Super low density InGaAs semiconductor ring-shaped nanostructures

被引：50

作者：

Lee, Jihoon H. ^{[1
]}

Wang, Zhiming M. ^{[1
]}

Ware, Morgan E. ^{[1
]}

Wijesundara, Kushal C. ^{[2
]}

Garrido, Mauricio ^{[2
]}

Stinaff, Eric A. ^{[2
]}

Salamo, Gregory J. ^{[1
]}

机构：

[1] Univ Arkansas, Inst Nanoscale Sci & Engn, Fayetteville, AR 72701 USA

[2] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

来源：

CRYSTAL GROWTH & DESIGN | 2008年 / 8卷 / 06期

关键词：

D O I：

10.1021/cg701263c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on the ability to fabricate super low density InGaAs semiconductor ring-shaped nanocrystals on a GaAs (100) surface by molecular beam epitaxy. Specifically, we demonstrate densities down to 2.3 x 10(6) cm(-2) with only self-assembled methods based on droplet epitaxy. This is several orders of magnitude lower than conventional nanostructures. The formation of these ring-shaped nanostructures is driven by a self-assembled indium nanodrilling mechanism and diffusion during crystallization.

引用

页码：1945 / 1951

页数：7

共 54 条

[1] Observation of Ga droplet formation on (311)A and (511)A GaAs surfaces [J].

AbuWaar, Ziad Y. ;

Wang, Zhiming M. ;

Lee, Jihoon H. ;

Salamo, Gregory J. .

NANOTECHNOLOGY, 2006, 17 (16) :4037-4040

[2] Formation and optical characterization of single InAs quantum dots grown on GaAs nanoholes [J].

Alonso-Gonzalez, P. ;

Alen, B. ;

Fuster, D. ;

Gonzalez, Y. ;

Gonzalez, L. ;

Martinez-Pastor, J. .

APPLIED PHYSICS LETTERS, 2007, 91 (16)

[3] New process for high optical quality InAs quantum dots grown on patterned GaAs(001) substrates [J].

Alonso-Gonzalez, Pablo ;

Gonzalez, Luisa ;

Gonzalez, Yolanda ;

Fuster, David ;

Fernandez-Martinez, Ivan ;

Martin-Sanchez, Javier ;

Abelmann, Leon .

NANOTECHNOLOGY, 2007, 18 (35)

[4] Optical detection of the Aharonov-Bohm effect on a charged particle in a nanoscale quantum ring [J].

Bayer, M ;

Korkusinski, M ;

Hawrylak, P ;

Gutbrod, T ;

Michel, M ;

Forchel, A .

PHYSICAL REVIEW LETTERS, 2003, 90 (18) :4-186801

[5] Quantum light emission of two lateral tunnel-coupled (In,Ga)As/GaAs quantum dots controlled by a tunable static electric field [J].

Beirne, GJ ;

Hermannstädter, C ;

Wang, L ;

Rastelli, A ;

Schmidt, OG ;

Michler, P .

PHYSICAL REVIEW LETTERS, 2006, 96 (13)

[6] ELECTRON-ELECTRON INTERACTION AND THE PERSISTENT CURRENT IN A QUANTUM RING [J].

CHAKRABORTY, T ;

PIETILAINEN, P .

PHYSICAL REVIEW B, 1994, 50 (12) :8460-8468

[7] OBSERVATION OF AHARONOV-BOHM ELECTRON INTERFERENCE EFFECTS WITH PERIODS H/E AND H/2E IN INDIVIDUAL MICRON-SIZE, NORMAL-METAL RINGS [J].

CHANDRASEKHAR, V ;

ROOKS, MJ ;

WIND, S ;

PROBER, DE .

PHYSICAL REVIEW LETTERS, 1985, 55 (15) :1610-1613

[8] Magneto-optical transitions in nanoscopic rings -: art. no. 075307 [J].

Climente, JI ;

Planelles, J ;

Jaskólski, W .

PHYSICAL REVIEW B, 2003, 68 (07)

[9] Energy spectra of quantum rings [J].

Fuhrer, A ;

Lüescher, S ;

Ihn, T ;

Heinzel, T ;

Ensslin, K ;

Wegscheider, W ;

Bichler, M .

NATURE, 2001, 413 (6858) :822-825

[10] Intermixing and shape changes during the formation of InAs self-assembled quantum dots [J].

García, JM ;

MedeirosRibeiro, G ;

Schmidt, K ;

Ngo, T ;

Feng, JL ;

Lorke, A ;

Kotthaus, J ;

Petroff, PM .

APPLIED PHYSICS LETTERS, 1997, 71 (14) :2014-2016

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