PICOSECOND CARRIER LIFETIME IN ERBIUM-DOPED-GAAS

被引：29

作者：

GUPTA, S ^{[1
]}

SETHI, S ^{[1
]}

BHATTACHARYA, PK ^{[1
]}

机构：

[1] UNIV MICHIGAN,DEPT ELECT ENGN & COMP SCI,SOLID STATE ELECTR LAB,ANN ARBOR,MI 48109

来源：

APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 10期

关键词：

D O I：

10.1063/1.108764

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The dependence of free-carrier lifetime on erbium concentration has been measured in molecular-beam epitaxial GaAs epilayers doped with erbium. A gradual reduction in the lifetime is observed with increased dopant incorporation. For a high doping concentration in the range of 10(19) cm-3 or greater, a carrier lifetime of approximately 1 ps is obtained. Due to the high resistivity of these epilayers, they can also be used as a photoconductive switch, with good responsivity. This leads to new and novel applications for rare-earth doped III-V semiconductors.

引用

页码：1128 / 1130

页数：3

共 9 条

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