@inproceedings{2a036cbb9fe64c49be87ea4e6766ebfe,
title = "Characterization of the blue emission of Tm/Er co-implanted GaN",
abstract = "Comparative studies have been carried out on the cathodoluminescence (CL) and photoluminescence (PL) properties of GaN implanted with Tm and GaN co-implanted with Tm and a low concentration of Er. Room temperature CL spectra were acquired in an electron probe microanalyser to investigate the rare earth emission. The room temperature CL intensity exhibits a strong dependence on the annealing temperature of the implanted samples. The results of CL temperature dependence are reported for blue emission (∼ 477 nm) which is due to intra 4f -shell electron transitions (1G4→ 3H6) associated with Tm3+ ions. The 477 nm blue CL emission is enhanced strongly as the annealing temperature increases up to 1200°C. Blue PL emission has also been observed from the sample annealed at 1200°C. To our knowledge, this is the first observation of blue PL emission from Tm implanted GaN samples. Intra-f transitions from the 1D 2 level (∼ 465 nm emission lines) of Tm3+ ions in GaN have been observed in GaN:Tm films at temperatures between 20-200 K. We will discuss the temperature dependent Tm3+ emission in both GaN:Tm,Er and GaN:Tm samples.",
author = "Roqan, {I. S.} and C. Trager-Cowan and B. Hourahine and K. Lorenz and E. Nogales and O'Donnell, {K. P.} and Martin, {R. W.} and E. Alves and S. Ruffenach and O. Briot",
year = "2006",
language = "English (US)",
isbn = "1558998462",
series = "Materials Research Society Symposium Proceedings",
pages = "599--604",
booktitle = "Materials Research Society Symposium Proceedings",
note = "2005 Materials Research Society Fall Meeting ; Conference date: 28-11-2005 Through 02-12-2005",
}