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Professor John Steeds

Professor John Steeds

Professor John Steeds
BSc(Lond), PhD(Cantab), FInstP, FRS

Senior Research Fellow in Physics

Emeritus Professor of Physics

Office 4.21b
HH Wills Physics Laboratory,
Tyndall Avenue, Bristol BS8 1TL
(See a map)

+44 (0) 117 928 8730

Summary

My past research has been based largely on transmission electron microscopy (TEM) and (convergent beam) electron diffraction.

However, I have recently embarked on a completely new activity concerned with the study of point defects and their complexes in wide-band-gap semiconductors, such as silicon carbide, diamond, and cubic boron carbide.I aim to understand, exploit, and develop the extremely sensitive method of low-temperature (~7K) photoluminescence microscopy for non-destructive evaluation and identification of defects in these materials.

Considerable international and national collaboration is involved. The defects may be grown-in or created by energy-selected irradiation of specimens in a specially adapted 300 kV TEM. The materials are of considerable interest for future applications in high-power, high-temperature, and high-frequency electronics and also for quantum information processing.

Keywords

  • electron microscopy
  • electron diffraction
  • electrons
  • semiconductors

Recent publications

View complete publications list in the University of Bristol publications system

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