A Dewetting-Induced Assembly Strategy for Precisely Patterning Organic Single Crystals in OFETs

Simple methods for patterning single crystals are critical to fully realize their applications in electronics. However, traditional vapor and solution methods are deficient in terms of crystals with random spatial and quality distributions. In this work, we report a dewetting-induced assembly strate...

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Published inACS applied materials & interfaces Vol. 8; no. 29; pp. 18978 - 18984
Main Authors Kan, Xiaonan, Xiao, Chengyi, Li, Xinmeng, Su, Bin, Wu, Yuchen, Jiang, Wei, Wang, Zhaohui, Jiang, Lei
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 27.07.2016
Subjects
assembly
micropillars
field-effect transistors
liquid bridge
single crystal
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Summary:Simple methods for patterning single crystals are critical to fully realize their applications in electronics. However, traditional vapor and solution methods are deficient in terms of crystals with random spatial and quality distributions. In this work, we report a dewetting-induced assembly strategy for obtaining large-scale and highly oriented organic crystal arrays. We also demonstrate that organic field-effect transistors (OFETs) fabricated from patterned n-alkyl-substituted tetrachloroperylene diimide (R–4ClPDI) single crystals can reach a maximum mobility of 0.65 cm2 V–1 s–1 for C8–4ClPDI in ambient conditions. This technique constitutes a facile method for fabricating OFETs with high performances for large-scale electronics applications.
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ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.6b04163