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Open seminar

演 題 「AIE Luminogens」
日 時 2014年11月28日(金) 10:00 より 11:30 まで
講演者 Prof. Benzhong Tang (Academician of Chinese Academy of Sciences, The Hongkong University of Science and Technology)
場 所

山手4号館3階会議室

概 要

Typical chromophores usually suffer from weakening or quenching of light emission caused by aggregation. This not orious photophysical effect is practically harmful, as luminophores are commonly used for real-world applications in solid state or aqueous media, where chromophores tend to form aggregates.  We have discovered a diametrically opposite phenomenon that chromophores are non-emissive when molecularly dissolved and induced to luminesce by aggregate formation.  We termed this unusual process as aggregation-induced emission (AIE) and identified the restriction of intramolecular motion (RIM) as the main cause for the AIE effect.  Based on the RIM mechanism, we have developed a wide variety of AIE luminogens with broad emission range covering visible and near-IR region and high luminescence quantum yields.  We have demonstrated the great utility of the AIE systems and explored their high-tech applications in such areas as optoelectronic devices, chemo/biosensing and biological imaging.

References:
1.  Rongrong Hu, Nelson L. C. Leung and Ben Zhong Tang. Chem. Soc. Rev. 2014, 43, 4494-4562.
2.  Anjun Qin, Jacky W. Y. Lam and Ben Zhong Tang. Prog. Polym. Sci. 2012, 37, 182-209.

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江 東林