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Dr Tony Kenyon

D.Phil, CPhys, FInstP, MIET, MIEEE

Picture of Dr Tony Kenyon

Reader in Photonic Materials

Room 1122

Department of Electronic & Electrical Engineering

University College London

Torrington Place

London

WC1E 7JE

Research Group:Electronic Materials & Devices
Personal Web Page:Dr Tony Kenyon's Personal Web page
E-mail:t.kenyon@ee.ucl.ac.uk
Telephone:+44 (0)20 7679 3270 (33270 Internal)
Fax:+44 (0)20 7388 9325

Following a D.Phil in Chemical Physics at the University of Sussex (1992), Tony Kenyon joined the Electronic and Electrical Engineering department of University College London (UCL), where he currently holds the position of Reader. He is also the department’s Postgraduate Tutor, overseeing and coordinating PhD programmes. His research concentrates on the application of nanostructured semiconductor materials to electronics and photonics; particular areas of interest include the optical and electronic properties of silicon nanoclusters, rare-earth doped materials, Si Resistive RAM and memristors, self-assembled nanoscale systems, dislocation luminescence in silicon, and quantum confinement in optoelectronic materials. He is a Fellow of the Institute of Physics, member of the IET, the IEEE, and the Electrochemical Society, and serves on the Board of Delegates of the European Materials Research Society. He is the author of more than 60 peer-reviewed publications, and is on the editorial board of a number of journals. He has given invited talks at a number of major international meetings, and has co-organised several international symposia.

My research interests focus mainly on optical materials. I am interested in quantum confinement and other effects that make it possible to obtain light from silicon, which, although the universal semiconductor, is a very inefficient light source. By producing very small clusters of silicon atoms (around 2-5 nm in diameter), it may be possible to alter the band-structure of silicon to make it behave more like a direct bandgap semiconductor. I am interested in experimental investigation of the optical and electronic properties of these clusters, and also in modelling quantum confinement effects and cluster-cluster interactions.

I am also interested in rare-earth doped materials for use in optoelectronics; particularly erbium-doped materials used as sources or gain elements in telecommunications. The majority of optical telecommunications networks operate at a wavelength of 1.5 µm (the low-loss window in silica optical fibres). However, the most widely deployed gain element in this wavelength region, the Erbium-Doped Fibre Amplifier (EDFA), requires expensive high-power narrow-band pump sources. For the next generation of WDM and fibre-to-the home technologies, this is not a practical solution, and cheaper technologies are needed. One solution is to use erbium-doped silicon nanoclusters in a silica matrix and to exploit the very strong coupling between the broad-band absorbing silicon nanoclusters and the rare-earth ions. We have demonstrated that interaction with silicon nanoclusters produces an enormous enhancement (around four orders of magnitude) of the excitation efficiency of erbium, and we are working on understanding and optimising the material. Not only is this potentially a very useful technology, but there is also a lot of interesting physics to be done!

A third area of interest is that of plasma processing of optoelectronic and electronic materials. Most electronic and optoelectronic devices are produced using plasmas to either deposit material or etch structures on wafers or other substrates. Plasmas are notoriously complicated systems and it is often very difficult to fully understand the many inter-related parameters that control a deposition or etch process. However, in collaboration with Vic Law, the department’s clean room manager, and Nina Thornhill, I am interested in the information that can be obtained about a plasma from its RF signature. We are looking at the possibility of using this to monitor and predict process end-points and to characterise faulty equipment and/or processes.

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    2011

    • Crowe, I. F., Halsall, M. P., Hulko, O., Knights, A. P., Gwilliam, R. M., Wojdak, M., Kenyon, A. J. (2011). Probing the phonon confinement in ultrasmall silicon nanocrystals reveals a size-dependent surface energy. J APPL PHYS 109(8), 083534 doi:10.1063/1.3575181.
    • Jayatilleka, H., Diamare, D., Wojdak, M., Kenyon, A. J., Mokry, C. R., Simpson, P. J., Knights, A. P., Crowe, I., Halsall, M. P. (2011). Probing energy transfer in an ensemble of silicon nanocrystals. J APPL PHYS 110(3), 033522 doi:10.1063/1.3622151.
    • Jayatilleka, H., Nasrollahy-Shiraz, A., Kenyon, A. J. (2011). Electrically pumped silicon waveguide light sources. Optics Express 19(24), 24569-24576
    • Kenyon, A. J., Wojdak, M., Ahmed, I., Shah, M. (2011). (Invited) Sensitization of erbium photoluminescence in silicon-rich silicon dioxide – current status and future perspectives. Electrochemical Society Meeting Abstracts. ( Vol. 1101 ). Pennington, US: The Electrochemical Society. Publisher URL

