Spectroscopic evidence for piezoelectric effects in wurtzite CdS/CdSe strained-layer superlattices

M. P. Halsall; J. E. Nicholls; J. J. Davies; P. J. Wright; B. Cockayne

Spectroscopic evidence for piezoelectric effects in wurtzite CdS/CdSe strained-layer superlattices

M. P. Halsall, J. E. Nicholls, J. J. Davies, P. J. Wright, B. Cockayne

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Abstract

Superlattices of wurtzite CdS/CdSe were grown on (111)A GaAs by MOCVD. Photoluminescence spectra from a range of specimens show that the structures are of type II. The dependence of emission energies and linewidths on the layer thicknesses can be accounted for by the existence of very large ( ≈ 108 V m-1) piezoelectric fields in these strained-layer systems. These fields can be partly neutralised under optical irradiation and the photoluminescence shows large excitation-dependent shifts. © 1989.

Original language	English
Pages (from-to)	616-619
Number of pages	3
Journal	Journal of Crystal Growth
Volume	101
Issue number	1-4
Publication status	Published - 1 Apr 1990

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@article{bb19fae575ed40418200799601bc8fb8,

title = "Spectroscopic evidence for piezoelectric effects in wurtzite CdS/CdSe strained-layer superlattices",

abstract = "Superlattices of wurtzite CdS/CdSe were grown on (111)A GaAs by MOCVD. Photoluminescence spectra from a range of specimens show that the structures are of type II. The dependence of emission energies and linewidths on the layer thicknesses can be accounted for by the existence of very large ( ≈ 108 V m-1) piezoelectric fields in these strained-layer systems. These fields can be partly neutralised under optical irradiation and the photoluminescence shows large excitation-dependent shifts. {\textcopyright} 1989.",

author = "Halsall, {M. P.} and Nicholls, {J. E.} and Davies, {J. J.} and Wright, {P. J.} and B. Cockayne",

year = "1990",

month = apr,

day = "1",

language = "English",

volume = "101",

pages = "616--619",

journal = "Journal of Crystal Growth",

issn = "1873-5002",

publisher = "Elsevier BV",

number = "1-4",

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TY - JOUR

T1 - Spectroscopic evidence for piezoelectric effects in wurtzite CdS/CdSe strained-layer superlattices

AU - Halsall, M. P.

AU - Nicholls, J. E.

AU - Davies, J. J.

AU - Wright, P. J.

AU - Cockayne, B.

PY - 1990/4/1

Y1 - 1990/4/1

N2 - Superlattices of wurtzite CdS/CdSe were grown on (111)A GaAs by MOCVD. Photoluminescence spectra from a range of specimens show that the structures are of type II. The dependence of emission energies and linewidths on the layer thicknesses can be accounted for by the existence of very large ( ≈ 108 V m-1) piezoelectric fields in these strained-layer systems. These fields can be partly neutralised under optical irradiation and the photoluminescence shows large excitation-dependent shifts. © 1989.

AB - Superlattices of wurtzite CdS/CdSe were grown on (111)A GaAs by MOCVD. Photoluminescence spectra from a range of specimens show that the structures are of type II. The dependence of emission energies and linewidths on the layer thicknesses can be accounted for by the existence of very large ( ≈ 108 V m-1) piezoelectric fields in these strained-layer systems. These fields can be partly neutralised under optical irradiation and the photoluminescence shows large excitation-dependent shifts. © 1989.

M3 - Article

SN - 1873-5002

VL - 101

SP - 616

EP - 619

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 1-4

ER -

Spectroscopic evidence for piezoelectric effects in wurtzite CdS/CdSe strained-layer superlattices

Abstract

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