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Master's Dissertation
DOI
https://doi.org/10.11606/D.54.1978.tde-27052014-110330
Document
Author
Full name
Carlos Mauricio Lepienski
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1978
Supervisor
Title in Portuguese
Estudo sistemático de descarga monopolar livre em dielétricos com excesso de carga
Keywords in Portuguese
Carga espacial livre
Inversão de corrente
Mobilidade
Abstract in Portuguese
Neste trabalho analisamos o movimento de carga espacial monopolar livre em dielétricos, procurando fornecer subsídios para a interpretação de resultados experimentais. São mostradas as soluções para diversos tipos de distribuições iniciais de carga. A partir daí são encontradas relações que nos levam a algumas conclusões a respeito da relação entre distribuição e corrente externa produzida. São propostos métodos para a determinação da mobilidade dos portadores de carga no dielétrico e da concavidade de uma distribuição desconhecida. Analisamos também as condições para o aparecimento de inversão de corrente
Title in English
Monopolar free space charge in dielectrics with excess of charge
Keywords in English
Current inversion
Free space charge
Mobility
Abstract in English
On this work, we study the monopolar space charge motion in dielectrics in the aim of providing general information about it to the experimentalist. The electric current is obtained for many initial charge distributions and some relations are derived linking the behavior of the current to the initial charge distribution. We propose methods for obtaining the mobility of the carriers from experimental results. Finally the conditions for observation of current reversals are analyzed
 
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Publishing Date
2014-05-28
 
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