    2010

    • Halsall, M. P., Crowe, I. F., Hylton, N., Hulko, O., Knights, A., Ruffell, S., Gwilliam, R., Wojdak, M., Kenyon, A. J. (2010). Novel processing for Si-nanocrystal based photonic materials. Transactions of the Electrochemical Society. ( Vol. 28 pp.3-13).
    • Jambois, O., Gourbilleau, F., Kenyon, A. J., Montserrat, J., Rizk, R., Garrido, B. (2010). Towards population inversion of electrically pumped Er ions sensitized by Si nanoclusters. Optics Express 18(3), 2230-2235 Author URL
    • Jayatilleka, H., Wojdak, M., Kenyon, A. J., Mokry, C., Simpson, P. J., Knights, A. P., Crowe, I. F., Halsall, M. P. (2010). Time-resolved PL measurements of energy transfer in an ensemble of silicon nanocrystals. E-MRS Spring 2010.
    • Kenyon, A. J. (2010). Rare-Earth Doped Photonics. In Chen, W. (Ed.). Doped Nanomaterials and Nanodevices ( ). American Scientific Publishers.
    • Thomsen, B. C., Renaud, C. C., Savory, S. J., Romans, E. J., Mitrofanov, O., Rio, M., Day, S. E., Kenyon, A. J., Mitchell, J. E. (2010). Introducing scenario based learning: Experiences from an undergraduate electronic and electrical engineering course. Education Engineering (EDUCON), 2010 IEEE. ( pp.953-958).
    • Wojdak, M., Ahmad, I., Saleh, H., Kenyon, A. J., Oton, C. J., Temple, M. P., Loh, W. H. (2010). Sensitization of erbium photoluminescence and energy migration in erbium doped silicon-rich silica. E-MRS Fall 2010.
    • Wojdak, M., Ahmad, I., Saleh, H., Kenyon, A. J., Oton, C. J., Temple, M. P., Loh, W. H. (2010). Sensitization of erbium photoluminescence in erbium doped silicon-rich silica with low Si excess. International Conference on Optical, Optoelectronic and Photonic Materials and Applications.

    2009

    • French, P. J., Kenyon, A. J., Garner, D. M. (2009). A Planar CMOS Field-Emission Vacuum Magnetic Sensor. IEEE Transactions on Electron Devices 56(4), 692-695 doi:10.1109/TED.2009.2014430.
    • Horak, P., Loh, W. H., Kenyon, A. J. (2009). Modification of the Er3+ radiative lifetime from proximity to silicon nanoclusters in silicon-rich silicon oxide. Optics Express 17(2), 906-911 doi:10.1364/OE.17.000906.
    • Jambois, O., Berencen, Y., Hijazi, K., Wojdak, M., Kenyon, A. J., Gourbilleau, F., Rizk, R., Garrido, B. (2009). Current transport and electroluminescence mechanisms in thin SiO2 films containing Si nanocluster-sensitized erbium ions. Journal of Applied Physics 106, 063526- doi:10.1063/1.3213386. Author URL
    • Jambois, O., Berencen, Y., Hijazi, K., Wojdak, M., Kenyon, A. J., Gourbilleau, F., Rizk, R., Garrido, B. (2009). Current Transport and Electroluminescence Mechanisms in Thin SiO2 Films Containing Si Nanoclusters-Sensitized Er Ion. Impurity Based Electroluminescent Devices and Materials Conference. Barcelona, Spain:
    • Jambois, O., Berencen, Y., Seo, S. -. Y., Kenyon, A. J., Wojdak, M., Gourbilleau, F., Khomekova, L., Hijazi, K., Rizk, R., Garrido, B. (2009). Study of the electroluminescence at 1.5 μm of SiOx: Er layers made by reactive magnetron sputtering. 7th Spanish Conference on Electron Devices. Santiago de Compostela: Author URL
    • Kenyon, A. J., Ahmad, I., Temple, M. P., Kallis, A., Wojdak, M., Oton, C. J., Saleh, H., Loh, W. H. (2009). (Invited) Silicon nanocluster sensitisation of erbium luminescence – time resolved measurements, nanocluster nucleation, and the role of stress. Silicon Based Emission Technologies (SiBET) 2009. Manchester:
    • Kenyon, A. J., Ahmad, I., Temple, M., Kallis, A., Wojdak, M., Oton, C. J., Saleh, H., Barbier, D., Loh, W. H. (2009). Probing the Complexities of the Sensitization of Erbium Luminescence by Silicon Nanoclusters - Time Resolved Measurements, Nanocluster Nucleation, and the Role of Stress. Electrochemical Society Meeting Abstracts. ( Vol. 901 ). Pennington, US: The Electrochemical Society. Publisher URL
    • Kenyon, A. J., Wojdak, M., Ahmad, I., Jambois, O., Gourbilleau, F., Garrido, B., Rizk, R. (2009). (Invited) Silicon Nanocluster-Sensitised Emission From Erbium – Photo- and Electro-luminescence Studies. Impurity Based Electroluminescent Devices and Materials Conference. Barcelona, Spain:
    • Steinman, E. A., Kenyon, A. J., Tereshchenko, A. N. (2009). Time-resolved measurements of dislocation-related photoluminescence bands in silicon. Physica Status Solidi (C) 6(8), 1811-1816 doi:10.1002/pssc.200881461. Author URL
    • Wojdak, M., Ahmad, I., Saleh, H., Temple, M. P., Oton, C. J., Kenyon, A. J., Loh, W. H. (2009). Long lifetime erbium luminescence sensitised by silicon nanoclusters. European Materials Research Society Spring Meeting. Strasbourg: Author URL

