Alkyl Chain Length Dependence of the Field-Effect Mobility in Novel Anthracene Derivatives

Title
Alkyl Chain Length Dependence of the Field-Effect Mobility in Novel Anthracene Derivatives
Authors
장재영
Keywords
crystal orientation; organic field-effect transistor (OFET); alkyl chain length; asymmetric anthracene; structure−mobility relationship
Issue Date
2015-01
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED MATERIALS & INTERFACES, v. 7, NO 1, Page. 351-358
Abstract
We report six asymmetric alkylated anthracene-based molecules with different alkyl side chain lengths for use in organic field-effect transistors (OFETs). Alkyl side chains can potentially improve the solubility and processability of anthracene derivatives. The crystallinity and charge mobility of the anthracene derivatives may be improved by optimizing the side chain length. The highest field-effect mobility of the devices prepared here was 0.55 cm2/(V s), for 2-(p-pentylphenylethynyl)anthracene (PPEA). The moderate side chain length appeared to be optimal for promoting self-organization among asymmetric anthracene derivatives in OFETs, and was certainly better than the short or long alkyl side chain lengths, as confirmed by X-ray diffraction measurements.
URI
http://hdl.handle.net/20.500.11754/21266http://pubs.acs.org/doi/abs/10.1021/am5063103
ISSN
1944-8244
DOI
http://dx.doi.org/10.1021/am5063103
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COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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