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Summary of Ian Booker's activities


Research focus: Deep levels and their influence on carrier lifetime in 4H-SiC and methods to improve carrier lifetime (e.g. oxidations). A secondary task is electrical characterization of III-N.

Main instruments: DLTS/MCTS/DLOS, some TRPL and a little low-temperature PL, microscopy

Responsibilities: The DLTS/MCTS/DLOS setup, the CV/IV setup, the thermal evaporator ‘Venus’ and the oxidation furnace ‘Sophia Mk.II’.

Selected publications & conference contributions

  • Carrier Lifetime Controlling Defects Z1/2 and RB1 in Standard and Chlorinated Chemistry Grown 4H-SiC
    I. D. Booker,  J. Hassan, L. Lilja, F. C. Beyer, R. Karhu, J. P. Bergman, Ö. Danielsson, O. Kordina, E. Ö. Sveinbjörnsson, and E. Janzén
    Cryst. Growth Des. 4 4104 (2014)

  • Oxidation induced ON1, ON2a/b defects in 4H-SiC characterized by DLTS
    I. D. Booker, H. Abdalla, L. Lilja, J. Hassan, J. P. Bergman, E. Ö. Sveinbjörnsson, E. Janzén
    Accepted for ICSCRM2013, to be published in Materials Science Forum
  • Comparison of post-growth carrier lifetime improvement methods for 4H-SiC epilayers
     I. D. Booker, J. Hassan, A. Hallén, E. Ö. Sveinbjörnsson, O. Kordina, J. P. Bergman
    Materials Science Forum 717-720, pp.285-288 (2012)
  • Dislocation density assessment via X-ray GaN rocking curve scans
    I. Booker, L. Rahimzadeh Khoshroo, J. F. Woitok, V. Kaganer, C. Mauder, H. Behmenburg, J. Gruis, M. Heuken, H. Kalisch, R. H. Jansen
    Physica Status Solidi (c) 7, 2001 (2010)

Supervision of students

 Master students
  • Hassan Abdalla (2012): Lifetime improvement of 4H-SiC by thermal oxidation

Bachelor students

  • Jens Tenö (2013): Setting up, calibrating and testing a DLOS/PIS broadband light source


  • TFYY55 Physics (6 ECTS) for Engineering Biology students, lab assistant
Ian Booker

PhD student


E-mail: ianbo@ifm.liu.se
Phone: +46 (0)13 28 89 36

Room P327 (Physics Building)

Semiconductor Materials, IFM
Linköping University
Linköping, Sweden


Einar Sveinbjörnssonmain
Erik Janzén, co



Responsible for this page: Fredrik Karlsson
Last updated: 12/01/14