Noise and Electro-Ultrasonic Spectroscopy of Polymer Based Conducting Layers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F07%3APU72006" target="_blank" >RIV/00216305:26220/07:PU72006 - 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 and Electro-Ultrasonic Spectroscopy of Polymer Based Conducting Layers

Original language description

We have studied the properties of polymer based thick film layers by noise and electro-ultrasonic spectroscopy. The low frequency noise spectral density is 1/fa type and it is proportional to the square of electric current. The frequency factor a is verynear to 1. From the noise measurements we have estimated the number of point contacts between conducting grains in the measured samples. We have applied new principle for non-destructive testing of conducting solids - Electro-Ultrasonic Spectroscopy. The ultrasonic signal of frequency fU changes the contact area between conducting grains and then resistance is modulated by the frequency of ultrasonic excitation. An intermodulation voltage is created on the structure. It depends on the value of AC current varying with frequency fE and on the ultrasonic excited resistance change ?R varying with frequency fU. The intermodulation component of frequency fm = fE - fU varies linearly with electric excitation and quadratic dependence on ultras

Czech name

Šum a elektro-ultrazvuková spektroskopie vodivých vrstev na bázi polymeru

Czech description

We have studied the properties of polymer based thick film layers by noise and electro-ultrasonic spectroscopy. The low frequency noise spectral density is 1/fa type and it is proportional to the square of electric current. The frequency factor a is verynear to 1. From the noise measurements we have estimated the number of point contacts between conducting grains in the measured samples. We have applied new principle for non-destructive testing of conducting solids - Electro-Ultrasonic Spectroscopy. The ultrasonic signal of frequency fU changes the contact area between conducting grains and then resistance is modulated by the frequency of ultrasonic excitation. An intermodulation voltage is created on the structure. It depends on the value of AC current varying with frequency fE and on the ultrasonic excited resistance change ?R varying with frequency fU. The intermodulation component of frequency fm = fE - fU varies linearly with electric excitation and quadratic dependence on ultras

Type

D - Article in proceedings

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

<a href="/en/project/GA102%2F05%2F2095" target="_blank" >GA102/05/2095: Noise sources in semiconductor materials and devices</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

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

Article name in the collection

Noise and Fluctuations

ISBN

978-0-7354-0432-8

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

277-280

Publisher name

American Institute of Physics

Place of publication

USA

Event location

Tokyo

Event date

Sep 9, 2007

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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