使用优质深蓝色 AIE 光纤作为波导源，在微尺度上发出白光,Aggregate

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使用优质深蓝色 AIE 光纤作为波导源，在微尺度上发出白光
Aggregate ( IF 13.9 ) Pub Date : 2023-11-01 , DOI: 10.1002/agt2.453
Hao Rao ₁ , Zicheng Liu ₁ , Ming Chen ₁ , Canze Zheng ₁ , Liping Xu ₁ , Junkai Liu ₂ , Jacky W. Y. Lam ₂ , Baojun Li ₁ , Xianguang Yang ₁ , Ben Zhong Tang _{2,

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Affiliation

迫切需要开发高性能有机蓝光发射器作为激发源以贡献白光的产生。另一方面，光波导的研究受到越来越多的关注，因为它们可以在微观尺度上精确地操纵光的传播，以促进光电和能量转换应用。在这项工作中，我们轻松制备了一种深蓝色聚集诱导发射（AIE）染料，即TPP-4OMe，它具有高发光效率、窄发射带和良好的聚集态稳定性。 TPP-4OMe可以很容易地制成具有明确形态和成分的深蓝色AIE微纤维。基于AIE微光纤，可以实现传输深蓝色发射信号的有源波导，光损耗系数( α )极低，为6.7 × 10 ^-3 dB μm ^-1。同时，这些AIE微光纤可以很好地实现全可见宽带低损耗无源波导，这是在纯有机晶体中从未观察到的。更有趣的是，AIE 微纤维的优异特性使其能够充当波导激发源，从而产生独特的纯白光发射。本工作不仅提供了优异的蓝光发光材料，而且桥接波导以实现高效的白光发射，加速了实际应用。

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Light-up the white light emission in microscale with a superior deep-blue AIE fiber as wave-guiding source

The development of high-performance organic blue light-emitting emitters is in urgent to act as an excitation source to contribute the white light generation. On the other hand, the investigation on optical waveguides have been received increasing attentions because they can manipulate the light propagation accurately in the microscale to boost the optoelectronic and energy conversion applications. In this work, we facilely prepared a deep-blue aggregation-induced emission (AIE) dye, namely TPP-4OMe, which shows high luminescent efficiency, narrow emission band and good stability in the aggregate state. TPP-4OMe can be fabricated as deep-blue AIE microfibers readily with definite morphology and composition. Based on the AIE microfibers, the active waveguide to transmit deep-blue emission signals can be achieved with a very low optical loss coefficient (α) of 6.7 × 10⁻³ dB μm⁻¹. Meanwhile, the full-visible broadband low-loss passive waveguide can be well performed with these AIE microfibers, which has never been observed in the pure organic crystals. More interestingly, the excellent properties of AIE microfibers enable them to act as a wave-guiding excitation source, resulting in a distinct and pure white light emission. The present work not only provides excellent blue light-emitting materials but also bridges the waveguide to realize the efficient white light emission to accelerate the practical applications.

更新日期：2023-11-01

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