    2008

    • Ahmad, I., Temple, M. P., Kallis, A., Wojdak, M., Oton, C. J., Barbier, D., Saleh, H., Kenyon, A. J., Loh, W. H. (2008). Silicon nanocluster-sensitized emission from erbium: The role of stress in the formation of silicon nanoclusters. Journal of Applied Physics 104, 123108- doi:10.1063/1.3050324.
    • Jones, B. J., Kenyon, A. J. (2008). Retention of data in heat-damaged SIM cards and potential recovery methods. Forensic Science International 177, 42-46 doi:10.1016/j.forsciint.2007.10.007. Author URL
    • Kenyon, A. J. (2008). (Invited) Silicon nanoclusters as sensitisers of luminescence from erbium ions – probing the interaction. Journees Nanosciences Nord-Ouest 2008. Poitiers, France: Author URL
    • Kenyon, A. J., Wojdak, M., Ahmad, I., Loh, W. H., Oton, C. J. (2008). An Analysis of the Dynamics of Excitation Exchange between Silicon Nanoclusters and Erbium Ions. IUMRS-ICEM 2008. Sydney, Australia:
    • Kenyon, A. J., Wojdak, M., Ahmad, I., Loh, W. H., Oton, C. J. (2008). Generalized rate-equation analysis of excitation exchange between silicon nanoclusters and erbium ions. PHYS REV B 77(3), 035318 doi:10.1103/PhysRevB.77.035318.
    • Kenyon, A. J., Wojdak, M., Ahmed, I., Oton, C. J., Loh, W. H. (2008). (Invited) Probing the Si nanocluster-erbium interaction using measurements of photoluminescence dynamics. International Workshop on Sensitized Er doped waveguide amplifier/laser (SEDWAL). Trento, Italy: Author URL
    • Steinman, E. A., Kenyon, A. J., Tereschenko, A. N. (2008). Time decay of dislocation-related photoluminescence in silicon. Extended Defects in Semiconductors 2008. Poitiers, France: Author URL
    • Steinman, E. A., Kenyon, A. J., Tereshchenko, A. N. (2008). Time-resolved measurements of dislocation-related photoluminescence bands in silicon. Semiconductor Science and Technology 23, 025010- doi:10.1088/0268-1242/23/2/025010.
    • Wojdak, M., Kenyon, A. J., Ahmad, I., Loh, W. H., Oton, C. J. (2008). On the use of rate equations for the analysis of excitation exchange between silicon nanoclusters and erbium ions. European Materials Research Society Spring Meeting. Strasbourg: Author URL
    • Wojdak, M., Liaw, I. I., Ahmad, I., Oton, C. J., Loh, W. H., Kenyon, A. J., Boyd, I. W. (2008). Silicon nanoclusters containing nitrogen and sensitization of erbium luminescence in SiO(x): Er. Materials Science and Engineering: B 146(1-3), 175-178 doi:10.1016/j.mseb.2007.07.022.

