Aggregation-induced emission, self-assembly, and electroluminescence of 4,4′-bis(1,2,2-triphenylvinyl)biphenyl

Zujin Zhao; Shuming Chen; Xiaoyuan Shen; Faisal Mahtab; Yong Yu; Ping Lu; Jacky W. Y. Lam; Hoi Sing Kwok; Ben Zhong Tang

doi:10.1039/B915271G

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Chemical Communications

Issue 5, 2010

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Aggregation-induced emission, self-assembly, and electroluminescence of 4,4′-bis(1,2,2-triphenylvinyl)biphenyl

Zujin Zhao , Shuming Chen , Xiaoyuan Shen , Faisal Mahtab , Yong Yu , Ping Lu , Jacky W. Y. Lam , Hoi Sing Kwok and Ben Zhong Tang

Chem. Commun., 2010, 46, 686-688

DOI: 10.1039/B915271G
Received 28 Jul 2009, Accepted 25 Sep 2009
First published on the web 14 Oct 2009

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Two is better than one: a luminogen comprised of two units of tetraphenylethene (BTPE) emits more efficiently than that with one tetraphenylethene unit in the solid state; self-assembly of the BTPE molecules affords crystalline microfibers that fluoresce in 100% efficiency, giving the largest effect of aggregation-induced emission (α_AIE → ∞); BTPE-based electroluminescence devices emit in current efficiency up to [similar] 7.3 cd/A.

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Supplementary Info

Experimental procedures and characterisation data for the synthesis of BTPE, absorption spectrum of its THF solution, ED pattern of its amorphous and crystalline aggregates formed in aqueous mixtures, XRD pattern of its microfibers, and plots of current density vs. voltage and external quantum efficiency vs. current density of its EL devices
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Zujin Zhao
Shuming Chen
Xiaoyuan Shen
Faisal Mahtab
Yong Yu
Ping Lu
Jacky W. Y. Lam
Hoi Sing Kwok
Ben Zhong Tang

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Chemical Communications

Aggregation-induced emission, self-assembly, and electroluminescence of 4,4′-bis(1,2,2-triphenylvinyl)biphenyl

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