Blue cathodoluminescence from thulium implanted AlxGa1−xN and InxAl1−xN

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Roqan, I. S. and Lorenz, K. and O'Donnell, K. P. and Trager-Cowan, C. and Martin, R. W. and Watson, I. M. and Alves, E. (2006) Blue cathodoluminescence from thulium implanted AlxGa1−xN and InxAl1−xN. Superlattices and Microstructures, 40 (4-6). pp. 445-451. ISSN 0749-6036 (https://doi.org/10.1016/j.spmi.2006.07.029)

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Abstract

Room temperature cathodoluminescence (RTCL) was obtained from Tm implanted AlxGa1-xN with different AlN contents (in the range 0 <= x <= 0.2) and from implanted InxAl1-xN with different InN contents (x = 0.13 and 0.19) close to the lattice match with GaN. The Tm3+ emission spectrum depends critically on the host material. The blue emission from AIxGal-xN:Tm peaks in intensity for an AlN content of x similar to 0.11. The emission is enhanced by up to a factor of 50 times with an increase of annealing temperature from 1000 to 1300 degrees C. The blue emission from In0.13Al0.87N:Tm, annealed at 1200 degrees C, is more than ten times stronger than that from AlxGa1-xN:Tm, x <= 0.2. However, the intensity decreases significantly as the InN fraction increases from 0.13 to 0.19.

ORCID iDs

Roqan, I. S., Lorenz, K., O'Donnell, K. P. ORCID logoORCID: https://orcid.org/0000-0003-3072-3675, Trager-Cowan, C. ORCID logoORCID: https://orcid.org/0000-0001-8684-7410, Martin, R. W. ORCID logoORCID: https://orcid.org/0000-0002-6119-764X, Watson, I. M. ORCID logoORCID: https://orcid.org/0000-0002-8797-3993 and Alves, E.;
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