    2007

    • Kenyon, A. J. (2007). Silicon Nanoclusters as Sensitisers of Luminescence From Erbium Ions – Modelling the Interaction. Electrochemical Society Meeting Abstracts. ( Vol. 702 ). Pennington, US: The Electrochemical Society. Publisher URL
    • Kenyon, A. J., Mitchell, J., Smith, J. (2007). Introducing Problem Based Learning in Electronic and Electrical Engineering. Journal of Materials Education 29, 79-86

    2006

    • Kenyon, A. J., Chryssou, C. E., Smeeton, T. M., Humphreys, C. J., Hole, D. E. (2006). Sensitisation of erbium luminescence in erbium-implanted alumina. Optical Materials 28, 655-659
    • Kenyon, A. J., Loh, W. H., Oton, C. J., Ahmad, I. (2006). An analysis of erbium excited state absorption in silicon-rich silica. Journal of Luminescence 121, 193-198
    • Loh, W. H., Kenyon, A. J. (2006). Excited state absorption in the Si nanocluster-Er material system. IEEE Photonics Technology Letters 18(1), 289-291 doi:10.1109/LPT.2005.861266.
    • Loh, W. H., Oton, C. J., Kenyon, A. J. (2006). Er(3+) excited state absorption and the low fraction of nanocluster-excitable Er(3+) in SiO(x). Applied Physics Letters 89, 03116-03118 doi:10.1063/1.2227637.
    • Oton, C. J., Loh, W. H., Ahmad, I., Kenyon, A. J. (2006). Er3+ excited state absorption and the low fraction of nanocluster-excitable Er3+ in SiOx. Materials Research Society Fall Meeting. Boston, USA:
    • Pagliarani, A., Kenyon, A. J., Thornhill, N. F., Sirisena, E., Lee, K., Law, V. J. (2006). Process harmonic pulling in RIE plasma-tool. Electronics Letters 42, 120-121

    2005

    • Kenyon, A. J. (2005). Erbium in silicon. Semiconductor Science and Technology 20, R65-R84 doi:10.1088/0268-1242/20/12/R02.
    • McMillan, P. F., Gryko, J., Bull, C., Arledge, R., Kenyon, A. J., Cressey, B. A. (2005). Amorphous and nanocrystalline luminescent Si and Ge obtained via a solid-state chemical metathesis synthesis route. Journal of Solid State Chemistry 178, 937-949
    • Mitchell, J., Smith, J., Kenyon, A. J. (2005). 'It's not for lazy students like me . . .'. International Journal of Electronic Engineering Education 42(1), 41-51

    2004

    • Chryssou, C. E., Kenyon, A. J., Smeeton, T. M., Humphreys, C. J., Hole, D. E. (2004). Broadband sensitization of 1.53 mu m Er3+ luminescence in erbium-implanted alumina. Applied Physics Letters 85(22), 5200-5202 doi:10.1063/1.1829139.
    • Kenyon, A. J., Law, V. J., Pagliarani, A., Thornhill, N. F., Lee, K., Lea, L. (2004). Harmonic measurements of RF technological plasmas. Technological Plasmas Initiative workshop. Sheffield:
    • Kenyon, A. J., Lucarz, F. (2004). A critique of the existing models for excitation exchange between silicon nanoclusters and erbium ions in silica. Meeting Abstracts , 1025-1025
    • Kenyon, A. J., Thornhill, N. F., Pagliarani, A., Watkins, M., Law, V. J., Lea, L. (2004). A frequency domain measurement diagnostic technique for plasma-tools. Measurement Science and Technology 15, 231-236
    • Mitchell, J. E., Smith, J., Kenyon, A. (2004). It’s not for lazy students like me…. International Conference on Innovation, Good Practice and Research in Engineering Education.. ( pp.52-57). Wolverhampton:
    • Mitchell, J., Smith, J., Kenyon, A. J. (2004). It's not for lazy students like me...Problem Based Learning in electronic and electrical engineering. UCL Teaching and Learning Conference. Author URL
    • Pagliarani, A., Kenyon, A. J., Thornhill, N. F., Sirisena, E., Lee, K., Law, V. (2004). Oxygen plasma harmonic stability in a RIE plasma tool. Program of the 57th Annual Gaseous Electronics Conference: September 26-29, 2004, Bunratty, Ireland. ( Vol. 49 ). New York, US: American Physical Society. Publisher URL

