Physics 2019-07-03 T. Chakraborty , F. Lehmann , J. Zhang , S. Borgsdorf , N. Wöhrl , R. Remfort , V. Buck , U. Köhler , D. Suter

We present a study of the structural and electronic properties of ultra-nanocrystalline diamond films that were modified by adding nitrogen to the gas mixture during chemical vapour deposition growth. Hall bar devices were fabricated from…

This paper presents findings from a study of nanocrystalline diamond (NCD) growth in a microwave plasma chemical vapour deposition (CVD) reactor. NCD films were grown using Ar/H2/CH4 and He/H2/CH4 gas compositions. The resulting films were…

Materials Science · Physics 2009-11-10 J. R. Rabeau , Y. Fan , P. John , J. I. B. Wilson

The present work deals with the synthesis of crystalline carbon nitride thin films by microwave plasma assisted chemical vapour deposition in N$_2$/CH$_4$ gas mixture. The discharge analysis by optical emission spectroscopy shows that the…

Large-area single-crystal monolayers of two-dimensional (2D) materials such as graphene and hexagonal boron nitride (h-BN) can be grown by chemical vapour deposition (CVD). However, the high temperatures and fast timescales at which the…

We demonstrate fully three-dimensional and patterned localization of nitrogen-vacancy (NV) centers in diamond with coherence times in excess of 1 ms. Nitrogen {\delta}-doping during CVD diamond growth vertically confines nitrogen to 4 nm…

Mesoscale and Nanoscale Physics · Physics 2016-05-04 Claire A. McLellan , Bryan A. Myers , Stephan Kraemer , Kenichi Ohno , David D. Awschalom , Ania C. Bleszynski Jayich

Nitrogen is frequently included in chemical vapour deposition feed gases to accelerate diamond growth. While there is no consensus for an atomistic mechanism of this effect, existing studies have largely focused on the role of sub-surface…

Materials Science · Physics 2020-11-11 Lachlan M. Oberg , Marietta Batzer , Alastair Stacey , Marcus W. Doherty

We have investigated the effect of nitrogen (N2) as a carrier gas on the growth of vertical graphene nanosheets (VGN) by plasma enhanced chemical vapor deposition (PECVD). It is demonstrated that addition of nitrogen gas with a hydrocarbon…

Applied Physics · Physics 2022-06-24 Subrata Ghosh , S. R. Polaki , Nanda Gopala Krishna , M. Kamruddin

Boron-doped diamond (BDD) films are becoming increasingly popular as electrode materials due to their broad potential window and stability in harsh conditions and environments. Therefore, optimizing the crystal quality and minimizing defect…

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