FABRICATION OF INGAAS WIRES BY PREFERENTIAL MOLECULAR-BEAM EPITAXY GROWTH ON CORRUGATED INP SUBSTRATE

被引:9
|
作者
FUJIKURA, H [1 ]
IWAANA, T [1 ]
HASEGAWA, H [1 ]
机构
[1] HOKKAIDO UNIV,INTERFACE QUANTUM ELECTR RES CTR,SAPPORO,HOKKAIDO 060,JAPAN
关键词
QUANTUM WIRE; INGAAS/INALAS; MBE; PREFERENTIAL GROWTH; SEM; PL; PHASE SEPARATION;
D O I
10.1143/JJAP.33.919
中图分类号
O59 [应用物理学];
学科分类号
摘要
Fabrication technology of InGaAs wire structures by preferential molecular beam epitaxy growth on corrugated InP substrate was successfully developed for the first time. Growth was made on the substrates having V-grooves with (211)A or (111)A facets and wires were made in nonquantum regime. The effects of the growth conditions on the cross-sectional structure and photoluminescence (PL) properties were clarified. Wires grown on (111)A facets showed better structural and PL properties than those on (211)A facets. Insertion of an InGaAs low-temperature (LT) buffer layer was found to greatly improve the band-edge PL intensity. Under optimum conditions, the wire exhibited an intense PL emission with a narrow peak width at an energy position of InGaAs lattice-matched to InP. A defect-related emission is also observed and discussed.
引用
收藏
页码:919 / 924
页数:6
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