    2003

    • Abram, R. A., Kenyon, A. J., Stoneham, A. M., Dobson, P. (2003). Increasing the efficiency of erbium-based sources using silicon quantum dots - Discussion. PHILOS T R SOC A 361(1803), 361-362
    • Bergamini, S., Law, V. J., Kenyon, A. J., Thornhill, N. F., Lea, L. (2003). Plasma harmonics Lissajous measurements. TPP7 Progress in Plasma Processing of Materials , 127-134
    • Fang, Q., Meier, M., Yu, J. J., Kenyon, A., Boyd, I. W. (2003). Optical Properties of Er-doped Si02-Ti02 Thin Films by UV-CVD. E-MRS-2003, Strasbourg, Symposium J: Rare earth doped materials for photonics. Strasbourg:
    • Fang, Q., Meier, M., Yu, J. J., Wang, Z. M., Zhang, J. Y., Wu, J. X., Kenyon, A., Hoffmann, P. (2003). FTIR and XPS investigation of Er-doped SiO2-TiO2 films. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY. ( Vol. 105 pp.209-213). ELSEVIER SCIENCE SA.
    • Kenyon, A. J. (2003). Increasing the efficiency of erbium-based sources using silicon quantum dots. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES. ( Vol. 361 pp.345-361). ROYAL SOC LONDON.
    • Kenyon, A. J. (2003). Increasing the luminescence yield from erbium by coupling with silicon quantum dots. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 361, 345-362
    • Kenyon, A. J. (2003). Quantum confinement in rare-earth doped semiconductor systems. Current Opinion in Solid State and Materials Science 7, 143-149
    • Kenyon, A. J. (2003). Review of 'Electronic and optoelectronic properties of semiconductor structures'. Singh,J. Cambridge:
    • Kenyon, A. J., Law, V. J., Bergamini, S., Thornhill, N. F., Lee, K., Watkins, M., Lea, L. (2003). Remote-coupled Oxygen Plasma Harmonic Measurements for Process Monitoring. In Gerard, F. (Ed.). Advances in Plasma Physics Research, Vol 4 ( ). New York:
    • Kenyon, A. J., Lucarz, F. (2003). The Puzzling Question of the Excitation Transfer Mechanism in Erbium-Doped Silicon Nanocrystals. European Materials Research Society Spring Meeting. Strasbourg:
    • Kenyon, A. J., Pitt, C. W., Bhamber, S. S. (2003). A silicon-based infra-red photodetector exploiting erbium-doped silicon nanocrystals. Materials Research Society Symposium Proceedings 770, 211-216
    • Kenyon, A. J., Steinman, E. A., Pitt, C. W., Hole, D. E., Vdovin, V. I. (2003). The origin of the 0.78 eV luminescence band in dislocated silicon. Journal of Physics: Condensed Matter 15, S2843-S2850
    • Kenyon, A. J., Steinman, E. A., Pitt, C. W., Hole, D. E., Vdovin, V. I. (2003). The origin of the 0.78 eV luminescence band in strained layer SiGe/Si. OPTOELECTRONICS OF GROUP-IV-BASED MATERIALS. ( Vol. 770 pp.31-36). MATERIALS RESEARCH SOCIETY.
    • Kenyon, A. J., Zhang, J., Fang, Q., Boyd, I. W. (2003). Visible photoluminescence from nanocrystaline Ge grown at room temperature by photo-oxidation of SiGe using a 126 nm lamp. Applied Surface Science. ( Vol. 208 pp.364-368).
    • Kenyon, A., Bhamber, S. S., Pitt, C. W. (2003). The infra-red photoresponse of erbium-doped silicon nanocrystals. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY. ( Vol. 105 pp.230-235). ELSEVIER SCIENCE SA.
    • Law, V. J., Kenyon, A. J., Thornhill, N. F., Pagliarani, A., Lee, K., Watkins, M., Lea, L. (2003). Harmonic monitoring of the switched silicon etched process. Journal of Physics D: Applied Physics 36(17), 2146-2151
    • Lucarz, F., Kenyon, A. J. (2003). Silicon nanocrystals in erbium-doped silica for optical amplifiers. Proceedings of the London Communications Symposium 2003 , 125-128
    • Pagliarani, A., Kenyon, A. J., Thornhill, N. F., Lee, K., Law, V. J., Lea, L. (2003). Amplitude and phase measurement of plasma harmonics in a photoresist etching process. APHYS 2003. ( Vol. 7 pp.101-). Badajoz, Spain:
    • Pagliarani, A., Kenyon, A. J., Thornhill, N. F., Lee, K., Watkins, M. W., Lea, L., Law, V. J. (2003). Plasma harmonics as a sensitive probe of process conditions. IOP Technological Plasmas Initiative meeting. Birmingham:
    • Zhang, J. Y., Fang, Q., Kenyon, A. J., Boyd, I. W. (2003). Visible photoluminescence from nanocrystalline Ge grown at room temperature by photo-oxidation of SiGe using a 126 nm lamp. Applied Surface Science 208, 364-368

