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.

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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