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1D Mixed-Stack Cocrystals Based on Perylene Diimide toward Ambipolar Charge Transport
- Source :
- Small (Weinheim an der Bergstrasse, Germany). 17(20)
- Publication Year :
- 2021
-
Abstract
- There is very limited repertoire of organic ambipolar semiconductors to date. Electron donor-acceptor alternative stacking is a unique and important binary motif for 1D mixed-stack cocrystals, opening up possibilities for the development of organic ambipolar semiconductors. Herein, four 1D mixed-stack cocrystals using N,N'-bis(perfluorobutyl)-1,7-dicyanoperylene-3,4:9,10-bis(dicarboximide) (PDICNF) as the acceptor and anthracene, pyrene, perylene, and meso-diphenyl tetrathia[22]annulene[2,1,2,1] (DPTTA) as the donors are achieved in a stoichiometric ratio (D:A = 1:1) through solution or vapor processed methods. Their packing structures, energy levels, charge transfer interactions, coassembling behaviors, and molecular orientations are systematically investigated by single-crystal X-ray analysis, absorption spectra, fluorescence quenching, Job's curve plot, and polarized photoluminescence measurements with the help of theoretical calculations. The donor-acceptor alternative stacking direction coincides with the long axis for all the four cocrystals. The field-effect transistors based on Pyrene-PDICNF show the electron mobility up to 0.19 cm2 V-1 s-1 , which is the highest value among perylene diimide-based cocrystals. Moreover, DPTTA-PDICNF cocrystals possess well-balanced electron and hole mobility with 1.7 × 10-2 and 2.0 × 10-2 cm2 V-1 s-1 respectively due to both hole and electron strong superexchange interactions, shedding light on the design of 1D mixed-stack cocrystals with excellent ambipolar transport behaviors.
- Subjects :
- Electron mobility
Materials science
Ambipolar diffusion
Stacking
02 engineering and technology
General Chemistry
Annulene
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Acceptor
0104 chemical sciences
Biomaterials
chemistry.chemical_compound
chemistry
Superexchange
Diimide
Chemical physics
General Materials Science
0210 nano-technology
Perylene
Biotechnology
Subjects
Details
- ISSN :
- 16136829
- Volume :
- 17
- Issue :
- 20
- Database :
- OpenAIRE
- Journal :
- Small (Weinheim an der Bergstrasse, Germany)
- Accession number :
- edsair.doi.dedup.....54414370d8b2002a891e01d505077e35