Quantum size effects in optical properties of CdS-glass composites

Barrett G Potter, Joseph H. Simmons

Research output: Contribution to journalArticle

224 Citations (Scopus)

Abstract

The optical properties of extremely small isolated semiconductors provide a sensitive probe of the developing electronic structure in the materials. Cadmium sulfide and CdSxSe1-x crystallites are precipitated in an insulating glass matrix during a secondary heat-treatment procedure. Variation in the heat treatment significantly alters the final crystallite size, enabling the examination of a size-dependent change in the observed optical-absorption edge and exciton-related photoluminescence peak energies. A diffusion-limited coarsening behavior is exhibited by the CdS crystallites precipitated from a Zn-free base glass, indicating a high degree of purity in these crystals. Growth behavior of mixed crystallites, however, indicates some stoichiometric variation with heat-treatment time. Quantum size effects measured using the CdS precipitates in the size range from 40400 A reflect confinement primarily in the translational motion of the Wannier exciton with some slight modification of its internal electron and hole orbits.

Original languageEnglish (US)
Pages (from-to)10838-10845
Number of pages8
JournalPhysical Review B
Volume37
Issue number18
DOIs
StatePublished - 1988
Externally publishedYes

Fingerprint

Crystallites
Optical properties
Heat treatment
crystallites
optical properties
Excitons
Glass
heat treatment
composite materials
glass
Composite materials
Cadmium sulfide
excitons
Coarsening
Crystallite size
Light absorption
Electronic structure
translational motion
cadmium sulfides
Precipitates

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Quantum size effects in optical properties of CdS-glass composites. / Potter, Barrett G; Simmons, Joseph H.

In: Physical Review B, Vol. 37, No. 18, 1988, p. 10838-10845.

Research output: Contribution to journalArticle

Potter, Barrett G ; Simmons, Joseph H. / Quantum size effects in optical properties of CdS-glass composites. In: Physical Review B. 1988 ; Vol. 37, No. 18. pp. 10838-10845.
@article{17ab150e30774cba96a6e214351629c0,
title = "Quantum size effects in optical properties of CdS-glass composites",
abstract = "The optical properties of extremely small isolated semiconductors provide a sensitive probe of the developing electronic structure in the materials. Cadmium sulfide and CdSxSe1-x crystallites are precipitated in an insulating glass matrix during a secondary heat-treatment procedure. Variation in the heat treatment significantly alters the final crystallite size, enabling the examination of a size-dependent change in the observed optical-absorption edge and exciton-related photoluminescence peak energies. A diffusion-limited coarsening behavior is exhibited by the CdS crystallites precipitated from a Zn-free base glass, indicating a high degree of purity in these crystals. Growth behavior of mixed crystallites, however, indicates some stoichiometric variation with heat-treatment time. Quantum size effects measured using the CdS precipitates in the size range from 40400 A reflect confinement primarily in the translational motion of the Wannier exciton with some slight modification of its internal electron and hole orbits.",
author = "Potter, {Barrett G} and Simmons, {Joseph H.}",
year = "1988",
doi = "10.1103/PhysRevB.37.10838",
language = "English (US)",
volume = "37",
pages = "10838--10845",
journal = "Physical Review B-Condensed Matter",
issn = "0163-1829",
publisher = "American Institute of Physics Publising LLC",
number = "18",

}

TY - JOUR

T1 - Quantum size effects in optical properties of CdS-glass composites

AU - Potter, Barrett G

AU - Simmons, Joseph H.

PY - 1988

Y1 - 1988

N2 - The optical properties of extremely small isolated semiconductors provide a sensitive probe of the developing electronic structure in the materials. Cadmium sulfide and CdSxSe1-x crystallites are precipitated in an insulating glass matrix during a secondary heat-treatment procedure. Variation in the heat treatment significantly alters the final crystallite size, enabling the examination of a size-dependent change in the observed optical-absorption edge and exciton-related photoluminescence peak energies. A diffusion-limited coarsening behavior is exhibited by the CdS crystallites precipitated from a Zn-free base glass, indicating a high degree of purity in these crystals. Growth behavior of mixed crystallites, however, indicates some stoichiometric variation with heat-treatment time. Quantum size effects measured using the CdS precipitates in the size range from 40400 A reflect confinement primarily in the translational motion of the Wannier exciton with some slight modification of its internal electron and hole orbits.

AB - The optical properties of extremely small isolated semiconductors provide a sensitive probe of the developing electronic structure in the materials. Cadmium sulfide and CdSxSe1-x crystallites are precipitated in an insulating glass matrix during a secondary heat-treatment procedure. Variation in the heat treatment significantly alters the final crystallite size, enabling the examination of a size-dependent change in the observed optical-absorption edge and exciton-related photoluminescence peak energies. A diffusion-limited coarsening behavior is exhibited by the CdS crystallites precipitated from a Zn-free base glass, indicating a high degree of purity in these crystals. Growth behavior of mixed crystallites, however, indicates some stoichiometric variation with heat-treatment time. Quantum size effects measured using the CdS precipitates in the size range from 40400 A reflect confinement primarily in the translational motion of the Wannier exciton with some slight modification of its internal electron and hole orbits.

UR - http://www.scopus.com/inward/record.url?scp=30244486436&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=30244486436&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.37.10838

DO - 10.1103/PhysRevB.37.10838

M3 - Article

AN - SCOPUS:30244486436

VL - 37

SP - 10838

EP - 10845

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

IS - 18

ER -