Studies of charge transport properties in P3HT/ZnO composites using photoinduced charge extraction by linearly increasing voltage technique

Chellappan Vijila*, Furong Zhu, Minghui Liu, Ping Loh Kian

*Corresponding author for this work

Research output: Chapter in book/report/conference proceedingConference contributionpeer-review

Abstract

The charge transport properties in a mixture of regio-regular (poly 3-hexylthiophene) (RR-P3HT) and Zinc Oxide nano particle (ZnO) have been studied using the photoinduced charge extraction by linearly increasing voltage (PhotoCELIV) technique. We have studied the effect of ZnO nanoparticle size (12 nm and 50 nm) on the charge transport properties by fixing the composition ratio of P3HT/ZnO hybrid. The PhotoCELIV mobility in P3HT/50nm-ZnO at room temperature is found to be 7.8×10-5cm2/Vs at an applied electric field of 2.5 ×104 V/cm, which increases to 1.7×10-4cm2/Vs for P3HT/12nm-ZnO composite. The temperature and electric field dependence of charge mobility in these composites have been studied and analysed using Gaussian disorder formalism. The obtained results suggest that the charge transport properties in P3HT/ZnO composite, at low ZnO concentrations, can be tuned by varying the size of the nanoparticle.

Original languageEnglish
Title of host publicationConjugated Organic Materials-Synthesis, Structure, Device and Applications
EditorsZ. Bao, J. Locklin, W. You, J. Li
PublisherMaterials Research Society
Pages133-141
Number of pages9
ISBN (Print)9781605608440
DOIs
Publication statusPublished - Dec 2008
Event2008 MRS Spring Meeting - San Francisco, CA, United States
Duration: 24 Mar 200828 Mar 2008

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1091
ISSN (Print)0272-9172
NameMRS Online Proceedings Library
Number1
Volume1091
ISSN (Electronic)1946-4274

Conference

Conference2008 MRS Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA
Period24/03/0828/03/08

Scopus Subject Areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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