Paper Title:
The Influence of Material Density on Bipolar Charge Transport in Polymer-Based Electronic Applications
  Abstract

Using a mesoscopic modelling approach, the authors performed computer experiments to study the influence of polymer density on bipolar charge evolution through thin layers of polydiacetylene (PDA) exhibiting specific microstructures. We found that the competition between charge transport, trapping and recombination within the polymer layer leads to several general trends, some of them being non-intuitive, as one varies polymer density. Our results show that polymer density mainly affects current and recombination efficiencies in the absence of defects or impurity states. The overall trends depend both on chain orientation relative to the electrodes and on the strength of the external applied electric field. These results suggest that adequate modelling of charge transport in electronic and optoelectronic devices based on conducting and semiconducting polymers, such as PDA, must include their structure and related key factors at mesoscopic scale. Such models provide the necessary knowledge-base to optimize the polymer film structure for electronic applications.

  Info
Periodical
Materials Science Forum (Volumes 514-516)
Edited by
Paula Maria Vilarinho
Pages
882-886
DOI
10.4028/www.scientific.net/MSF.514-516.882
Citation
M. M. D. Ramos, H. M.G. Correia, H. Carmo, "The Influence of Material Density on Bipolar Charge Transport in Polymer-Based Electronic Applications", Materials Science Forum, Vols. 514-516, pp. 882-886, 2006
Online since
May 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Kevin Matocha, Jesse B. Tucker, Ed Kaminsky
Abstract:Different SiC thermal oxide passivation techniques were characterized using UV-induced hysteresis to estimate the fixed charge, Qf, and...
589
Authors: Shixue Wen, Jerzy A. Szpunar
Abstract:The influence of current density and temperature on the macrotexture, the orientation and size of grains, and the corrosion resistance of tin...
1413
Authors: Thanganathan Uma, Masayuki Nogami
Abstract:Sol-gel derived high proton conducting P2O5-SiO2-PMA (phosphomolybdic acid, H3PMo12O40 nH2O) glasses as electrolyte were used for the H2/O2...
149
Authors: Rui Dong Xu, Da Cheng Zhai, Shuang Li Hu
Chapter 2: Surface Engineering/Coatings
Abstract:Square-wave double pulse current was used to electrodeposit Ni-W-P-CeO2-SiO2 composite coatings in fine-grained...
856