Current and noise characterization of CdTe crystal under monochromatic illumination

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F12%3APU101727" target="_blank" >RIV/00216305:26110/12:PU101727 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Current and noise characterization of CdTe crystal under monochromatic illumination

Popis výsledku v původním jazyce

Experimental studies of transport and noise characteristics of CdTe (Cl doped) crystals, prepared by travelling heater method (THM), have been carried out. The basic material is of p-type with p = 1.8 x 1014 m-3, mih = 0.0065 m2.V-1.s-1, mie = 0.13 m2.V-1.s-1. The current and noise spectral density was measured as a function of the sample illumination, voltages across the sample and incident light wavelengths. Two types of effective charge carrier mobility are assumed; namely, the effective transport mobility, which is 0.065 m2.V-1.s-1 and the effective noise mobility, which reaches a value of 0.125 m2.V-1.s-1, both for high illumination. Under the same conditions, the density of light generated charge carrier pairs is 1.7 x 1015 m-3. Experimental results are in a good agreement with the four-level recombination model. The values of 1/f noise parameter range from 4 x 10-4 to 2.5 x 10-3. The parameter grows with almost the photocurrent square root. The signal to noise ratio improves if

Název v anglickém jazyce

Current and noise characterization of CdTe crystal under monochromatic illumination

Popis výsledku anglicky

Experimental studies of transport and noise characteristics of CdTe (Cl doped) crystals, prepared by travelling heater method (THM), have been carried out. The basic material is of p-type with p = 1.8 x 1014 m-3, mih = 0.0065 m2.V-1.s-1, mie = 0.13 m2.V-1.s-1. The current and noise spectral density was measured as a function of the sample illumination, voltages across the sample and incident light wavelengths. Two types of effective charge carrier mobility are assumed; namely, the effective transport mobility, which is 0.065 m2.V-1.s-1 and the effective noise mobility, which reaches a value of 0.125 m2.V-1.s-1, both for high illumination. Under the same conditions, the density of light generated charge carrier pairs is 1.7 x 1015 m-3. Experimental results are in a good agreement with the four-level recombination model. The values of 1/f noise parameter range from 4 x 10-4 to 2.5 x 10-3. The parameter grows with almost the photocurrent square root. The signal to noise ratio improves if

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/GA102%2F99%2F0953" target="_blank" >GA102/99/0953: Šumová a galvanomagnetická spektroskopie materiálů typu II-VI</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

10 th International Conference NDT 2012 Non-Destructive Testing in Engineering Practice

ISBN

978-80-7204-823-6

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

125-131

Název nakladatele

AKADEMICKÉ NAKLADATELSTVÍ CERM, s.r.o.

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

5. 12. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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