Metal-Semiconductor Junction Role in CdTe Detectors

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F13%3APU104104" target="_blank" >RIV/00216305:26220/13:PU104104 - isvavai.cz</a>

Result on the web

<a href="http://www.degruyter.com/view/j/aeei.2013.13.issue-1/aeei-2013-0004/aeei-2013-0004.xml?format=INT" target="_blank" >http://www.degruyter.com/view/j/aeei.2013.13.issue-1/aeei-2013-0004/aeei-2013-0004.xml?format=INT</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/aeei-2013-0004" target="_blank" >10.2478/aeei-2013-0004</a>

Result language

angličtina

Original language name

Metal-Semiconductor Junction Role in CdTe Detectors

Original language description

We have performed noise spectroscopy and charge transport properties analysis of CdTe detectors. Two types of high volume detectors are compared: Low ohmic (based on low resistivity crystal material 70 Ohm cm) and semi-insulating ( 10^8 Ohmcm).The theoretical fundaments of contacts role in detector system are given. We observed high asymmetry of IV characteristics of the lowohmic sample between normal and reverse bias, showing improper quality of contacts preparation, caused by higher concentration of impurities in metal-semiconductor area. This finding is supported by the fact that the low frequency noise spectral density is proportional to applied voltage with exponent 2.7, which is higher than the theoretical value 2.The semi-insulating sample verygood contact rectification effect symmetry and less additive noise to the detector system.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GAP102%2F11%2F0995" target="_blank" >GAP102/11/0995: Electron transport, Noise and Diagnostic of Shottky and Autoemission Cathodes</a><br>

Continuities

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

Publication year

2013

Confidentiality

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

Name of the periodical

ACTA PHYSICA POLONICA A

ISSN

0587-4246

e-ISSN

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Volume of the periodical

13

Issue of the periodical within the volume

1

Country of publishing house

PL - POLAND

Number of pages

4

Pages from-to

22-25

UT code for WoS article

000318549000098

EID of the result in the Scopus database

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