James A Smith

2021

Imaging and Modeling C₂ Radical Emissions from Microwave Plasma-Activated Methane/Hydrogen Gas Mixtures: Contributions from chemiluminescent reactions and investigations of higher-pressure effects and plasma constriction

Gore, J. P. P., Mahoney, E. J. D., Smith, J. A., Ashfold, M. N. R. & Mankelevich, Y. A., 20 May 2021, In: Journal of Physical Chemistry A. 125, 19, p. 4184-4199 16 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

1 Citation (Scopus)

2020

Evidence informing the UK's COVID-19 public health response must be transparent

36 signatories, 28 Mar 2020, In: Lancet. 395, 10229, p. 1036-1037 2 p.

Research output: Contribution to journal › Comment/debate (Academic Journal)

29 Citations (Scopus)

Pulsed laser deposition of single phase n- and p-type Cu2O thin films with low resistivity

Farhad, S. F. U., Cherns, D., Smith, J., Fox, N. & Fermin, D., 1 Aug 2020, In: Materials and Design. 193, 9 p., 108848.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Open Access

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10 Citations (Scopus)

97 Downloads (Pure)

2019

Characterisation of thermionic emission current with a laser-heated system

Dominguez-Andrade, H., Croot, A., Wan, G., Smith, J. A. & Fox, N. A., 5 Apr 2019, In: Review of Scientific Instruments. 90, 4, p. 045110 7 p., 045110.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Open Access

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4 Citations (Scopus)

128 Downloads (Pure)

Studies of Black Diamond as an antibacterial surface for Gram Negative bacteria: the interplay between chemical and mechanical bactericidal activity

Dunseath, O., Smith, E., Al-Jeda, T., Smith, J., King, S., May, P., Nobbs, A., Hazell, G., Welch, C. & Su, B., 19 Jun 2019, In: Scientific Reports. 9, 1, 10 p., 8815.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Open Access

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17 Citations (Scopus)

180 Downloads (Pure)

2017

Beta Radiation Enhanced Thermionic Emission from Diamond Thin Films

Croot, A., Wan, G., Rowan, A., Andrade, H. D., Smith, J. A. & Fox, N. A., Nov 2017, In: Frontiers in Mechanical Engineering.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

7 Citations (Scopus)

2015

Measurement of the secondary electron emission from CVD diamond films using phosphor screen detectors

Vaz, R. M. A., May, P. W., Fox, N. A., Harwood, C. J., Chatterjee, V., Smith, J. A., Horsfield, C. J., Lapington, J. S. & Osbourne, S., 3 Mar 2015, In: Journal of Instrumentation. 10, March 2015, 18 p., P03004 .

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Open Access

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5 Citations (Scopus)

287 Downloads (Pure)

2009

On the mechanism of H atom production in hot filament activated H₂ and CH₄/H₂ gas mixtures

Comerford, D. W., Smith, J. A., Ashfold, M. N. R. & Mankelevich, Y. A., 28 Jul 2009, In: Journal of Chemical Physics. 131, 4, p. - 12 p., 044326.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

26 Citations (Scopus)

2008

785 nm Raman spectroscopy of CVD diamond films

May, PW., Smith, JA. & Rosser, KN., Feb 2008, In: Material Research Society Symposium Proceedings. 1039, Symposium P, p. 199 - 203 5 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

32 Citations (Scopus)

Boron Doping of Microcrystalline and Nanocrystalline Diamond Films: Where is the Boron Going?

May, PW., Ludlow, WJ., Hannaway, M., Smith, JA., Rosser, KN. & Heard, PJ., 2008, In: Material Research Society Symposium Proceedings. 1039, Symposium P, p. 29 - 37 9 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

4 Citations (Scopus)

Filament seasoning and its effect on the chemistry prevailing in hot filament activated gas mixtures used in diamond chemical vapour deposition

Comerford, DW., D'Haenens-Johansson, UFS., Smith, JA., Ashfold, MNR. & Mankelevich, YA., Jan 2008, In: Thin Solid Films. 516, p. 521 - 525 5 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

11 Citations (Scopus)

Multi-wavelength Raman spectroscopy of nanodiamond particles

May, PW., Overton, P., Smith, JA. & Rosser, KN., 2008, In: Material Research Society Symposium Proceedings. 1039, Symposium P, p. 69 - 75 7 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

5 Citations (Scopus)

Raman and conductivity studies of boron-doped microcrystalline diamond, facetted nanocrystalline diamond and cauliflower diamond films

