• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
10.11606/D.54.1978.tde-19062015-172514
Document
Author
Full name
Sérgio Mergulhão
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1978
Supervisor
Title in Portuguese
Estudo de armadilhas em monocristais de naftaleno
Keywords in Portuguese
Não disponível
Abstract in Portuguese
Usando a técnica de corrente limitada por carga espacial e de corrente termoestimulada, foi feito um estudo sobre a origem de armadilhas em monocristais de naftaleno. Com as teorias do transiente e do estado estacionário de corrente limitada por carga espacial, foi possível determinar o tempo de captura, energia de ativação e densidade das armadilhas. Com a teoria de corrente termoestimulada sem recaptura de elétrons, foi possível explicar os resultados obtidos para as curvas de corrente termoestimulada e a partir dessa teoria calcular a energia de ativação, freqüência de escape e seção transversal de captura. Foi possível verificar que as duas técnicas usadas separadamente dão poucas informações sobre as armadilhas e usadas em conjunto se completam. Foi possível calcular também a mobilidade modulada dos elétrons no naftaleno
Title in English
Not available
Keywords in English
Not available
Abstract in English
Using the technique of space charge limited current and thermally stimulated current, a study was made about the origin of traps in naphthalene single crystals. With the theories of transient of current and steady state space charge limited current, it was possible to calculate the trapping time, activation energy and density of traps. Using a theory of monomolecular detrapping kinetics, it was possible to exp 1ain the thermally stimulated current peaks observed and the activation energy, frequency and capture cross section were calculated. It was possible to show that the use of both theories is very important for a complete characterization of the traps in naphthalene
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
SergioMergulhaoM.pdf (4.12 Mbytes)
Publishing Date
2015-06-19
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
Centro de Informática de São Carlos
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2020. All rights reserved.