Fluorescent linear CO2-derived poly(hydroxyurethane) for cool white LED

Bin Liu; Ya-Ling Wang; Wei Bai; Jun-Ting Xu; Zhi-Kang Xu; Ke Yang; Yong-Zhen Yang; Xing-Hong Zhang; Bin-Yang Du

doi:10.1039/C7TC01236E

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Fluorescent linear CO₂-derived poly(hydroxyurethane) for cool white LED†

Bin Liu,^a Ya-Ling Wang,^b Wei Bai,^a Jun-Ting Xu,

^a Zhi-Kang Xu,

^a Ke Yang,

‡^c Yong-Zhen Yang,^b Xing-Hong Zhang

*^a and Bin-Yang Du*^a

Author affiliations

* Corresponding authors

^a Department of Polymer Science and Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, P. R. China
E-mail: xhzhang@zju.edu.cn, duby@zju.edu.cn

^b MOE Key Laboratory of Interface Science and Engineering in Advanced Materials, Research Center on Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, P. R. China

^c Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA

Abstract

The fluorescent properties of a linear poly(hydroxyurethane) (P1) from carbon dioxide, siloxane (Si–O–Si)-containing bisepoxide and diamine are described. P1 showed strong photoluminescence with a quantum yield of up to 23.6%, high photostability, and broad absorption and emission spectra either in bulk or solution. The flexibility and hydrophobicity of the Si–O–Si linkage in P1 were utilized to drive the intense aggregation of hydroxyurethane chromophores which combined with the hydrogen bonding interactions lead to strong photoluminescence. P1 was used as a single phosphor film for fabricating a low voltage, cool white light-emitting diode device with competitive performances.

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Article information

DOI: https://doi.org/10.1039/C7TC01236E
Article type: Paper
Submitted: 23 Mar 2017
Accepted: 26 Apr 2017
First published: 27 Apr 2017

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J. Mater. Chem. C, 2017,5, 4892-4898

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Fluorescent linear CO₂-derived poly(hydroxyurethane) for cool white LED

B. Liu, Y. Wang, W. Bai, J. Xu, Z. Xu, K. Yang, Y. Yang, X. Zhang and B. Du, J. Mater. Chem. C, 2017, 5, 4892 DOI: 10.1039/C7TC01236E

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Journal of Materials Chemistry C