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Margaret Hopkins

Dr

  • 4 EAST 3.04

20102017
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  • 6 Similar Profiles
light emitting diodes Physics & Astronomy
electroluminescence Physics & Astronomy
quantum wells Physics & Astronomy
cathodoluminescence Physics & Astronomy
electron beams Physics & Astronomy
defects Physics & Astronomy
Electroluminescence Chemical Compounds
semiconductor devices Physics & Astronomy

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Research Output 2010 2017

  • 7 Article
  • 1 Conference contribution
5 Citations (Scopus)

The ABC model of recombination reinterpreted: impact on understanding carrier transport and efficiency droop in InGaN/GaN light emitting diodes

Hopkins, M. A., Allsopp, D. W. E., Kappers, M. J., Oliver, R. A. & Humphreys, C. J., 21 Dec 2017, In : Journal of Applied Physics. 122, 23, 234505.

Research output: Contribution to journal › Article

Open Access
light emitting diodes
quantum wells
illuminating
light emission
quantum efficiency
4 Citations (Scopus)

Analysis of defect-related inhomogeneous electroluminescence in InGaN/GaN QW LEDs

Ren, C. X., Rouet-Leduc, B., Griffiths, J. T., Bohacek, E., Wallace, M. J., Edwards, P. R., Hopkins, M. A., Allsopp, D. W. E., Kappers, M. J., Martin, R. W. & Oliver, R. A., Nov 2016, In : Superlattices and Microstructures. 99, p. 118-124

Research output: Contribution to journal › Article

Electroluminescence
electroluminescence
Light emitting diodes
light emitting diodes
Defects
6 Citations (Scopus)

Effect of the barrier growth mode on the luminescence and conductivity micron scale uniformity of InGaN light emitting diodes

Wallace, M. J., Edwards, P. R., Kappers, M. J., Hopkins, M. A., Oehler, F., Sivaraya, S., Oliver, R. A., Humphreys, C. J., Allsopp, D. W. E. & Martin, R. W., 21 Mar 2015, In : Journal of Applied Physics. 117, 11, p. 1 - 6 6 p., 115705.

Research output: Contribution to journal › Article

light emitting diodes
electron beams
luminescence
cathodoluminescence
conductivity
11 Citations (Scopus)

Bias dependence and correlation of the cathodoluminescence and electron beam induced current from an InGaN/GaN light emitting diode

Wallace, M. J., Edwards, P. R., Kappers, M. J., Hopkins, M. A., Oehler, F., Sivaraya, S., Allsopp, D. W. E., Oliver, R. A., Humphreys, C. J. & Martin, R. W., 21 Jul 2014, In : Journal of Applied Physics. 116, 3, 033105.

Research output: Contribution to journal › Article

cathodoluminescence
light emitting diodes
electron beams
electroluminescence
low conductivity

Detailed optical and electrical characterisation of green - Orange InGaN/GaN LEDs grown by MOVPE

Cavanagh, K., Liu, C., Martin, T., Hopkins, M. A., Sivaraya, S. & Allsopp, D. W. E., 2014, Conference Proceedings - 10th International Conference on Advanced Semiconductor Devices and Microsystems, ASDAM 2014. IEEE, p. 1-4 4 p. 6998708

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

light emitting diodes
electroluminescence
low noise
direct current
wafers