Morphology transition and aggregation-induced emission of an intramolecular charge-transfer compound |
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Authors: | Xu Jialiang Liu Xiaofeng Lv Jing Zhu Mei Huang Changshui Zhou Weidong Yin Xiaodong Liu Huibiao Li Yuliang Ye Jianping |
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Affiliation: | Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Center for Molecular Sciences, Chinese Academy of Sciences, Beijing, P.R. China. |
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Abstract: | An intramolecular charge-transfer (ICT) compound, (TCBD)2OPV3, has been synthesized and fabricated into one-dimensional nanotubes by a reprecipitation method. The observation of SEM and TEM showed the nanotubes were formed from their zero-dimensional precursors of hollow nanospheres. Reconstruction was found to happen during the morphology transition progress. The morphology transition and reconstruction are proposed to be a "curvature strain releasing" process driven by donor-acceptor dipole-dipole interactions. An aggregation-induced emission (AIE) effect was observed for (TCBD)2OPV3. Both aggregates of vesicles and nanotubes were observed to be good red emitters with near-infrared end emission of 750-850 nm, which endows the material with potential applications in the fields of optical devices, biosensors, and biolabels. |
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