Photo-induced charge and luminescence measurements in ZnS:Mn2+ ACTFEL
Result description
Photo-induced transferred charge (PIQ) and photo-induced luminescence (PIL) measurements involve the creation of electron-hole pairs in the phosphor near one of the phosphor/insulator interfaces, transport of this photo-induced charge across the phosphor, and measurement of the charge transferred across the phosphor layer or the luminescence emitted from the phosphor layer, respectively, as a function of the magnitude of the applied DC voltage. In PIQ/PIL experiments the electron and hole transport maybe studied independently by simply changing the polarity of the DC bias. In ZnS:Mn alternating-current thin-film electroluminescence (ACTFEL) devices the hole transport may give rise to impact excitation-induced electroluminescence (EL), holes are approximately half as efficient as electrons in contributing to the transferred charge, and that the efficiency of transport is significantly greater for holes than electrons.
Keywords
Electroluminescencethin-filmphoto-induced chargephoto-induced luminanceACTFELZnS:Mn
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Photo-induced charge and luminescence measurements in ZnS:Mn2+ ACTFEL
Original language description
Photo-induced transferred charge (PIQ) and photo-induced luminescence (PIL) measurements involve the creation of electron-hole pairs in the phosphor near one of the phosphor/insulator interfaces, transport of this photo-induced charge across the phosphor, and measurement of the charge transferred across the phosphor layer or the luminescence emitted from the phosphor layer, respectively, as a function of the magnitude of the applied DC voltage. In PIQ/PIL experiments the electron and hole transport maybe studied independently by simply changing the polarity of the DC bias. In ZnS:Mn alternating-current thin-film electroluminescence (ACTFEL) devices the hole transport may give rise to impact excitation-induced electroluminescence (EL), holes are approximately half as efficient as electrons in contributing to the transferred charge, and that the efficiency of transport is significantly greater for holes than electrons.
Czech name
Měření fotoindukovaného náboje a luminiscence v ZnS:Mn2+ ACTFEL
Czech description
Měření fotoindukovaného náboje (PIQ) a fotoindukované luminescence (PIL) vyžadují tvorbu párů elektron-díra v luminoforu v blízkosti rozhraní luminofor/izolátor, transport tohoto fotoindukovaného náboje luminoforem a měření náboje přeneseného luminoforemnebo luminiscence vyzářené z vrstvy luminoforu jako funkci velikosti aplikovaného ss napětí. V PIQ/PIL experimentech mohou být elektrony a díry studované nezávisle pouhou změnou polarity předpětí. V ZnS:Mn ACTFEL může transport děr způsobit vznik elecctroluminiscence, přičemž díry mají přibližně poloviční účinnost jako elektrony na přenos náboje. Účinnost přenosu je podstatně větší pro díry než pro elektrony.
Classification
Type
D - Article in proceedings
CEP classification
JA - Electronics and optoelectronics
OECD FORD branch
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Result continuities
Project
ME 544: Semiconductors - local optical and electrical properties
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
New trends in Physics NTF 2004
ISBN
80-7355-024-5
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
200-203
Publisher name
Ing. Zdenek Novotny, CSc.
Place of publication
Brno
Event location
Brno
Event date
Nov 11, 2004
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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Basic information
Result type
D - Article in proceedings
CEP
JA - Electronics and optoelectronics
Year of implementation
2004