Red emission from Eu-doped GaN studied by photoluminescence and photo-calorimetric spectroscopy

被引:11
作者
Maruyama, T [1 ]
Sasaki, H [1 ]
Morishima, S [1 ]
Akimoto, K [1 ]
机构
[1] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1999年 / 38卷 / 11B期
关键词
GaN; quantum efficiency; photo-calorimetric spectroscopy;
D O I
10.1143/JJAP.38.L1306
中图分类号
O59 [应用物理学];
学科分类号
摘要
Bright and sharp photoluminescence was obtained from Eu-doped GaN films grown by gas-source molecular beam epitaxy using ammonia. It was found that the decrease in luminescence intensity is small between 80 K and 300 K, compared with the red emission from InGaN. The red emission from Eu-doped GaN also showed only a small peak shift within 1.6 meV in the same temperature range. From these results, the advantage of using Eu-doped GaN as a stable optoelectronic material against temperature variation is shown.
引用
收藏
页码:L1306 / L1308
页数:3
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