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2019
6 Downloads (Pure)

Room temperature cathodoluminescence quenching of Er3+ in AlNOEr

Brien, V., Edwards, P. R., Boulet, P. & O'Donnell, K. P., 31 Jan 2019, In : Journal of Luminescence. 205, p. 97-101 5 p.

Research output: Contribution to journalArticle

Open Access
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Erbium
Cathodoluminescence
cathodoluminescence
Quenching
Phonons
2018
3 Citations (Scopus)
26 Downloads (Pure)

Eu-Mg defects and donor-acceptor pairs in GaN: photodissociation and the excitation transfer problem

Singh, A. K., O'Donnell, K. P., Edwards, P. R., Lorenz, K., Leach, J. H. & Boćkowski, M., 22 Jan 2018, In : Journal of Physics D: Applied Physics. 51, 6, 5 p., 065106.

Research output: Contribution to journalArticle

Open Access
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Photodissociation
photodissociation
Defects
defects
Photoluminescence
3 Citations (Scopus)
9 Downloads (Pure)

Extended X-ray absorption fine structure study of Er bonding in AlNO:Erx films with x <= 3.6%

Katsikini, M., Katchkanov, V., Boulet, P., Edwards, P. R., O'Donnell, K. P. & Brien, V., 28 Aug 2018, In : Journal of Applied Physics. 124, 8, 5 p., 085705.

Research output: Contribution to journalArticle

Open Access
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fine structure
x rays
sublattices
radio frequencies
magnetron sputtering
10 Downloads (Pure)

Hysteretic photochromic switching (HPS) in doubly doped GaN(Mg):Eu—a summary of recent results

Edwards, P. R., O'Donnell, K. P., Singh, A. K., Cameron, D., Lorenz, K., Yamaga, M., Leach, J. H., Kappers, M. J. & Boćkowski, M., 22 Sep 2018, In : Materials. 11, 10, 9 p., 1800.

Research output: Contribution to journalArticle

Open Access
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europium
emission spectra
light emitting diodes
templates
rare earth elements
2017
6 Citations (Scopus)
78 Downloads (Pure)

Hysteretic photochromic switching of Eu-Mg defects in GaN links the shallow transient and deep ground states of the Mg acceptor

Singh, A. K., O'Donnell, K. P., Edwards, P. R., Lorenz, K., Kappers, M. J. & Bokowski, M., 3 Feb 2017, In : Scientific Reports. 7, 6 p., 41982.

Research output: Contribution to journalArticle

Open Access
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ground state
defects
configurations
luminous intensity
time dependence
4 Citations (Scopus)
31 Downloads (Pure)

Luminescence of Eu3+ in GaN(Mg, Eu): transitions from the 5D1 level

Singh, A. K., O'Donnell, K. P., Edwards, P. R., Cameron, D., Lorenz, K., Kappers, M. J., Boćkowski, M., Yamaga, M. & Prakash, R., 14 Dec 2017, In : Applied Physics Letters. 111, 24, 4 p., 241105.

Research output: Contribution to journalArticle

Open Access
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luminescence
photoluminescence
temperature dependence
cooling
defects
4 Citations (Scopus)
24 Downloads (Pure)

Validity of Vegard's rule for Al1-xInxN (0.08<x<0.28) thin films grown on GaN templates

Magalhães, S., Franco, N., Watson, I. M., Martin, R. W., O'Donnell, K. P., Schenk, H. P. D., Tang, F., Sadler, T. C., Kappers, M. J., Oliver, R. A., Monteiro, T., Martin, T. L., Bagot, P. A. J., Moody, M. P., Alves, E. & Lorenz, K., 28 Apr 2017, In : Journal of Physics D: Applied Physics. 50, 20 p., 205107.

Research output: Contribution to journalArticle

Open Access
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Rutherford backscattering spectroscopy
Spectrometry
Lattice constants
lattice parameters
backscattering
2016
17 Citations (Scopus)
121 Downloads (Pure)

Crystalfield symmetries of luminescent Eu3+ centers in GaN: the importance of the 5D0 to 7F1 transition

O'Donnell, K. P., Edwards, P. R., Yamaga, M., Lorenz, K., Kappers, M. J. & Boćkowski, M., 11 Jan 2016, In : Applied Physics Letters. 108, 2, 5 p., 022102.

Research output: Contribution to journalArticle

Open Access
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Defects
defects
symmetry
Optical devices
Optoelectronic devices