期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 4, 期 14, 页码 3041-3058出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5tc02849c
关键词
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资金
- Petroleum Research Fund (PRF) of the American Chemical Society [47343-B10]
- Arab Fund Scholarship Program
- Klima- und Energiefonds Project PLASMOLED [3726090]
- NSF PREM [DMR-0934212, DMR-1523611]
Pyrene was derivatized in positions 1, 3, 6, and 8 to yield a series of nine tetraarylpyrenes for which absorption, emission, emission lifetimes and solvatochromism in solution were determined. The fluorescence quantum yields in thin films and crystalline state, electrochemistry, and quantum-chemical calculations were completed for the series along with the X-ray crystal structure analysis of compounds 1, 2, 4, 5, 7, and 9. Compounds 2, 3, 4 as well as 7 were identified as the most suitable candidates for OLED application. Notably, in an unoptimized single-layer device geometry, these compounds exhibited blue electroluminescence coupled with impressively low turn-on voltages and high maximum luminances such as 2.8 V and 13 542 cd m(-2) at 8.2 V for compound 2, respectively.
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