May, PW., Ludlow, WJ., Hannaway, M., Heard, PJ., Smith, JA. & Rosser, KN., Feb 2008, In: Diamond and Related Materials. 17 (2), p. 105 - 117 13 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

217 Citations (Scopus)

2007

Growth of diamond nanocrystals by pulsed laser ablation of graphite in liquid

Yang, L., May, PW., Yin, L., Smith, JA. & Rosser, KN., Dec 2007, In: Diamond and Related Materials. 16, p. 725 - 729 5 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

103 Citations (Scopus)

Multi-wavelength Raman spectroscopy of nanodiamond particles

May, PW., Overton, P., Smith, JA. & Rosser, KN., Nov 2007, MRS Fall Symposium in Boston. Vol. 1039. 7 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

Raman and conductivity studies of boron doped microcrystalline diamond, facetted nanocrystalline diamond and cauliflower diamond films

May, PW., Ludlow, WJ., Hannaway, M., Heard, PJ., Smith, JA. & Rosser, KN., Sep 2007, In: Chemical Physics Letters. 446, p. 103 - 108 6 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

37 Citations (Scopus)

Symmetric organization of self-assembled carbon nitride

Yang, L., May, PW., Yin, L., Huang, Y., Smith, JA. & Scott, TB., Aug 2007, In: Nanotechnology. 18 (33, 335605), p. 1 - 5 5 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

9 Citations (Scopus)

Ultra fine Carbon Nitride Nanocrystals Synthesized by Laser Ablation in Liquid Solution

Yang, L., May, PW., Yin, L., Smith, JA. & Rosser, KN., Oct 2007, In: Journal of Nanoparticle Research. 9, p. 1181 - 1185 5 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

42 Citations (Scopus)

2006

Application of a quantum cascade laser for time resolved, in situ probing of CH₄/H₂ and C₂H₂/H₂ gas mixtures during microwave plasma enhanced chemical vapour deposition of diamond

Cheesman, A., Smith, JA., Ashfold, MNR., Langford, N., Wright, S. & Duxbury, G., Apr 2006, In: Journal of Physical Chemistry A. 110, p. 2821 - 2828 7 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

39 Citations (Scopus)

Deposition of CVD diamond onto GaN

May, PW., Tsai, H-Y., Wang, WN. & Smith, JA., Apr 2006, In: Diamond and Related Materials. 15, p. 526 - 530 4 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

42 Citations (Scopus)

Deposition of NCD films using hot filament CVD and Ar/CH₄/H₂ gas mixtures

May, PW., Smith, JA. & Mankelevich, YA., Feb 2006, In: Diamond and Related Materials. 15, p. 345 - 352 7 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

83 Citations (Scopus)

Experimental and modeling studies of B atom number density distributions in hot filament activated B₂H₆/H₂ and B₂H₆/CH₄/H₂ gas mixtures

Comerford, DW., Cheesman, A., Carpenter, TPF., Davies, DME., Fox, NA., Sage, RS., Smith, JA., Ashfold, MNR. & Mankelevich, YA., Mar 2006, In: Journal of Physical Chemistry A. 110 (9), p. 2868 - 2875 8 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

36 Citations (Scopus)

Growth and characterization of self-assembled carbon nitride leaf-like nanostructures

Yang, L., May, PW., Yin, L., Scott, TB., Smith, JA. & Rosser, KN., Nov 2006, In: Nanotechnology. 17, p. 5798 - 5804 7 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

19 Citations (Scopus)

Reevaluation of the mechanism for ultrananocrystalline diamond deposition from Ar/CH₄/H₂ gas mixtures

May, PW., Harvey, JN., Smith, JA. & Mankelevich, YA., May 2006, In: Journal of Applied Physics. 99 (10), p. 104907:1 - 104907:11 11 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

90 Citations (Scopus)

2005

Measurement and modeling of a diamond deposition reactor: hydrogen atom and electron number densities in an Ar/H₂ arc jet discharge

Rennick, CJ., Engeln, R., Smith, JA., Orr-Ewing, AJ., Ashfold, MNR. & Mankelevich, YA., Jun 2005, In: Journal of Applied Physics. 97 (11), p. 113306-1 - 113306-15 15 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

20 Citations (Scopus)

2004

Cavity ring-down spectroscopy measurements of the concentrations of C₂(X¹Σ_g⁺) radicals in a DC arc jet reactor used for chemical vapour deposition of diamond films

Rennick, CJ., Smith, JA., Ashfold, MNR. & Orr-Ewing, AJ., 2004, In: Chemical Physics Letters. 383, p. 518 - 522

