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Alkyl Chain Length Dependence of the Field-Effect Mobility in Novel Anthracene Derivatives
- Authors
- Back, Jang Yeol; An, Tae Kyu; Cheon, Ye Rim; Cha, Hyojung; Jang, Jaeyoung; Kim, Yebyeol; Baek, Yonghwa; Chung, Dae Sung; Kwon, Soon-Ki; Park, Chan Eon; Kim, Yun-Hi
- Issue Date
- Jan-2015
- Publisher
- AMER CHEMICAL SOC
- Keywords
- organic field-effect transistor (OFET); alkyl chain length; asymmetric anthracene; structure−mobility relationship; crystal orientation
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.7, no.1, pp.351 - 358
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 7
- Number
- 1
- Start Page
- 351
- End Page
- 358
- ISSN
- 1944-8244
- 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.
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Related Researcher
- Jang, Jae young
- COLLEGE OF ENGINEERING (DEPARTMENT OF ENERGY ENGINEERING)