Unique Supramolecular Liquid-Crystal Phases with Different Two-Dimensional Crystal Layers

Yi Hu; Kuan Yi Wu; Tiantian Zhu; Peng Shen; Yi Zhou; Xiaohong Li; Chien-Lung Wang; Yingfeng Tu; Christopher Y. Li

doi:10.1002/anie.201805717

Unique Supramolecular Liquid-Crystal Phases with Different Two-Dimensional Crystal Layers

Yi Hu, Kuan Yi Wu, Tiantian Zhu, Peng Shen, Yi Zhou, Xiaohong Li, Chien-Lung Wang, Yingfeng Tu^*, Christopher Y. Li

^*Corresponding author for this work

Department of Applied Chemistry

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

7 Scopus citations

Abstract

We report herein a series of tetrablock-mimic azobenzene-containing [60]fullerene dyads that form supramolecular liquid crystals (LCs) from phase-segregated two-dimensional (2D) crystals. The unique double-, triple-, and quadruple-layer packing structure of fullerenes in the 2D crystals leads to different smectic supramolecular LC phases, and novel LC phase transitions were observed upon changes in the fullerene packing layer number in the 2D crystals. Interestingly, by combining the LC properties with 2D crystals, these materials show excellent electron mobility in the order of 10⁻³ cm² V⁻¹ s⁻¹, despite their relatively low fullerene content. Our results provide a novel method to manipulate 2D crystal layer thickness, with promising applications in optoelectronic devices.

Original language	English
Pages (from-to)	13454-13458
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	57
Issue number	41
DOIs	https://doi.org/10.1002/anie.201805717
State	Published - 8 Oct 2018

Keywords

electron mobility
fullerenes
liquid crystals
supramolecular chemistry
two-dimensional crystals

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title = "Unique Supramolecular Liquid-Crystal Phases with Different Two-Dimensional Crystal Layers",

abstract = "We report herein a series of tetrablock-mimic azobenzene-containing [60]fullerene dyads that form supramolecular liquid crystals (LCs) from phase-segregated two-dimensional (2D) crystals. The unique double-, triple-, and quadruple-layer packing structure of fullerenes in the 2D crystals leads to different smectic supramolecular LC phases, and novel LC phase transitions were observed upon changes in the fullerene packing layer number in the 2D crystals. Interestingly, by combining the LC properties with 2D crystals, these materials show excellent electron mobility in the order of 10−3 cm2 V−1 s−1, despite their relatively low fullerene content. Our results provide a novel method to manipulate 2D crystal layer thickness, with promising applications in optoelectronic devices.",

keywords = "electron mobility, fullerenes, liquid crystals, supramolecular chemistry, two-dimensional crystals",

author = "Yi Hu and Wu, {Kuan Yi} and Tiantian Zhu and Peng Shen and Yi Zhou and Xiaohong Li and Chien-Lung Wang and Yingfeng Tu and Li, {Christopher Y.}",

year = "2018",

month = oct,

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doi = "10.1002/anie.201805717",

language = "English",

volume = "57",

pages = "13454--13458",

journal = "Angewandte Chemie - International Edition",

issn = "1433-7851",

publisher = "John Wiley and Sons Ltd",

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Unique Supramolecular Liquid-Crystal Phases with Different Two-Dimensional Crystal Layers. / Hu, Yi; Wu, Kuan Yi; Zhu, Tiantian; Shen, Peng; Zhou, Yi; Li, Xiaohong; Wang, Chien-Lung; Tu, Yingfeng; Li, Christopher Y.

In: Angewandte Chemie - International Edition, Vol. 57, No. 41, 08.10.2018, p. 13454-13458.

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

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AU - Hu, Yi

AU - Wu, Kuan Yi

AU - Zhu, Tiantian

AU - Shen, Peng

AU - Zhou, Yi

AU - Li, Xiaohong

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AU - Tu, Yingfeng

AU - Li, Christopher Y.

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AB - We report herein a series of tetrablock-mimic azobenzene-containing [60]fullerene dyads that form supramolecular liquid crystals (LCs) from phase-segregated two-dimensional (2D) crystals. The unique double-, triple-, and quadruple-layer packing structure of fullerenes in the 2D crystals leads to different smectic supramolecular LC phases, and novel LC phase transitions were observed upon changes in the fullerene packing layer number in the 2D crystals. Interestingly, by combining the LC properties with 2D crystals, these materials show excellent electron mobility in the order of 10−3 cm2 V−1 s−1, despite their relatively low fullerene content. Our results provide a novel method to manipulate 2D crystal layer thickness, with promising applications in optoelectronic devices.

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