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Improved characterisation of C₂ and CH radical number density distributions in a DC arc jet used for diamond chemical vapour deposition

Rennick, CJ., Smith, AG., Smith, JA., Wills, JB., Orr-Ewing, AJ., Ashfold, MNR., Mankelevich, Y. & Suetin, NV., 2004, In: Diam.Rel.Mater. 13, p. 561 - 568

Research output: Contribution to journal › Article (Academic Journal) › peer-review

16 Citations (Scopus)

Production of nanocrystalline diamond by laser ablation at the solid/liquid interface

Pearce, S., Henley, SJ., Claeyssens, F., May, PW., Hallam, KR., Smith, JA. & Rosser, KN., 2004, In: Diamond and Related Materials. 13, p. 661 - 665

Research output: Contribution to journal › Article (Academic Journal) › peer-review

107 Citations (Scopus)

2003

Chemical kinetics in carbon depositing d.c.-arc jet CVD reactors

Mankelevich, YA., Suetin, NV., Ashfold, MNR., Boxford, WE., Orr-Ewing, AJ., Smith, JA. & Wills, JB., 2003, In: Diamond Rel.Mater. 12, p. 383 - 390

Research output: Contribution to journal › Article (Academic Journal) › peer-review

37 Citations (Scopus)

2002

Effects of NH₃ and N₂ additions to hot filament activated CH₄/H₂ gas mixtures

Smith, J. A., Wills, J. B., Moores, H. S., Orr-Ewing, A. J., Ashfold, M. N. R., Mankelevich, Y. A. & Suetin, N. V., 15 Jul 2002, In: Journal of Applied Physics. 92, 2, p. 672-681 10 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

48 Citations (Scopus)

Investigations of the gas phase chemistry in a hot filament CVD reactor operating with CH₄/N₂/H₂ and CH₄/NH₃/H₂ gas mixtures

Mankelevich, Y., Suetin, NV., Smith, JA. & Ashfold, MNR., 2002, In: Diamond.Relat.Mater. 11, p. 567 - 572

Research output: Contribution to journal › Article (Academic Journal) › peer-review

21 Citations (Scopus)

Measurements of C₂ and CH concentrations and temperatures in a dc arc jet using cavity ring-down spectroscopy

Wills, JB., Smith, JA., Boxford, WE., Elks, JMF., Ashfold, MNR. & Orr-Ewing, AJ., Oct 2002, In: Journal of Applied Physics. 92 (8), p. 4213 - 4222 10 p.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

44 Citations (Scopus)

2001

Diamond deposition in a DC-arc jet CVD system; investigations of the effects of nitrogen addition

Smith, JA., Rosser, KN., Yagi, H., Wallace, MI., May, PW. & Ashfold, MNR., 2001, In: Diamond Rel. Mat. 10, p. 370 - 375

Research output: Contribution to journal › Article (Academic Journal) › peer-review

26 Citations (Scopus)

Experimental data vs 3-D model calculations of HFCVD processes: Correlations and discrepancies

Mankelevich, YA., Suetin, NV., Ashfold, MNR., Smith, JA. & Cameron, E., 2001, In: Diamond Rel. Mater. 10, p. 364 - 369

Research output: Contribution to journal › Article (Academic Journal) › peer-review

30 Citations (Scopus)

On the mechanism of CH₃ radical formation in hot filament activated CH₄/H₂ and C₂H₂/H₂ gas mixtures

Smith, JA., Cameron, E., Ashfold, MNR., Mankelevich, YA. & Suetin, NV., 2001, In: Diamond Rel. Mater. 10, p. 358 - 363

Research output: Contribution to journal › Article (Academic Journal) › peer-review

38 Citations (Scopus)

Unravelling aspects of the gas phase chemistry involved in diamond chemical vapour deposition

Ashfold, MNR., May, PW., Petherbridge, JR., Rosser, KN., Smith, JA., Mankelevich, YA. & Suetin, NV., 2001, In: Physical Chemistry Chemical Physics. 3, p. 3471 - 3485

Research output: Contribution to journal › Article (Academic Journal) › peer-review

85 Citations (Scopus)

2000

Resonance Enhanced Multiphoton Ionisation Probing of H atoms and CH₃ Radicals in a Hot Filament Chemical Vapour Deposition Reactor

Smith, JA., Cook, PA., Langford, SR., Redman, SA. & Ashfold, MNR., 2000, In: Thin Solid Films. 368, p. 169 - 175

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Dr James A Smith

Research output

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