In a groundbreaking collaboration, Professor Li Baojun's team from the Institute of Nanophotonics at Jinan University's School of Physics and Optoelectronic Engineering, along with Associate Professor Yang Xianguang and Associate Professor Chen Ming from the School of Chemistry and Materials, have successfully demonstrated white light emission on aggregation-induced luminescence (AIE) microfibers using optical waveguides and fluorescence resonance energy transfer.

Their research findings, titled Light up the white light emission in microfibers with a super deep blue AIE fiber as wave guiding source, have been published in the prestigious academic journal Aggregate under WILEY, with an impressive Impact Factor of 18.8. The paper was selected as the cover feature, highlighting the significance of the team's work in the field of nanophotonics.

（Screenshot of the paper）

Abstract：

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.

The corresponding authors of the paper include Academician Tang Benzhong from the Chinese University of Hong Kong (Shenzhen), Professor Li Baojun, Associate Professor Yang Xianguang, and Associate Professor Chen Ming from Jinan University.

This cutting-edge study received funding from various sources, including the National Natural Science Foundation of China, Guangdong Basic and Applied Basic Research Fund, Guangzhou Science and Technology Project, Shenzhen Key Laboratory of Functional Skeleton Materials, and Shenzhen Science and Technology Innovation Committee, underscoring the collaborative and interdisciplinary nature of the research.

For more information, the paper can be accessed at: 

[Paper link] (https://doi.org/10.1002/agt2.453) 

and the cover feature at: 

[Cover link] (https://doi.org/10.1002/agt2.554)