K. J. Cheetham MPhys (hons) PhD CPhys MInstP MIET

Academic Interests

Research interests

There is much interest in developing light-emitting diodes (LEDs) for the technologically important mid-infrared (2 to 5 µm) wavelength range. LEDs operating in this wavelength range could be used for example in optical gas detection, medical diagnostics, atmospheric pollution monitoring and free-space communications.

My PhD work focussed on pentanary compounds, such as GaInAsSbP, are particularly interesting since varying the composition allows tailoring of important properties, including the band-gap, spin-orbit splitting and lattice constant, enabling additional degrees of freedom to optimise the LED efficiency.

My current research focuses on a variety of thin-film deposition techniques, including sputtering and plasma-enhanced chemical vapour deposition. I have a paricular interest in new materials and techniques for thin film solar cells.

Website profiles

• Google Scholar
• ResearchGate
• Dimensions
• Publons
• Scopus
• SlideShare
• EPSRC CDT - PV
• orcid.org/0000-0002-3534-2049

Publications

• Academic papers
  • For up to date list, please see Google Scholar
• White papers
  • Pilkington / Nanofilm hybrid anti-reflection coating, 2016
• Patent families
  • HEAT TREATABLE COATED GLASS PANE
    • Granted in USA: US10000412 B2 (19/06/2018)
    • Granted in Europe: EP3033311 B1 (18/07/2018)
    • Granted in China: CN105517968 B (25/10/2019)
    • Granted in Japan: JP6684212 B2 (22/04/2020)
    • Additional filing pending in Japan: JP2020040875 A
    • Additional filing pending in USA: US2018297891 A1
  • SPLASH SCREEN
    • Granted in USA: US10822268 B2 (03/11/2020)
    • Pending in Europe: EP3288907 A1
  • CORROSION RESISTANT COATED GLASS SUBSTRATE
    • Pending in Europe: EP3448820 A1
    • Pending in USA: US2019135686 A1
    • Pending in Japan: JP2019520289 A
  • COATED GLASS PANE
    • Pending: WO2019186131 A9
    • Pending in China: CN112074492 A
• Conference talks given include:
  • GaInAsSbP Pentanary Mid-Infrared Light Emitting Diodes Grown by Liquid Phase Epitaxy
    WOCSDICE 2009, Malaga, Spain
  • Mid-infrared Electroluminescence from GaInAsSbP/InAsSbP Pentanary-Quaternary Heterojunctions
    UK Semiconductors 2009, Sheffield, UK
  • Narrow bandgap GaInAsSbP Pentanary Thermophotovoltaic cells
    WOCSDICE 2010, Darmstadt, Germany

Closing remarks

All successful people men and women are big dreamers. They imagine what their future could be, ideal in every respect, and then they work every day toward their distant vision, that goal or purpose.
-- Brian Tracy