Dr Dave Langstaff
BSc (Southampton) PhD (Aberystwyth)

Dr Dave Langstaff

Senior Experimental Officer

Contact Details

Profile

Dr. Langstaff gained his first degree in electronic engineering at Southampton University, with a final year project developing an automated test system for characterisation of semiconductor devices produced in the Microelectronics Group. He went on to work in the Microelectronics Group at Southampton, working for the Wolfson Industrial Unit and the SERC funded Design Centre at Southampton there as well as a work with CAD data preparation for Electron Beam Lithography.

He moved to Aberystwyth in 1990 on a LINK funded project to design an Integrated Circuit to implement a Charge Detector Array for applications in Mass Spectroscopy. Following the successful conclusion of the project he joined a project to further develop the detector array concept for applications in Electron Spectroscopy. He was appointed as Senior Experimental Officer to CAFMaD in 2006. His main research interest is the layout of Silicon Integrated Circuits for detectors, taking particular interest in the efficient mapping of function and form. As well as his other duties, Dr. Langstaff is departmental Safety Officer for DMAPS.

Teaching

Research

  • Instrumentation for experimentation
    • Development of integrated charge sensing, pixellated imaging device for electron spectroscopy
    • Use of image processing to analyse data from high speed camera pictures of levitating liquid samples
    • Development of Instrument control software in Labview

