Self-Assembled Organic Single Crystalline Nanosheet for Solution Processed High-Performance n-Channel Field-Effect Transistors

Jin Hong Kim; Sang Kyu Park; Jong H Kim; Dong Ryeol Whang; Won Sik Yoon; Soo Young Park

doi:10.1002/adma.201506387

Self-Assembled Organic Single Crystalline Nanosheet for Solution Processed High-Performance n-Channel Field-Effect Transistors

Adv Mater. 2016 Jul;28(28):6011-5. doi: 10.1002/adma.201506387. Epub 2016 May 11.

Authors

Jin Hong Kim¹, Sang Kyu Park¹, Jong H Kim¹, Dong Ryeol Whang¹, Won Sik Yoon¹, Soo Young Park¹

Affiliation

¹ Center for Supramolecular Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, South Korea.

PMID: 27165653
DOI: 10.1002/adma.201506387

Abstract

Submillimeter sized n-channel organic single crystalline nanosheet based on dicyanodistyrylbenzene derivative, (2E,2'E)-3,3'-(2,5-dimethoxy-1,4-pheny-lene)bis(2-(5-(4-(trifluoromethyl)phenyl)thiophen-2-yl)acrylonitrile) (Me-4-TFPTA), is developed. Strong π-π interaction, hydrogen bonding interactions derived from cyano group (CN) as well as solvent inclusion along the lateral direction play a key role in forming nanosheet morphology. Me-4-TFPTA nanosheets exhibit excellent field-effect electron mobility of up to 7.81 cm(2) v(-1) s(-1) .

Keywords: organic field-effect transistors; organic n-channel semiconductors; organic single crystalline semiconductors; solvated crystals.