ERBIUM COMPLEXES AND DEFECT LEVELS IN MBE-GROWN ERBIUM-DOPED GAAS AND ALGAAS

被引:14
作者
ELSAESSER, DW
COLON, JE
YEO, YK
HENGEHOLD, RL
EVANS, KR
SOLOMON, JS
机构
[1] WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433
[2] UNIV DAYTON,RES INST,DAYTON,OH 45469
关键词
D O I
10.1016/0022-0248(93)90716-A
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Erbium doped GaAs and AlGaAs layers were grown using MBE at various Er concentrations. Low temperature photoluminescence (PL) measurements indicate that the most intense Er emissions occur near [Er] = 10(19) cm-3 and fall off sharply by [Er] = 6 X 10(19) cm-3. PL and lifetime measurements indicate that there are at least 3 distinct optically active centers. Electrical measurements show that Er-related hole traps in GaAs are at 35, 150, and 340 meV above the valence band.
引用
收藏
页码:707 / 710
页数:4
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