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

作　　者：Hao Rao Zicheng Liu Ming Chen Canze Zheng Liping Xu Junkai Liu Jacky W.Y.Lam Baojun Li Xianguang Yang Ben Zhong Tang 

机构地区：[1]Institute of Nanophotonics,College of Chemistry and Materials Science,Guangdong Provincial Key Laboratory of Nanophotonic Manipulation,Jinan University,Guangzhou,China [2]Department of Chemistry,Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction,Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Materials,The Hong Kong University of Science and Technology,Kowloon,Hong Kong,China [3]School of Science and Engineering,Shenzhen Institute of Aggregate Science and Technology,The Chinese University of Hong Kong,Shenzhen(CUHK-Shenzhen),Guangdong,China

出　　处：《Aggregate》2024年第2期250-260,共11页聚集体（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:22275072,11804120,61827822,51620105009;Guangdong Basic and Applied Basic Research Foundation,Grant/Award Number:2023A1515030209;Research Projects from Guangzhou,Grant/Award Number:2023A03J0018;Shenzhen Key Laboratory of Functional Aggregate Materials,Grant/Award Number:ZDSYS20211021111400001;the Science Technology Innovation Commission of Shenzhen Municipality,Grant/Award Numbers:KQTD20210811090142053,JCYJ20220818103007014。

摘　　要：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)dBμm^(−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.

关 键 词：AIE microfiber deep-blue emission energy transfer optical waveguide white light emission 

分 类 号：TN252[电子电信—物理电子学]