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首页> 外文期刊>RSC Advances >Phenanthroimidazole derivatives as emitters for non-doped deep-blue organic light emitting devices
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Phenanthroimidazole derivatives as emitters for non-doped deep-blue organic light emitting devices

机译：菲咪唑衍生物作为非掺杂深蓝色有机发光器件的发射器

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摘要

A series of phenanthroimidazole derivatives with N-1 and C-2 position modification have been synthesized, characterized and applied as non-doped emitters in organic light-emitting devices (OLEDs). The compounds show high fluorescence quantum yields high up to 87.51% in solid powder state as well as good thermal and film-forming properties. Crystal structures of 2N-PI, 1N-BPI and 2N-API were determined by X-ray crystallography. Correlations between optoelectronic properties, energy levels and molecular structures of the materials were investigated. It was found that the fluorescence properties of the materials were related to the dihedral angles and moiety replacement position. N-1-imidazole modification ( e.g. : 2N-API) favours deep-blue emission, although with a relatively lower quantum yield, it shows comparable device efficiency towards the C-2-imidazole derivative ( e.g. : 2N-BPI).
机译：已经合成了一系列具有N-1和C-2位置改性的菲咪唑衍生物，其特征在于有机发光装置（OLED）中的非掺杂发射器。该化合物在固体粉末状态下显示出高达87.51％的高荧光量子，以及良好的热和成膜性能。通过X射线晶体学确定2N-PI，1N-BPI和2N-API的晶体结构。研究了物质的光电性能，能量水平和材料分子结构之间的相关性。结果发现，材料的荧光性质与二面角角和部分替代位置有关。 N-1-咪唑改性（例如：2N-API）最受深蓝色发射，尽管量子产率相对较低，但它表明了朝向C-2-咪唑衍生物（例如：2N-BPI）的相当的装置效率。

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