Effect of Exciton-Longitudinal Optical Phonon Interaction οn Exciton Binding Energies in ZnS/Mg_{x}Be_{y}Zn_{1-x-y}S Quantum Wells

• Authors: C. Onodera , M. Yoshida
• Languages of publication: EN

Abstracts

EN

We study the effects of exciton-longitudinal optical phonon interaction on the exciton binding energies in ZnS/Mg_{x}Be_{y}Zn_{1-x-y}S single quantum wells. The heavy- and light-hole exciton binding energies increase to the exciton-logitudinal optical phonon interaction. The increase in the maximum heavy-hole (light-hole) exciton binding energy for x=0.74 is 68.3 meV (55.0 meV). In narrow ZnS/Mg_{x}Be_{y}Zn_{1-x-y}S single quantum wells SQWs, the heavy- and light-hole exciton binding energies exceed the longitudinal optical phonon energy of ZnS when x ≥ 0.1.

Keywords

EN

73.21.Fg; 78.20.Bh; 81.05.Dz

Discipline

• 81.05.Dz: II-VI semiconductors
• 73.21.Fg: Quantum wells
• 78.20.Bh: Theory, models, and numerical simulation

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 4
• Pages: 643-647

Dates

published

2010-10

received

2010-01-29

(unknown)

2010-03-03

Contributors

author

C. Onodera

• Electronic Engineering Course, Aomori Prefectural Towada Technical Senior High School, 215-1 Shimotai Sanbongi, Towada, Aomori 034-0001, Japan

author

M. Yoshida

• Hachinohe National College of Technology, 16-1 Uwanotai, Tamonoki, Hachinohe, Aomori 039-1192, Japan

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Identifiers

DOI

10.12693/APhysPolA.118.643