David Langstaff
BSc (Southampton) PhD (Aberystwyth)

Lecturer

Senior Experimental Officer

Contact Details

Room Number..........:  2.09
Building....................:  Physical Sciences
Phone.......................:   +44 (0)1970 621913
E-Mail........................:   dpl
Home Page...............:   Personal

Biography

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.

Research Groups

Research Interests

  • My Areas of Interest are:
    • Instrumentation for synchrotron 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

Teaching Areas

Modules Taught

  • FG15510: Ffiseg Labordy
  • FG15700: Cyflwyniad i Ffiseg Arbrofol a Chyfrifiadurol
  • FG15720: Cyflwyniad i Ffiseg Arbrofol a Chyfrifiadurol
  • FG25520: Ffiseg Arbrofol
  • FG35410: Ffiseg Arbrofol (10 Credyd)
  • FG37500: Prosiect (40 Credyd)
  • FG37540: Prosiect (40 Credyd)
  • FGM5800: Prif Brosiect
  • FGM5860: Prif Brosiect
  • PH15510: Laboratory Physics
  • PH15700: Introduction to Computational and Experimental Physics
  • PH15720: Introduction to Computational and Experimental Physics
  • PH24010: Data Handling and Statistics
  • PH24520: Sensors, Electronics & Instrumentation
  • PH25520: Experimental Physics
  • PH33610: Semiconductor Technology
  • PH33710: Science of Semiconductor Applications
  • PH35410: Experimental Physics (10 Credits)
  • PH35620: Project (20 Credits)
  • PH37500: Project (40 Credits)
  • PH37540: Project (40 Credits)
  • PHM5800: Major Project
  • PHM5860: Major Project
  • PHM5920: Minor Project
  • PHM7020: Advanced Research Topics

Publications

2014

Williams, G.T., Cooil, S.P., Roberts, O.R., Evans, S., Langstaff, D.P., Evans, D.A. 2014. High temperature photoelectron emission and surface photovoltage in semiconducting diamond. Applied Physics Letters 105 (6) 061602 10.1063/1.4893274 Cadair

Barnes, D., Josset, J.L., Coates, A.J., Cousins, C.R., Cockell, C., Gunn, M.D., Cross, R.E., Langstaff, D. 2014. Developing a Hyperspectral CLose UP Imager With UV Excitation (HyperCLUPI) for Mars Exploration. Cadair

2013

Langstaff, D.P., Gunn, M.D., Greaves, G.N., Marsing, A., Kargl, F. 2013. Aerodynamic levitator furnace for measuring thermophysical properties of refractory liquids. Review of Scientific Instruments 84 (12) 124901 10.1063/1.4832115 Other Cadair

Evans, 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. Transport and optical gaps and energy band alignment at organic-inorganic interfaces. Journal of Applied Physics 114 (12) 123701 10.1063/1.4823518 Cadair

Evans, D.A., Roberts, O.R., Vearey-Roberts, A.R., Williams, G.T., Brieva, A., Langstaff, D.P. 2013. Molecular organization in organic semiconductor thin films observed in real time. Applied Physics Letters 102 (2) 021605 10.1063/1.4775762 Cadair

2012

Cooil, 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. Iron-mediated growth of epitaxial graphene on SiC and diamond. Carbon 50 (14) pp. 5099-5105. 10.1016/j.carbon.2012.06.050 Cadair

2011

Langstaff, D.P., Roberts, O.R., Williams, G.T., Evans, D.A. 2011. A system for real-time in situ photoelectron spectroscopy. Diamond Light Source Proceedings. pp. e111. 10.1017/S2044820110000456 Cadair

Jones, 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. Detecting sp2-bonded carbon in diamond using optically detected X-ray absorption spectroscopy. Diamond Conference Proceeedings. pp. e131. 10.1017/S2044820110000936 Cadair

Greaves, G.N., Wilding, M.C., Hennet, L., Langstaff, D., Kargl, F., Benmore, C.J., Weber, J.K.R. 2011. Comment on "Liquid-Liquid Phase Transition in Supercooled Yttria-Alumina". Physical Review Letters 106 (11) 119601 10.1103/PhysRevLett.106.119601 Other Cadair

