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Arsenic-implanted GaAs: An alternative material to low-temperature-grown GaAs for ultrafast optoelectronic applications
被引:0
|作者:
Pan, CL
[1
]
Lin, GR
[1
]
机构:
[1] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 30010, Taiwan
来源:
关键词:
arsenic-ion-implanted GaAs;
GaAs : As+;
ultrafast;
photoconductive switch;
D O I:
10.1117/12.306153
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
Arsenic-ion-implanted GaAs (or GaAs:As+), with excess-arsenic-related deep level defects, has recently emerged as a potential alternative to low-temperature molecular-beam-epitaxy (LTMBE) grown GaAs for ultrafast optoelectronic applications. In this paper, we review results of our structural, ultrafast optical and optoelectronic investigations of as-implanted and thermally annealed GaAs:As+. Picosecond photoconductive switching responses are reported for devices fabricated on thermally-annealed low-dose and high-dose implanted GaAs:As+. Novel sign reversals in near-bandgap ultrafast optical responses were observed and explained.
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页码:170 / 178
页数:9
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