PHOTOLUMINESCENCE STUDIES OF SIDEWALL PROPERTIES OF DRY-ETCHED INGAAS/INP QUANTUM WIRES

被引:12
作者
GU, SQ
LIU, X
COVINGTON, M
REUTER, E
CHANG, H
PANEPUCCI, R
ADESIDA, I
BISHOP, SG
CANEAU, C
BHAT, R
机构
[1] UNIV ILLINOIS,DEPT ELECT & COMP ENGN,URBANA,IL 61801
[2] BELL COMMUN RES INC,RED BANK,NJ 07701
关键词
D O I
10.1063/1.356549
中图分类号
O59 [应用物理学];
学科分类号
摘要
InGaAs/InP quantum wires with widths ranging from 200 to 40 nm have been fabricated using high-resolution electron-beam lithography and CH4/H-2 reactive-ion etching. The excitation intensity dependence of the photoluminescence (PL) energies and line shapes for relatively wide wires (approximately 100 nm) exhibits the effects of band filling in k space and band-gap renormalization due to many-body effects in dense electron-hole plasmas (EHP). In the narrowest wires studied (approximately 40 nm), the effects of sidewall surface recombination limit the attainable EHP density. In addition, the results show a blue shift of PL energies when wire width decreases below 100 nm.
引用
收藏
页码:8071 / 8074
页数:4
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