    2002

    • Griffiths, H. D., Kenyon, A. J., Mitchell, J. E., Sacks, L. (2002). Problem Based Learning in electronic engineering. UCL Teaching and Learning Conference.
    • Kenyon, A. J. (2002). (Invited) Increasing the luminescence yield from erbium by coupling with silicon quantum dots. Royal Society Discussion Meeting on Quantum Dots - Science on the Smallest Scale?.
    • Kenyon, A. J. (2002). Problem Based Learning in electronic engineering. Learning and Teaching Support Network meeting on Supply and Demand in Engineering. Author URL
    • Kenyon, A. J. (2002). Recent developments in rare-earth doped materials for optoelectronics. Progress in Quantum Electronics 26, 225-284 doi:10.1016/S0079-6727(02)00014-9.
    • Kenyon, A. J., Chryssou, C. E., Pitt, C. W., Shimizu-Iwayama, T., Hole, D. E., Sharma, N., Humphreys, C. J. (2002). Luminescence from erbium-doped silicon nanocrystals in silica: Excitation mechanisms. Journal of Applied Physics 91, 367-375 doi:10.1063/1.1419210.
    • Zhang, J. -. Y., Fang, Q., Kenyon, A. J., Boyd, I. W. (2002). Visible photoluminescence from nanocrystalline Ge grown at room temperature by photo-oxidation of Si-Ge using a 126nm lamp. E-MRS-2002, Spring meeting, Symposium D: Laser Materials Processing. Strasbourg, France:

    2001

    • Chryssou, C. E., Kenyon, A. J., Pitt, C. W. (2001). Investigation of energy exchange between silicon nanocrystals and Er3+ in silica. Materials Science and Engineering B. ( Vol. 81 pp.16-18).
    • Kenyon, A. J., Chryssou, C. E., Pitt, C. W. (2001). Enhancement of Er emission by coupling to silicon nanoclusters: a route to flashlamp pumped Er amplifiers? Proceedings of SPIE. ( Vol. 4282 pp.185-192). SPIE.
    • Kenyon, A. J., Chryssou, C. E., Pitt, C. W., Iwayama, T. S., Hole, D. E. (2001). Flashlamp pumping of erbium-doped silicon nanoclusters. Applied Organometallic Chemistry 15(352), 352-358
    • Kenyon, A. J., Chryssou, C. E., Pitt, C. W., Iwayama, T. S., Hole, D. E., Sharma, N., Humphreys, C. J. (2001). Broad-band and flashlamp pumping of 1.53 mu m emission from erbium-doped silicon nanocrystals. Materials Science and Engineering B. ( Vol. 81 pp.19-22).
    • Law, V. J., Kenyon, A. J., Thornhill, N. F., Seeds, A. J., Batty, I. (2001). Rf probe technology for the next generation of technological plasmas. Journal of Physics D: Applied Physics. ( Vol. 34 pp.2726-2733).

    2000

    • Chryssou, C. E., Kenyon, A. J., Trwoga, P. F., Pitt, C. W. (2000). Photoluminescence characterization of Er(3+)-implanted silica thin films containing Si nanocrystals. In Rare-Earth-Doped Materials and Devices IV. ( Vol. 3942 pp.97-105).
    • Kenyon, A. J., Chryssou, C. E., Pitt, C. W. (2000). Broad-band pumping of rare-earth doped thin films. IOP Applied Optics and Optoelectronics conference. ( pp.TF2.10-). Loughborough:
    • Kenyon, A. J., Chryssou, C. E., Pitt, C. W. (2000). Indirect excitation of 1.5 mu m emission from Er(3+) in silicon-rich silica. Applied Physics Letters 76, 688-690
    • Law, V. J., Kenyon, A. J., Thornhill, N., Srigengan, V. (2000). Remote-coupled sensing of plasma harmonics and process end-point detection. Vacuum 59, 351-364
    • Sharma, N., Chryssou, C. E., Kenyon, A. J., Pitt, C. W., Humphreys, C. J. (2000). Characterisation of silicon nanocrystals and Er3+ in silica. Proceedings of EUREM 12, 363-364

