文章基本信息

标题：Optical excitation and external photoluminescence quantum efficiency of Eu³⁺ in GaN
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作者：W. D. A. M. de Boer ; C. McGonigle ; T. Gregorkiewicz 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2014
卷号：4
DOI：10.1038/srep05235
出版社：Springer Nature
摘要：We investigate photoluminescence of Eu-related emission in a GaN host consisting of thin layers grown by organometallic vapor-phase epitaxy. By comparing it with a reference sample of Eu-doped Y₂O₃, we find that the fraction of Eu³⁺ ions that can emit light upon optical excitation is of the order of 1%. We also measure the quantum yield of the Eu-related photoluminescence and find this to reach (~10%) and (~3%) under continuous wave and pulsed excitation, respectively.