Mesomorphic and luminescent properties of disubstituted polyacetylenes bearing biphenyl pendants

Jacky W.Y. Lam; Chi Kong Law; Yuping Dong; Jiannong Wang; Weikun Ge; Ben Zhong Tang

doi:10.1016/S0925-3467(02)00157-X

Mesomorphic and luminescent properties of disubstituted polyacetylenes bearing biphenyl pendants

Jacky W.Y. Lam, Chi Kong Law, Yuping Dong, Jiannong Wang, Weikun Ge, Ben Zhong Tang^*

^*Corresponding author for this work

Hong Kong University of Science and Technology

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Liquid crystalline and light emitting properties of two new disubstituted polyacetylenes bearing biphenyl pendants (-{(R)CC[(CH₂)₄OCO-Biph-OC₇H₁₅]} _n-, RCH₃ (1), C₆H₅ (2), Biph=4,4^′-biphenylyl) were investigated. Whereas 1 formed enantiotropic nematic phase, 2 was non-mesomorphic. Upon photoexcitation, the THF solutions of 1 and 2 emitted strong UV and blue light of 369 and 460 nm, respectively, whose quantum efficiencies were higher than that of poly(1-phenyl-1-octyne), a highly luminescent disubstituted polyacetylene.

Original language	English
Pages (from-to)	321-324
Number of pages	4
Journal	Optical Materials
Volume	21
Issue number	1-3
DOIs	https://doi.org/10.1016/S0925-3467(02)00157-X
Publication status	Published - 1 Jan 2003
Externally published	Yes

Keywords

Disubstituted polyacetylene
Light emission
Photoluminescence

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10.1016/S0925-3467(02)00157-X

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Lam, J. W. Y., Law, C. K., Dong, Y., Wang, J., Ge, W., & Tang, B. Z. (2003). Mesomorphic and luminescent properties of disubstituted polyacetylenes bearing biphenyl pendants. Optical Materials, 21(1-3), 321-324. https://doi.org/10.1016/S0925-3467(02)00157-X

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abstract = "Liquid crystalline and light emitting properties of two new disubstituted polyacetylenes bearing biphenyl pendants (-{(R)CC[(CH2)4OCO-Biph-OC7H15]} n-, RCH3 (1), C6H5 (2), Biph=4,4′-biphenylyl) were investigated. Whereas 1 formed enantiotropic nematic phase, 2 was non-mesomorphic. Upon photoexcitation, the THF solutions of 1 and 2 emitted strong UV and blue light of 369 and 460 nm, respectively, whose quantum efficiencies were higher than that of poly(1-phenyl-1-octyne), a highly luminescent disubstituted polyacetylene.",

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author = "Lam, {Jacky W.Y.} and Law, {Chi Kong} and Yuping Dong and Jiannong Wang and Weikun Ge and Tang, {Ben Zhong}",

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T1 - Mesomorphic and luminescent properties of disubstituted polyacetylenes bearing biphenyl pendants

AU - Lam, Jacky W.Y.

AU - Law, Chi Kong

AU - Dong, Yuping

AU - Wang, Jiannong

AU - Ge, Weikun

AU - Tang, Ben Zhong

PY - 2003/1/1

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N2 - Liquid crystalline and light emitting properties of two new disubstituted polyacetylenes bearing biphenyl pendants (-{(R)CC[(CH2)4OCO-Biph-OC7H15]} n-, RCH3 (1), C6H5 (2), Biph=4,4′-biphenylyl) were investigated. Whereas 1 formed enantiotropic nematic phase, 2 was non-mesomorphic. Upon photoexcitation, the THF solutions of 1 and 2 emitted strong UV and blue light of 369 and 460 nm, respectively, whose quantum efficiencies were higher than that of poly(1-phenyl-1-octyne), a highly luminescent disubstituted polyacetylene.

AB - Liquid crystalline and light emitting properties of two new disubstituted polyacetylenes bearing biphenyl pendants (-{(R)CC[(CH2)4OCO-Biph-OC7H15]} n-, RCH3 (1), C6H5 (2), Biph=4,4′-biphenylyl) were investigated. Whereas 1 formed enantiotropic nematic phase, 2 was non-mesomorphic. Upon photoexcitation, the THF solutions of 1 and 2 emitted strong UV and blue light of 369 and 460 nm, respectively, whose quantum efficiencies were higher than that of poly(1-phenyl-1-octyne), a highly luminescent disubstituted polyacetylene.

KW - Disubstituted polyacetylene

KW - Light emission

KW - Photoluminescence

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SP - 321

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JF - Optical Materials

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Mesomorphic and luminescent properties of disubstituted polyacetylenes bearing biphenyl pendants

Abstract

Keywords

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