Research Groups

Publications

High temperature photoelectron emission and surface photovoltage in semiconducting diamondWilliams, G. T., Cooil, S. P., Roberts, O. R., Evans, S., Langstaff, D. P. & Evans, D. A. 2014 In : Applied Physics Letters.105, 6, 4 p., 061602
Developing a Hyperspectral CLose UP Imager With UV Excitation (HyperCLUPI) for Mars ExplorationBarnes, D., Josset, J. L., Coates, A. J., Cousins, C. R., Cockell, C., Gunn, M. D., Cross, R. E. & Langstaff, D. 2014 p. EPSC2014-729
Aerodynamic levitator furnace for measuring thermophysical properties of refractory liquidsLangstaff, D. P., Gunn, M. D., Greaves, G. N., Marsing, A. & Kargl, F. 2013 In : Review of Scientific Instruments.84, 12, 11 p., 124901
Transport and optical gaps and energy band alignment at organic-inorganic interfacesEvans, D. A., Vearey-Roberts, A. R., Roberts, O. R., Williams, G. T., Cooil, S. P., Langstaff, D. P., Cabailh, G., McGovern, I. T. & Goss, J. P. 2013 In : Journal of Applied Physics.114, 12, 8 p., 123701
Molecular organization in organic semiconductor thin films observed in real timeEvans, D. A., Roberts, O. R., Vearey-Roberts, A. R., Williams, G. T., Brieva, A. & Langstaff, D. P. 2013 In : Applied Physics Letters.102, 2, 5 p., 021605
Iron-mediated growth of epitaxial graphene on SiC and diamondCooil, S. P., Song, F., Williams, G. T., Roberts, O. R., Langstaff, D. P., Jørgensen, B., Høydalsvik, K., Breiby, D. W., Wahlström, E., Evans, D. A. & Wells, J. W. 2012 In : Carbon.50, 14, p. 5099-5105
A system for real-time in situ photoelectron spectroscopyLangstaff, D. P., Roberts, O. R., Williams, G. T. & Evans, D. A. 2011 Diamond Light Source Proceedings.Vol. 1, p. e111
Detecting sp2-bonded carbon in diamond using optically detected X-ray absorption spectroscopyJones, G. O., Roberts, O. R., Williams, G. T., Langstaff, D. P., Poolton, N. R. J., Martineau, P., Fisher, D., Lawson, S. & Evans, D. A. 2011 Diamond Conference Proceeedings.Vol. 1, p. e131
Comment on "Liquid-Liquid Phase Transition in Supercooled Yttria-Alumina"Greaves, G. N., Wilding, M. C., Hennet, L., Langstaff, D., Kargl, F., Benmore, C. J. & Weber, J. K. R. 2011 In : Physical Review Letters.106, 11, 1 p., 119601
Composition and polyamorphism in supercooled yttria-alumina meltsGreaves, G. N., Wilding, M. C., Langstaff, D., Kargl, F., Hennet, L., Benmore, C. J., Weber, J. K. R., Van, Q. V., Majerus, O. & McMillan, P. F. 2011 In : Journal of Non-Crystalline Solids.357, 2, p. 435-4417 p.
Characterisation of Organic Semiconductor Growth using Real-time Electron SpectroscopyEvans, D. A., Roberts, O. R., Williams, G. T. & Langstaff, D. P. 2011 MRS Proceedings .Vol. 1318, p. mrsf10-1318-uu09-05
A method of extending the capabilities of multispectral interference-filter cameras for planetary exploration and similar applicationsGunn, M. D., Barnes, D., Cousins, C. R., Langstaff, D. P., Tyler, L. G., Pugh, S. M., Pullan, D. & Griffiths, A. D. 2011 p. 108-113
Developments towards a filter wheel hyperspectral camera for planetary explorationGunn, M. D., Langstaff, D. P. & Barnes, D. 2011
Snapshot Electron Spectroscopy using a Linear ArrayCross, R. & Langstaff, D. 2011
Real-time monitoring of the evolving morphology and molecular structure at an organic-inorganic semiconductor interface: SnPc on GaAs(001)Evans, D. A., Vearey-Roberts, A. R., Roberts, O. R., Brieva, A., Bushell, A., Williams, G. T., Langstaff, D. P., Cabailh, G. & McGovern, I. T. 2010 In : Journal of Vacuum Science & Technology B.28, 4, 7 p., C5F5
High-temperature electronic structure of the diamond (111) surfaceWilliams, G. T., Roberts, O. R., Evans, S., Langstaff, D. P. & Evans, D. A. 2010 Diamond Conference Abstracts 2010.
Diamond-metal contacts: Interface barriers and real-time characterizationEvans, D. A., Roberts, O. R., Williams, G. T., Vearey-Roberts, A. R., Bain, F., Evans, S., Langstaff, D. P. & Twitchen, D. J. 2009 In : Journal of Physics: Condensed Matter.21, 36, 364223
Reduction of multiple triggering in counting detectorsLangstaff, D. & Zhu, X. 2009 In : Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.604, 1-2, p. 400-4033 p.
Progress on the Aberystwyth electron counting arrayLangstaff, D. P., Evans, D. A., Roberts, O. R. & Zhu, X. 2009 In : Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.604, 1-2, p. 133-1353 p.
In situ structural studies of alumina during melting and freezingGreaves, G. N., Wilding, M. C., Fearn, S., Langstaff, D., Kargl, F., Van, Q. V., Hennet, L., Pozdnyakova, I., Majérus, O., Cernik, R. J. & Martin, C. 2008 In : Advances in Synchrotron Radiation.1, 2, p. 135-14915 p.
Detection of first-order liquid/liquid phase transitions in yttrium oxide-aluminium oxide meltsGreaves, G. N., Wilding, M. C., Fearn, S., Langstaff, D., Kargl, F., Cox, S., Van, Q. V., Majérus, O., Benmore, C. J., Weber, R., Martin, C. M. & Hennet, L. 2008 In : Science.322, 5901, p. 566-5705 p.
Direct observation of Schottky to Ohmic transition in Al-diamond contacts using real-time photoelectron spectroscopyEvans, D. A., Roberts, O. R., Vearey-Roberts, A. R., Langstaff, D. P., Twitchen, D. & Schwitters, M. 2007 In : Applied Physics Letters.91, 132114
A multichannel detector array with 768 pixels developed for electron spectroscopyChase, T. R. & Langstaff, D. 2007 In : Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.p. 169-1713 p.
Charge Detector ArrayLangstaff, D. & Birkinshaw, K. 2005 PCT/GB2005/002224
A fully integrated multi-channel detector for electron spectroscopyChase, T. R., Evans, D. A., Langstaff, D. & Bushell, A. 2005 In : Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms.238, 1-4, p. 219-2235 p.
An MCP based detector array with integrated electronicsLangstaff, D. 2002 In : International Journal of Mass Spectrometry.215, 1-3, p. 1-1212 p.