High electroluminescence efficiency and long device lifetime of a fluorescent green-light emitter using aggregation-induced emission
| Autor: | Joonghan Kim, Byeong-Kwan An, Hyotcherl Ihee, Si-in Kim, Hyocheol Jung, Jongwook Park, Hwangyu Shin, Ji-Hoon Lee |
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| Rok vydání: | 2020 |
| Předmět: |
Photoluminescence
Materials science General Chemical Engineering Diphenylamine 02 engineering and technology Tetraphenylethylene Electroluminescence Green-light 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence 0104 chemical sciences chemistry.chemical_compound chemistry OLED Moiety 0210 nano-technology |
| Zdroj: | Journal of Industrial and Engineering Chemistry. 87:213-221 |
| ISSN: | 1226-086X |
| Popis: | Three bipolar materials, 4-(4,6-diphenyl-1,3,5-triazin-2-yl)-N,N-diphenylaniline (DPAT-Ph), 4-(4,6-diphenyl-1,3,5-triazin-2-yl)-N,N-diphenylnaphthalen-1-amine (DPAT-Na), and 10-(4,6-diphenyl-1,3,5-triazin-2-yl)-N,N-diphenylanthracen-9-amine (DPAT-An), were designed and synthesized. To achieve a bipolar character, diphenylamine (DPA) moiety and 2,4-diphenyl-1,3,5-triazine (DPT) moiety were introduced as electron donating and electron accepting groups, respectively. The three compounds exhibited UV maximum wavelengths (UVmax) at 395–454 nm and photoluminescence maximum wavelengths (PLmax) at 472–546 nm. 10-(4,6-Diphenyl-1,3,5-triazin-2-yl)-N,N-diphenylanthracen-9-amine (DPAT-An) shows AIE phenomenon even though DPAT-An does not have tetraphenylethylene (TPE) moiety which is representative AIE structure. DPAT-An exhibits over EQE value of 5% and long device lifetime of 1310 h without sublimation process. |
| Databáze: | OpenAIRE |
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