    1999

    • Chryssou, C. E., Kenyon, A. J., Iwayama, T. S., Hole, D. E., Pitt, C. W. (1999). Evidence of energy coupling between Si nanocrystals and Er3+ in ion-implanted silica thin films. Applied Physics Letters 75, 2011-2014
    • Chryssou, C. E., Kenyon, A. J., Pitt, C. W., Chandler, P. J., Hole, D. E. (1999). Investigation of coupling mechanism between erbium (Er3+) and ytterbium (Yb3+) in alumina (Al2O3) host. Materials Research Society Symposium - Proceedings 560, 203-207
    • Federighi, M., Kenyon, A. J., Chryssou, C. E., Pitt, C. W. (1999). The effect of level mixing in Er-doped Si. Materials Research Society Symposium - Proceedings 560, 251-255
    • Kenyon, A. J., Botti, S., Chryssou, C. E., Trwoga, P. F., Pitt, C. W. (1999). Energy transfer in erbium-doped silicon nanoclusters: a comparison of silicon-rich silica and silicon nanopowders. Materials Research Society Symposium Proceedings. ( Vol. 560 pp.221-226).
    • Kenyon, A. J., Botti, S., Trwoga, P. F., Pitt, C. W. (1999). Measurement of photocarrier lifetimes in silicon nanoclusters. Proceedings of the Fifth International Symposium On Quantum Confinement: Nanostructures. ( Vol. 98 pp.17-26). Pennington, US: Electrochemical Society. Publisher URL
    • Law, V. J., Kenyon, A. J., Clary, D. C. (1999). A noninvasive rf probe for the study of ionization and dissociation processes in technological plasmas. Journal of Applied Physics 86, 4100-4106

    1998

    • Kenyon, A. J., Trwoga, P. F., Pitt, C. W., Rehm, G. (1998). Luminescence efficiency measurements of silicon nanoclusters. Applied Physics Letters 73, 523-525
    • Trwoga, P. F., Kenyon, A. J., Pitt, C. W. (1998). Modeling the contribution of quantum confinement to luminescence from silicon nanoclusters. Journal of Applied Physics 83(7), 3789-3794

    1997

    • Kenyon, A. J., Trwoga, P. F., Pitt, C. W. (1997). A luminescence study of silicon-rich silica and rare-earth doped silicon-rich silica. Proceedings of the Fourth International Symposium on Quantum Confinement: Nanoscale Materials, Devices, and Systems. ( pp.304-318). Pennington, US: Electrochemical Society. Publisher URL

    1996

    • Amirhaghi, S., Kenyon, A. J., Federighi, M., Pitt, C. W. (1996). Carrier lifetime measurements in silicon by photothermal radiometric microscopy. Materials Research Society Symposium Proceedings 428, 455-460
    • Kenyon, A. J. (1996). (Invited) Light emission from silicon-rich silica. Rank Prize Funds Symposium on Optical Composites. Cumbria:
    • Kenyon, A. J., Trwoga, P. F., Pitt, C. W., Rehm, G. (1996). The origin of photoluminescence from thin films of silicon-rich silica. Journal of Applied Physics 79, 9291-
    • Trwoga, P. F., Kenyon, A. J., Federighi, M., Pitt, C. W. (1996). Silicon nanoclusters in silica: a luminescence study of visible light emission from a silicon-based material. Materials Research Society Symposium Proceedings 424, 483-488
    • Trwoga, P. F., Kenyon, A. J., Pitt, C. W. (1996). DC electroluminescence from PECVD grown thin films of silicon-rich silica. Electronics Letters 32, 1703-

