Controlled formation of large-area single-crystalline TIPS-pentacene arrays through superhydrophobic micropillar flow-coating

Chengyi Xiao, Xiaonan Kan, Chunming Liu, Wei Jiang, Guangyao Zhao, Qiang Zhao, Lei Zhang, Wenping Hu, Zhaohui Wang, Lei Jiang

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24 Citations (Scopus)


A convenient and controlled organic semiconductor alignment strategy, superhydrophobic micropillar flow-coating (SMFC), is presented. Patterned, large-area (>1 cm2) 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-pentacene) single-crystalline arrays which show hole mobilities up to 6.8 cm2 V-1 s-1 were obtained via this method. Crucially, the polymorphism of TIPS-pentacene was regulated by tuning the flow rate, solvent and the substrate hydrophobicity. These results indicate that this technique is reliable for creating uniform and homogenous organic single-crystalline arrays with controlled crystal packing, thickness, and position.

Original languageEnglish
Pages (from-to)2702-2707
Number of pages6
JournalJournal of Materials Chemistry C
Issue number10
Publication statusPublished - 14 Mar 2017
Externally publishedYes

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