Tricolor flag-shaped nanobelt array and derivant 3D structures display concurrent conductive anisotropy, up-conversion fluorescence and magnetism

Xiaona Liu; Yunrui Xie; Liu Yang; Haina Qi; Qianli Ma; Xiangting Dong; Dan Li; Guixia Liu; Jinxian Wang; Wensheng Yu

Materials & Design (Dec 2021)

Tricolor flag-shaped nanobelt array and derivant 3D structures display concurrent conductive anisotropy, up-conversion fluorescence and magnetism

Xiaona Liu,
Yunrui Xie,
Liu Yang,
Haina Qi,
Qianli Ma,
Xiangting Dong,
Dan Li,
Guixia Liu,
Jinxian Wang,
Wensheng Yu

Affiliations

Xiaona Liu: Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
Yunrui Xie: Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
Liu Yang: Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
Haina Qi: Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
Qianli Ma: Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
Xiangting Dong: Corresponding authors.; Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
Dan Li: Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
Guixia Liu: Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
Jinxian Wang: Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
Wensheng Yu: Corresponding authors.; Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China

Journal volume & issue: Vol. 211
p. 110121

Abstract

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Unique-structured [NaYF4:Yb3+,Tm3+/polymethylmethacrylate (PMMA)]//[polyaniline (PANI)/PMMA]//[CoFe2O4/PMMA] fluorescent-conductive-magnetic tricolor flag-shaped nanobelt and array (marked as FCM-TNA) are innovatively designed and constructed by using tri-axial parallel electrospinning. Partition of three independent functional zones is microscopically realized in the tricolor flag-shaped nanobelt to avoid harmful mutual influences among three functions via confining luminescent, conductive and magnetic substances into their own domains, and thus achieving superior fluorescent-conductive-magnetic trifunction. Tricolor flag-shaped nanobelt used as building unit ensures excellent fluorescence, anisotropic conduction and magnetism of FCM-TNA. FCM-TNA emits blue fluorescence upon 980-nm laser excitation. Conductance ratio of conductive direction to insulating direction in FCM-TNA reaches 2.54 × 108 when the mass percentage of PANI to PMMA is settled at 70%, achieving high conductive anisotropy. By adjusting the contents of NaYF4:Yb3+,Tm3+ NPs, PANI and CoFe2O4 NPs, FCM-TNA exhibits tunable up-conversion fluorescence intensity, conductive anisotropy and magnetism. The formative mechanisms of tricolor flag-shaped nanobelt and FCM-TNA are advanced, and construction technologies are also established. Furthermore, neoteric 3D tubes and 3D + 2D complete banner-typed structures with similar multi-functionalities are derived from the FCM-TNA by using different construction strategies. The new design philosophy and technique can provide support for the design and construction of other new multifunctional anisotropic conductive materials in the future.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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