Concise Approach to T-Shaped NBN-Phenalene Cored Luminogens as Intensive Blue Light Emitters
| Autor: | Kuangyu Ding, Xiaofeng Wang, Fan Zhang, Sheng Han, Peirong Qiang, Wenqing Zhu, Zuobang Sun |
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| Rok vydání: | 2020 |
| Předmět: |
Fabrication
010405 organic chemistry Chemistry business.industry Organic Chemistry Thermal decomposition Quantum yield General Chemistry 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences chemistry.chemical_compound Phenalene OLED Optoelectronics Molecule Thermal stability business Luminescence |
| Zdroj: | Chemistry (Weinheim an der Bergstrasse, Germany). 26(61) |
| ISSN: | 1521-3765 |
| Popis: | Small organic molecules with finely tunable physical properties are extremely desired for the fabrication of low-cost and high-performance organic electronic devices. In this work, we are presenting the syntheses of a series of T-shaped NBN-embedded dibenzophenalene derivatives through the formation of a key brominated intermediate in a stoichiometrically controlled reaction. The geometric and electronic structures of these T-shaped molecules can be simply tailored via attaching substituents along the direction perpendicular to the molecular main backbones, resulting in substantial physical properties, such as high thermal stability with a decomposition temperature of more than 350 o C, intensive blue luminescence with quantum yield up to 0.62. Organic light emitting diode device fabricated from such type of molecule as the emitting layer releases pure blue light with CIE (0.16, 0.12). |
| Databáze: | OpenAIRE |
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