Greaves, 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. Composition and polyamorphism in supercooled yttria-alumina melts. Journal of Non-Crystalline Solids 357 (2) 6th International Discussion Meeting on Relaxation in Complex Systems. pp. 435-441. 10.1016/j.jnoncrysol.2010.06.072 Other Cadair

Evans, D.A., Roberts, O.R., Williams, G.T., Langstaff, D.P. 2011. Characterisation of Organic Semiconductor Growth using Real-time Electron Spectroscopy. MRS Proceedings . pp. mrsf10-1318-uu09-05. 10.1557/opl.2011.270 Cadair

Gunn, M.D., Barnes, D., Cousins, C.R., Langstaff, D.P., Tyler, L.G., Pugh, S.M., Pullan, D., Griffiths, A.D. 2011. A method of extending the capabilities of multispectral interference-filter cameras for planetary exploration and similar applications. Proceedings of University of Strathclyde's Second Annual Academic Hyperspectral Imaging Conference. Other Cadair

Gunn, M.D., Langstaff, D.P., Barnes, D. 2011. Developments towards a filter wheel hyperspectral camera for planetary exploration. EPSC-DPS Joint Meeting 2011. Other Cadair

Cross, R., Langstaff, D. 2011. Snapshot Electron Spectroscopy using a Linear Array. 9th International Conference on Position Sensitive Detectors. Other Cadair

2010

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. Real-time monitoring of the evolving morphology and molecular structure at an organic-inorganic semiconductor interface: SnPc on GaAs(001). Journal of Vacuum Science & Technology B 28 (4) C5F5 10.1116/1.3464769 Cadair

Williams, G.T., Roberts, O.R., Evans, S., Langstaff, D.P., Evans, D.A. 2010. High-temperature electronic structure of the diamond (111) surface. Diamond Conference Abstracts 2010. Cadair

2009

Evans, D.A., Roberts, O.R., Williams, G.T., Vearey-Roberts, A.R., Bain, F., Evans, S., Langstaff, D.P., Twitchen, D.J. 2009. Diamond-metal contacts: Interface barriers and real-time characterization. Journal of Physics: Condensed Matter 21 (36) 364223 10.1088/0953-8984/21/36/364223 Cadair

Langstaff, D., Zhu, X. 2009. Reduction of multiple triggering in counting detectors. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 604 (1-2) pp. 400-403. 10.1016/j.nima.2009.01.185 Cadair

Langstaff, D.P., Evans, D.A., Roberts, O.R., Zhu, X. 2009. Progress on the Aberystwyth electron counting array. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 604 (1-2) pp. 133-135. 10.1016/j.nima.2009.01.040 Cadair

2008

Greaves, 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. Detection of first-order liquid/liquid phase transitions in yttrium oxide-aluminium oxide melts. Science 322 (5901) pp. 566-570. 10.1126/science.1160766 Cadair

Greaves, 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 situ structural studies of alumina during melting and freezing. Advances in Synchrotron Radiation 1 (2) pp. 135-149. 10.1142/S1793617908000240 Other Cadair

2007

Evans, D.A., Roberts, O.R., Vearey-Roberts, A.R., Langstaff, D.P., Twitchen, D., Schwitters, M. 2007. Direct observation of Schottky to Ohmic transition in Al-diamond contacts using real-time photoelectron spectroscopy. Applied Physics Letters 91 132114 10.1063/1.2790779 Cadair

Chase, T.R., Langstaff, D. 2007. A multichannel detector array with 768 pixels developed for electron spectroscopy. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment pp. 169-171. 10.1016/j.nima.2006.11.027 Cadair

2005

Langstaff, D., Birkinshaw, K. 2005. Charge Detector Array. Cadair Other

Chase, T.R., Evans, D.A., Langstaff, D., Bushell, A. 2005. A fully integrated multi-channel detector for electron spectroscopy. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 238 (1-4) pp. 219-223. 10.1016/j.nimb.2005.06.187 Cadair

2002

Langstaff, D. 2002. An MCP based detector array with integrated electronics. International Journal of Mass Spectrometry 215 (1-3) pp. 1-12. 10.1016/S1387-3806(01)00578-4 Cadair