Application of two spirobifluorene derivatives containing arylamine groups in organic light emitting diodes and fluorescent probe for water
Two novel spirobifluorene derivatives (<b>SPF-1</b> and <b>SPF-2</b>) incorporating arylamine groups were prepared. The fluorescent intensity of <b>SPF-1</b> can be made to measure the water content of organic solvents. The detection limits are respectively estima...
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| Autores principales: | , , , , |
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| Formato: | article |
| Lenguaje: | EN ZH |
| Publicado: |
Academic Journals Center of Shanghai Normal University
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/f009a084e4574985b7cb8ad87ffed6e5 |
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| Sumario: | Two novel spirobifluorene derivatives (<b>SPF-1</b> and <b>SPF-2</b>) incorporating arylamine groups were prepared. The fluorescent intensity of <b>SPF-1</b> can be made to measure the water content of organic solvents. The detection limits are respectively estimated at 0.049% in tetrahydrofuran (THF) and 0.018% in 1,4-dioxane, which are superior to most reported results in the literature. The electroluminescence (EL) devices, where <b>SPF-1</b> and <b>SPF-2</b> serve as emitting materials, exhibit a peak around 506 nm with CIE coordinates of (0.24, 0.48) for <b>SPF-1</b> and dual band emissions at 471 and 502 nm with CIE coordinates of (0.31, 0.54) for <b>SPF-2</b>, respectively. These devices showed excellent performance with low turn-on voltages and high thermal stability. The maximum brightness,maximum current efficiencies and power efficiencies are 1 660 cd·m<sup>-2</sup>,2.1 cd·A<sup>-1</sup>and 1.28 lm·W<sup>-1</sup> for <b>SPF-1</b>,and 1 653 cd·m<sup>-2</sup>,2.55 cd·A<sup>-1</sup> and 1.23 lm·W<sup>-1</sup> for <b>SPF-2</b>, respectively. |
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