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Design, Synthesis and Luminescence Properties of a Novel White-Light Organic Luminescent Material Derived from Bis(8-hydroxyquinolinato)zinc(II)

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Abstract

In this paper, a novel white-light luminescent material derived from bis(8-hydroxyquinolinato)zinc(II), Zn(2DCDC-HCz-Q)2, was designed and synthesized, which is comprised of bis(8-hydroxyquinolinato)zinc (ZnQ2), 3-(dicyanomethylene)-5,5-dimethyl-cyclohexene (DCDC) and carbazole (Cz) groups serving as yellowish-green-, blue- and red-light emitting units, respectively. The luminescence properties of Zn(2DCDC-HCz-Q)2 were characterized and discussed. Zn(2DCDC-HCz-Q)2 showed remarkable white-light fluorescence, exhibiting CIE coordinates of around (0.32, 0.39) and coloration index of 77.7 %. During the emission process, ZnQ2 unit emits yellowish-green light by induction of the Cz group through Förster energy transfer, and red-light emission is realized by charge transfer from Cz ring to DCDC unit. Hence, Zn(2DCDC-HCz-Q)2 shows a great potential to be used in the fabrication of white-light organic light-emitting device.

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Acknowledgments

This work was financially supported by International Science & Technology Cooperation Program of China (2012DFR50460), National Natural Science Foundation of China (21071108, 21101111, 61274056, 61205179), Shanxi Provincial Key Innovative Research Team in Science and Technology (2012041011). W.-Y.W. thanks Hong Kong Baptist University (FRG2/11-12/156), Hong Kong Research Grants Council (HKBU203011 and HKUST2/CRF/10) and Areas of Excellence Scheme, University Grants Committee of HKSAR (Project No. [AoE/P-03/08]) for financial support.

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Authors and Affiliations

  1. Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan, 030024, China

    Hua Wang, Qingchen Dong, Xiaohong Fang, Yuying Hao & Bingshe Xu

  2. Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, China

    Hua Wang, Qingchen Dong & Bingshe Xu

  3. Laboratory of Advanced Materials, Department of Chemistry, Fudan University, 200438, Shanghai, China

    Juan Li

  4. College of Mining Technology, Taiyuan University of Technology, Taiyuan, 030024, China

    Xiaohong Fang & Huixia Xu

  5. College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan, 030024, China

    Yuying Hao

  6. Institute of Molecular Functional Materials, Department of Chemistry and Institute of Advanced Materials, Hong Kong Baptist University, Waterloo Road, Hong Kong, China

    Wai-Yeung Wong

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  1. Hua Wang
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  2. Qingchen Dong
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  3. Juan Li
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  4. Xiaohong Fang
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  5. Yuying Hao
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  7. Bingshe Xu
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  8. Wai-Yeung Wong
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Correspondence to Hua Wang or Wai-Yeung Wong.

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Special Issue in memory of Professor Dwight A. Sweigart.

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Wang, H., Dong, Q., Li, J. et al. Design, Synthesis and Luminescence Properties of a Novel White-Light Organic Luminescent Material Derived from Bis(8-hydroxyquinolinato)zinc(II). J Inorg Organomet Polym 24, 201–207 (2014). https://doi.org/10.1007/s10904-013-9907-9

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  • DOI: https://doi.org/10.1007/s10904-013-9907-9

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