Compound Luminescent Semiconductors: Their Properties and Uses

H. C. Swart; O. M. Ntwaeaborwa

doi:10.1016/B978-0-08-097774-4.00404-6

Compound Luminescent Semiconductors: Their Properties and Uses

H. C. Swart, O. M. Ntwaeaborwa

University of The Free State

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

2 Citations (Scopus)

Abstract

In this chapter, the basic concepts of compound luminescent semiconductors are discussed with a number of excitation mechanisms (bandgap, intra-atomic transition, and nano-phosphors) that are involved in generating the luminescence. Illustrative examples from luminescent materials of different inorganic phosphor hosts and their applications in everyday life are given. The luminescence, decay curves, and long afterglow mechanism of persistent phosphor are summarized and illustrated with practical examples. The effect of the crystal field on the emission wavelength is illustrated with examples of persistent (Ca,Sr,Ba)Al₂O₄ phosphors. Thermoluminescence is used to determine defect levels in phosphors such as (Gd,La,Y)TaO₄:Pr³⁺. Cathodoluminescent (CL) and photoluminescent (PL) properties of phosphors such as β-Ca₃(PO₄)₂:Tb³⁺, Sr₃(PO₄)₂:Tb³⁺, Sr₅(PO₄)₃F:Eu³⁺, ZnAl₂O₄:Mn²⁺, and LiAl₅O₈:Tb³⁺ are discussed. Their CL and PL properties were evaluated for possible application in different types of light-emitting devices such as field emission and plasma displays as well as fluorescent lamps.

Original language	English
Title of host publication	Solid-State Materials, Including Ceramics and Minerals
Publisher	Elsevier Ltd.
Pages	73-86
Number of pages	14
Volume	4
ISBN (Print)	9780080965291
DOIs	https://doi.org/10.1016/B978-0-08-097774-4.00404-6
Publication status	Published - Aug 2013
Externally published	Yes

Keywords

Bandgap
Cathodoluminescent (CL)
Crystal field
Decay curves
Field emission
Fluorescent lamps
Intra-atomic transition
Long afterglow mechanism
Luminescence
Nano-phosphors
Photoluminescent (PL) light-emitting devices
Plasma displays
Thermoluminescence

ASJC Scopus subject areas

General Chemistry

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10.1016/B978-0-08-097774-4.00404-6

Cite this

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title = "Compound Luminescent Semiconductors: Their Properties and Uses",

abstract = "In this chapter, the basic concepts of compound luminescent semiconductors are discussed with a number of excitation mechanisms (bandgap, intra-atomic transition, and nano-phosphors) that are involved in generating the luminescence. Illustrative examples from luminescent materials of different inorganic phosphor hosts and their applications in everyday life are given. The luminescence, decay curves, and long afterglow mechanism of persistent phosphor are summarized and illustrated with practical examples. The effect of the crystal field on the emission wavelength is illustrated with examples of persistent (Ca,Sr,Ba)Al2O4 phosphors. Thermoluminescence is used to determine defect levels in phosphors such as (Gd,La,Y)TaO4:Pr3+. Cathodoluminescent (CL) and photoluminescent (PL) properties of phosphors such as β-Ca3(PO4)2:Tb3+, Sr3(PO4)2:Tb3+, Sr5(PO4)3F:Eu3+, ZnAl2O4:Mn2+, and LiAl5O8:Tb3+ are discussed. Their CL and PL properties were evaluated for possible application in different types of light-emitting devices such as field emission and plasma displays as well as fluorescent lamps.",

keywords = "Bandgap, Cathodoluminescent (CL), Crystal field, Decay curves, Field emission, Fluorescent lamps, Intra-atomic transition, Long afterglow mechanism, Luminescence, Nano-phosphors, Photoluminescent (PL) light-emitting devices, Plasma displays, Thermoluminescence",

author = "Swart, {H. C.} and Ntwaeaborwa, {O. M.}",

year = "2013",

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T2 - Their Properties and Uses

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AU - Ntwaeaborwa, O. M.

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N2 - In this chapter, the basic concepts of compound luminescent semiconductors are discussed with a number of excitation mechanisms (bandgap, intra-atomic transition, and nano-phosphors) that are involved in generating the luminescence. Illustrative examples from luminescent materials of different inorganic phosphor hosts and their applications in everyday life are given. The luminescence, decay curves, and long afterglow mechanism of persistent phosphor are summarized and illustrated with practical examples. The effect of the crystal field on the emission wavelength is illustrated with examples of persistent (Ca,Sr,Ba)Al2O4 phosphors. Thermoluminescence is used to determine defect levels in phosphors such as (Gd,La,Y)TaO4:Pr3+. Cathodoluminescent (CL) and photoluminescent (PL) properties of phosphors such as β-Ca3(PO4)2:Tb3+, Sr3(PO4)2:Tb3+, Sr5(PO4)3F:Eu3+, ZnAl2O4:Mn2+, and LiAl5O8:Tb3+ are discussed. Their CL and PL properties were evaluated for possible application in different types of light-emitting devices such as field emission and plasma displays as well as fluorescent lamps.

AB - In this chapter, the basic concepts of compound luminescent semiconductors are discussed with a number of excitation mechanisms (bandgap, intra-atomic transition, and nano-phosphors) that are involved in generating the luminescence. Illustrative examples from luminescent materials of different inorganic phosphor hosts and their applications in everyday life are given. The luminescence, decay curves, and long afterglow mechanism of persistent phosphor are summarized and illustrated with practical examples. The effect of the crystal field on the emission wavelength is illustrated with examples of persistent (Ca,Sr,Ba)Al2O4 phosphors. Thermoluminescence is used to determine defect levels in phosphors such as (Gd,La,Y)TaO4:Pr3+. Cathodoluminescent (CL) and photoluminescent (PL) properties of phosphors such as β-Ca3(PO4)2:Tb3+, Sr3(PO4)2:Tb3+, Sr5(PO4)3F:Eu3+, ZnAl2O4:Mn2+, and LiAl5O8:Tb3+ are discussed. Their CL and PL properties were evaluated for possible application in different types of light-emitting devices such as field emission and plasma displays as well as fluorescent lamps.

KW - Bandgap

KW - Cathodoluminescent (CL)

KW - Crystal field

KW - Decay curves

KW - Field emission

KW - Fluorescent lamps

KW - Intra-atomic transition

KW - Long afterglow mechanism

KW - Luminescence

KW - Nano-phosphors

KW - Photoluminescent (PL) light-emitting devices

KW - Plasma displays

KW - Thermoluminescence

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SN - 9780080965291

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EP - 86

BT - Solid-State Materials, Including Ceramics and Minerals

PB - Elsevier Ltd.

ER -

Compound Luminescent Semiconductors: Their Properties and Uses

Abstract

Keywords

ASJC Scopus subject areas

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