Noise Contact Study of CdTe Radiation Detectors

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F12%3APU101449" target="_blank" >RIV/00216305:26220/12:PU101449 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Noise Contact Study of CdTe Radiation Detectors
Original language description
We have compared noise spectra and charge transport properties analysis results of CdTe radiation detectors: low-ohmic and semi-insulating. We observed assymmetry of IV characteristics of the low-ohmic detector between "normal" nad "reverse" bias, showing improper quality of contacts preparation, which resulted in higher concentration of impurities in M-S interface area. This finding was supported by the fact that the low frequency noise spectral density magnitude was proportional to applied voltage with exponent of 2.7, which is higher than theoretical value 2. The more advanced manufacturing technology of the semi-insulating detector resulted in symmetric contacts IV characteristics and its linear character. Also, this detector showed lower increaseof noise spectral density magnitude with exponent of 2.3.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the Scientific Conference Physics of Materials 2012
ISBN
978-80-553-1175-3
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
99-104
Publisher name
Neuveden
Place of publication
Košice, Slovensko
Event location
Košice
Event date
Oct 17, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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