A highly emissive distyrylthieno[3,2-b]thiophene based red luminescent organic single crystal: Aggregation induced emission, optical waveguide edge emission, and balanced ambipolar carrier transport
| Autor: | Naoki Asao, Masahiro Yamashita, Tienan Jin, Shuai Mu, Shinya Takaishi, Kazuaki Oniwa |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Stacking 02 engineering and technology 010402 general chemistry 01 natural sciences Biomaterials Crystal chemistry.chemical_compound Materials Chemistry Thiophene Electrical and Electronic Engineering HOMO/LUMO business.industry Ambipolar diffusion General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry Optoelectronics Quantum efficiency 0210 nano-technology business Luminescence Single crystal |
| Zdroj: | Organic Electronics. 34:23-27 |
| ISSN: | 1566-1199 |
| Popis: | A highly emissive red luminescent single crystal which shows aggregation induced emission (AIE) property and optical waveguide edge emission based on small organic functional molecule, cyano-substituted 2,5-di((E)-styryl)thieno[3,2-b]thiophene (CNP2V2TT) has been prepared by the physical vapor transport (PVT) method. The fluorescence quantum efficiency of crystal is up to 37% and an emission peak maximum (λmax) locates at 645 nm. Cystallographic data indicate that uniaxially oriented molecular packing with slipped face-to-face π-π stacking forms by the hydrogen bonding network among CNP2V2TT molecules. The single crystal FET devices were fabricated using Au and Ca as hole and electron injection electrodes, respectively. The molecular design, introducing cyano groups into molecular skeleton, effectively lower the LUMO level and achieve well-balanced ambipolar electron (0.13 cm2 V−1 s−1) and hole (0.085 cm2 V−1 s−1) mobilities. |
| Databáze: | OpenAIRE |
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