The effect of TiO2 nanoparticle concentration on conduction mechanism for TiO2-polymer diode

Title
The effect of TiO2 nanoparticle concentration on conduction mechanism for TiO2-polymer diode
Authors
Yoo, K.H.; Kang, K.S.; Chen, Y.; Han, K.J.; Kim, Jaehwan
Keywords
TiO2 nanoparticle, TiO2-polymer diode
Issue Date
2008-11
Publisher
American Institute of Physics
Abstract
Polymer Schottky diodes using p-type poly(3,4-ethylenedioxythiophene:poly (styrenesulfonate) (PEDOT:PSS) doped with various concentrations of n-type TiO2 nanoparticles have been fabricated. Although Al/PEDOT:PSS/Au Schottky diode does not show a clear diode characteristics, the Al/TiO2-PEDOT:PSS/Au Schottky diode exhibites excellent rectification characteristics. A Schottky diode with highly doped TiO2 nanoparticles (20 wt %) shows high forward current having more than three orders of magnitude with respect to pristine PEDOT:PSS Schottky diode. The conduction mechanism of the TiO2 doped Schottky diodes shows best fit of space charge limited conduction process compared to the other mechanisms including Schottky emission and Poole–Frenkel emission.
URI
http://dspace.inha.ac.kr/handle/10505/1526
ISSN
0003-6951
Appears in Collections:
College of Engineering(공과대학) > Mechanical Engineering(기계공학) > Journal Papers, Reports(기계공학 논문, 보고서)
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