Organic single crystals of cyano-substituted p-phenylene vinylene derivatives as transistors with low surface trap density. Issue 89 (30th October 2020)

• Record Type: Journal Article
• Authors: Deng, Jian; Wan, Yuejuan; Cai, Chang; Gu, Cheng; Ma, Yuguang
• Is Part Of: Chemical communications. Volume 56:Issue 89(2020)
• Page Start: 13776
• Page End: 13779
• Publication Date: 2020-10-30
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc06552h
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Cyano-substituted oligo( p -phenylene vinylene) derivatives with π–π interactions and intermolecular hydrogen bonds in orthogonal directions were synthesised, and demonstrated very low defect density by OFETs. Abstract : We obtained two high-quality lamellar crystals of cayno-substituted p -phenylene vinylene derivatives and fabricated their transistors. The transistors demonstrated hysteresis-free, low subthreshold swing values of 0.15 and 0.10 V dec −1, and high mobilities of 0.56 and 2.73 cm 2 V −1 s −1, respectively. More importantly, the low defect density of 1 per 9.22 × 10 3 and 1.82 × 10 4 molecules, respectively, confirmed their high crystal quality.