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Facile electrospinning preparation of color tunable flexible luminescent nanofiber

FEI BI1,* , SHANSHAN XIAO1, GUANGQING GAI1, XIANGTING DONG2,* , LI ZHAO1, LIYAN WANG1,*

Affiliation

  1. Laboratory of Building Energy Saving Technology Engineering, College of Material Sci ence and Engineering, Jilin Jianzhu University, Changchun 130118, China
  2. Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China

Abstract

A new structure o f YAG:7%Tb 3+ nano fiber s/PVP flexible luminescent nano fiber s has been successfully fabricated via electrospinning technology. Electrospun YAG:7%Tb 3+ nano fiber s a re respectively incorporated into polyvinyl pyrrolidone (PVP) matrix and electrospun into flexib le luminescent nano fiber s named as YAG:7%Tb 3+ nano fiber s/PVP flexible nano fiber s. The mean diameter of the flexible nanofibers is ca. 294±37.52 nm The emission peaks of Tb 3+ are observed under the excitation of 274 nm ultraviolet light and ascribed to the energy levels transitions of 5 D 4 5 F 6 (4 89 nm), 5 D 4 5 F 5 (544 nm), 7 D 4 5 F 4 (5 90 nm) and 5 D 4 7 F 3 (624 nm) of Tb 3+ ions , and the 5 D 4 5 F 5 energy levels transition at 544 nm is the predominant emission peak. The luminescent characteristics of obtained the flexi ble nanofibers can be tun ed by adding various amounts of YAG:7%Tb 3+ nanofibers. The possible formation mechanism of YAG:7%Tb 3+ nano fiber s/PVP flexible luminescent nano fiber s is also proposed. The YAG:7%Tb 3+ nanofibers are encapsulated in the PVP nanofibers which is expected to be used in biomedical field. The design conception and construction technology are of universal significance to fabricate other flexible nanofiber s..

Keywords

Electrospinning Lumines cence Flexible nanofiber YAG:Tb 3+.

Citation

FEI BI, SHANSHAN XIAO, GUANGQING GAI, XIANGTING DONG, LI ZHAO, LIYAN WANG, Facile electrospinning preparation of color tunable flexible luminescent nanofiber, Optoelectronics and Advanced Materials - Rapid Communications, 13, 3-4, March-April 2019, pp.255-261 (2019).

Submitted at: June 28, 2018

Accepted at: April 8, 2019