Excitons in complex quantum nanostructures

Garnett W. Bryant; Paul S. Julienne; Yehuda B. Band

doi:10.1016/0039-6028(96)00537-7

Excitons in complex quantum nanostructures

Garnett W. Bryant, Paul S. Julienne, Yehuda B. Band

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

A theory for excitons in complex quantum nanostructures with complicated geometries and strong coupling between nanostructures is presented. Effective mass models with screened Coulomb interaction give reasonable ground-state energies for excitons in T-shaped quantum wires, coupled T-quantum wires and quantum dot quantum wells, provided the effects of complex geometry are included. A sizable shift between exciton states in quantum wells and T-shaped wires occurs due to a 40% enhancement in binding energy, confinement in the wire, and significant interwire coupling.

Original language	English
Pages (from-to)	801-804
Number of pages	4
Journal	Surface Science
Volume	361-362
DOIs	https://doi.org/10.1016/0039-6028(96)00537-7
State	Published - 20 Jul 1996

Keywords

Quantum wells
Quantum wire nanostructuring
Semi-empirical models and model calculations
Semiconductor-semiconductor heterostructures

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/0039-6028(96)00537-7

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title = "Excitons in complex quantum nanostructures",

abstract = "A theory for excitons in complex quantum nanostructures with complicated geometries and strong coupling between nanostructures is presented. Effective mass models with screened Coulomb interaction give reasonable ground-state energies for excitons in T-shaped quantum wires, coupled T-quantum wires and quantum dot quantum wells, provided the effects of complex geometry are included. A sizable shift between exciton states in quantum wells and T-shaped wires occurs due to a 40% enhancement in binding energy, confinement in the wire, and significant interwire coupling.",

keywords = "Quantum wells, Quantum wire nanostructuring, Semi-empirical models and model calculations, Semiconductor-semiconductor heterostructures",

author = "Bryant, {Garnett W.} and Julienne, {Paul S.} and Band, {Yehuda B.}",

year = "1996",

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doi = "10.1016/0039-6028(96)00537-7",

language = "English",

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pages = "801--804",

journal = "Surface Science",

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TY - JOUR

T1 - Excitons in complex quantum nanostructures

AU - Bryant, Garnett W.

AU - Julienne, Paul S.

AU - Band, Yehuda B.

PY - 1996/7/20

Y1 - 1996/7/20

N2 - A theory for excitons in complex quantum nanostructures with complicated geometries and strong coupling between nanostructures is presented. Effective mass models with screened Coulomb interaction give reasonable ground-state energies for excitons in T-shaped quantum wires, coupled T-quantum wires and quantum dot quantum wells, provided the effects of complex geometry are included. A sizable shift between exciton states in quantum wells and T-shaped wires occurs due to a 40% enhancement in binding energy, confinement in the wire, and significant interwire coupling.

AB - A theory for excitons in complex quantum nanostructures with complicated geometries and strong coupling between nanostructures is presented. Effective mass models with screened Coulomb interaction give reasonable ground-state energies for excitons in T-shaped quantum wires, coupled T-quantum wires and quantum dot quantum wells, provided the effects of complex geometry are included. A sizable shift between exciton states in quantum wells and T-shaped wires occurs due to a 40% enhancement in binding energy, confinement in the wire, and significant interwire coupling.

KW - Quantum wells

KW - Quantum wire nanostructuring

KW - Semi-empirical models and model calculations

KW - Semiconductor-semiconductor heterostructures

UR - http://www.scopus.com/inward/record.url?scp=4243946338&partnerID=8YFLogxK

U2 - 10.1016/0039-6028(96)00537-7

DO - 10.1016/0039-6028(96)00537-7

M3 - Article

AN - SCOPUS:4243946338

SN - 0039-6028

VL - 361-362

SP - 801

EP - 804

JO - Surface Science

JF - Surface Science

ER -

Excitons in complex quantum nanostructures

Abstract

Keywords

ASJC Scopus subject areas

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