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From A Fluorescent Chromophore in Solution to An Efficient Emitter in the Solid State

  1. Dr. Yang Liu1,2,
  2. Yun Lv1,
  3. Xiying Zhang1,
  4. Shuming Chen3,
  5. Dr. Jacky W. Y. Lam2,
  6. Dr. Ping Lu2,
  7. Ryan T. K. Kwok2,
  8. Prof. Dr. Hoi Sing Kwok3,
  9. Prof. Dr. Xutang Tao1,
  10. Prof. Dr. Ben Zhong Tang2,4,*

Article first published online: 24 JUL 2012

DOI: 10.1002/asia.201200489

Issue

Chemistry – An Asian Journal

Chemistry – An Asian Journal

Volume 7, Issue 10, pages 2424–2428, October 2012

Additional Information

How to Cite

Liu, Y., Lv, Y., Zhang, X., Chen, S., Lam, J. W. Y., Lu, P., Kwok, R. T. K., Kwok, H. S., Tao, X. and Tang, B. Z. (2012), From A Fluorescent Chromophore in Solution to An Efficient Emitter in the Solid State. Chem. Asian J., 7: 2424–2428. doi: 10.1002/asia.201200489

Author Information

  1. 1

    State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100 (P. R. China)

  2. 2

    Department of Chemistry, Institute of Molecular Functional Materials, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong (China)

  3. 3

    Center for Display Research, HKUST, Kowloon, Hong Kong (China)

  4. 4

    Department of Polymer Science and Engineering, Key Laboratory of Macromolecular synthesis and Functionalization of the Ministry of Education of China, Zhejiang University, Hangzhou 310027 (P. R. China)

*Department of Chemistry, Institute of Molecular Functional Materials, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong (China)

Publication History

  1. Issue published online: 17 SEP 2012
  2. Article first published online: 24 JUL 2012
  3. Manuscript Received: 2 JUN 2012

Funded by

  • Research Grants Council of Hong Kong. Grant Numbers: 603509, 601608, CUHK2/CRF/08, HKUST2/CRF/10
  • Innovation and Technology Commission. Grant Numbers: ITP/008/09NP, ITS/168/09
  • University Grants Committee of Hong Kong. Grant Number: AoE/P-03/08
  • National Science Foundation of China. Grant Number: 20974028
  • Independent Innovation Foundation of Shandong University. Grant Number: 2011TB020

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Keywords:

  • aggregation-induced emission;
  • fluoranthene;
  • polycyclic aromatic hydrocarbons

Abstract

Polycyclic aromatic hydrocarbons (PAHs) normally exhibit efficient fluorescence in dilute solutions, whereas their emission is significantly quenched in the aggregated state due to the formation of π-aggregates/excimers. The rigid and planar structure of PAHs plays a positive role in terms of fluorescence in solution but a negative one in the aggregated state. To bestow PAHs a luminescent ability in the solid state, we constructed a non-coplanar PAH-substituted ethene. By using the planar PAH fluoranthene as a building block, a highly efficient solid-state emitter with a fluorescence quantum efficiency of unity in the aggregated state was obtained. OLEDs with contain the molecule as an emitter reach a luminance up to 20 520 cd m−2 and an efficiency of 10 cd A−1.

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