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首页> 外文期刊>Chemistry: A European journal >Air-Stable Spirofluorene-Containing Ladder-Type Bis(alkynyl)borane Compounds with Readily Tunable Full Color Emission Properties
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Air-Stable Spirofluorene-Containing Ladder-Type Bis(alkynyl)borane Compounds with Readily Tunable Full Color Emission Properties

机译：具有易于调节的全色发射特性的空气稳定的含螺芴的梯型双（炔基）硼烷化合物

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摘要

A series of air-stable spiro-fused ladder-type boron(III) compounds has been designed, synthesized, and the electrochemistry and photophysical behavior have been characterized. By simply varying the substituents on the pyridine ring and extending the p-conjugation of the spiro framework, the emission color of these compounds can be easily fine-tuned spanning the visible spectrum from blue to red. All compounds exhibit a broad and structureless emission band across the entire visible region, assigned as an intramolecular charge-transfer transition originating from the thiophene of the spiro framework to the pyridine-borane moieties. In addition, these compounds demonstrate high photoluminescence quantum yields of up to 0.81 in dichloromethane solution and 0.86 in doped thin films. Some of the compounds have also been employed as emissive materials, in which solution-processed organic light-emitting devices (OLEDs) with tunable emission colors spanning the visible spectrum from blue, green to red have been realized, demonstrating the potential applications of these boron compounds in OLEDs.
机译：设计，合成了一系列空气稳定的螺旋稠合梯型硼（III）化合物，并表征了电化学和光物理行为。通过简单地改变吡啶环上的取代基并扩展螺骨架的p共轭作用，可以轻松地对这些化合物的发射颜色进行微调，涵盖从蓝色到红色的可见光谱。所有化合物在整个可见光区域均显示出宽阔且无结构的发射带，这被指定为分子内电荷转移跃迁，其从螺骨架的噻吩到吡啶-硼烷部分开始。此外，这些化合物在二氯甲烷溶液中的光致发光量子产率高达0.81，在掺杂薄膜中的光致发光量子产率高达0.86。一些化合物还被用作发光材料，其中实现了具有可调谐发射颜色的可见光范围从蓝色，绿色到红色的溶液处理的有机发光器件（OLED），证明了这些硼的潜在应用OLED中的化合物。

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