    1995

    • Golan, G., Aviv, R., Kenyon, A. J., Griffel, G., Pitt, C. W. (1995). Novel approach in scanning acoustic microscopy - the resonance mode. The Eighteenth Convention of Electrical and Electronics Engineers in Israel: Tel-Aviv, March 7-8, 1995: program & papers. ( pp.2.5.1/1-2.5.1/5). New York, US: IEEE. Publisher URL
    • Golan, G., Kenyon, A. J., Aviv, R., Pitt, C. W. (1995). Differential image contrast in scanning acoustic microscopy. Annual Meeting of the Israeli Society for Microscopy. Holon:
    • Golan, G., Kenyon, A. J., Griffel, G., Pitt, C. W. (1995). Scanning acoustic microscopy and its potential in S.E.M. Scanning Electron Microscope Conference at the Center for Technological Education. Holon:
    • Kenyon, A. J., Trwoga, P. F., Federighi, M., Pitt, C. W. (1995). Optical properties of PECVD erbium-doped silica: evidence for energy transfer between silicon microclusters and erbium ions. Materials Research Society Symposium Proceedings 358, 117-122
    • Trwoga, P. F., Kenyon, A. J., Rehm, G., Pitt, C. W. (1995). Silicon-rich silica and erbium doped silicon-rich silica by plasma enhanced chemical vapour deposition. IOP Annual Congress. ( pp.J22-).

    1994

    • Federighi, M., Kenyon, A. J., Massarek, I., Pitt, C. W., Pradissitto, J., Robinson, H., Trwoga, P. (1994). Components for an onboard optical communication structure for silicon circuits. IEE Colloquium Digest 198, 7/1-7/4
    • Golan, G., Griffel, G., Kenyon, A. J., Pitt, C. W. (1994). A resonating scanning acoustic microscope: design And fabrication. International Symposium on Surface Waves in Solid and Layered Structures, 1994, and National Conference on Acoustoelectronics, 1994: Program and Abstracts. ( pp.0_167-0_167). New York, US: IEEE. Author URL Publisher URL
    • Golan, G., Kenyon, A. J., Griffel, G., Pitt, C. W. (1994). High resolution images in acoustic microscopy. Journal of the Acoustical Society of America 95(5), 2893-2894 doi:10.1121/1.409337.
    • Golan, G., Kenyon, A. J., Griffel, G., Pitt, C. W. (1994). Scanning Acoustic Microscopy for Biological Media Imaging and Characterization. 1994 Symposium on Medical Physics and Medical Instrumentation, Jerusalem College of Technology. ( pp.63-). Jerusalem:
    • Golan, G., Kenyon, A. J., Griffel, G., Pitt, C. W. (1994). Thermal effects in scanning acoustic microscopy for fine resolution applications. IEEE Transactions: Ferroelectrics and Frequency Control 41, 1-4
    • Golan, G., Kenyon, A. J., Griffel, G., Pitt, C. W. (1994). THERMO-ACOUSTIC EFFECTS ON IMAGES FOR HIGH-RESOLUTION SCANNING ACOUSTIC MICROSCOPY. Electronics Letters 30, 127-128
    • Kenyon, A. J., Trwoga, P. F., Federighi, M., Pitt, C. W. (1994). Optical properties of PECVD erbium-doped silica: evidence for energy transfer between silicon microclusters and erbium ions. Journal of Physics: Condensed Matter 6, L319-L324
    • McCaffery, A. J., Quintella, C. M., Zidan, M. D., Kenyon, A. J. (1994). Dynamics of the gas-liquid interface from state-resolved scattering experiments. Abstracts of the American Chemical Society. ( Vol. 207 pp.PHYS 26-). Washington, DC, US: American Chemical Society. Publisher URL

    1993

    • Kenyon, A. J., McCaffery, A. J., Quintella, C. M., Zidan, M. D. (1993). Dynamics of the gas/liquid interface from laser molecular beam scattering. Faraday Discussions 96, 245-254
    • Kenyon, A. J., McCaffery, A. J., Quintella, C. M., Zidan, M. D. (1993). Investigation of dynamical processes at liquid surfaces by molecular scattering. Journal of the Chemical Society, Faraday Transactions 89, 3877-3884

    1992

    • Kenyon, A. J., McCaffery, A. J., Quintella, C. M., Zidan, M. D. (1992). Liquid surface dynamics: a quantum-resolved scattering study. Chemical Physics Letters 190, 55-58

    1991

    • Kenyon, A. J., McCaffery, A. J., Quintella, C. M. (1991). Fluorescence depolarisation as a probe of molecular dynamics within liquid jets. Molecular Physics 72, 965-970
    • Kenyon, A. J., McCaffery, A. J., Quintella, C. M., Winkel, J. F. (1991). A study of molecular dynamics within liquid flows using fluorescence depolarisation. Molecular Physics 74, 871-884
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