Fluorescent Thermal Feedback in Ho3+/Yb3+ Doped Y2Ti2O7 Electrospun Nanofibers

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Erkang Hu
  • Peijian Lin
  • Jinliang Yuan
  • Hai Lin
  • Xin Zhao

Detail(s)

Original languageEnglish
Article number027510
Journal / PublicationJournal of the Electrochemical Society
Volume167
Issue number2
Online published17 Jan 2020
Publication statusPublished - 2020

Abstract

One-dimensional (1D) Y2Ti2O7 (YTO): Ho3+/Yb3+ nanofibers with diameters ranging from 300 to 400 nm were synthesized by an electrospinning technology and the structure of YTO nanofibers was identified as face-centered cubic pyrochlores. The detected green and red signals in the upconversion emission spectra under 980 nm laser excitation are due to the radiative transitions (5F4 5S2) → 5I8 and 5F55I8 of Ho3+ ions, respectively. YTO: Ho3+/Yb3+ nanofibers have the characteristics of porosity, three-dimensional braidability, high specific surface area and controllable structure, which improves the performance of optical temperature sensing. Furthermore, the nanofiber membranes consisting of YTO: Ho3+/Yb3+ with temperature sensing performance can work steadily at medium temperature range in view of its fast responses and high stability, moreover, a maximum sensitivity about 0.18% K-1 at 423 K, which indicates that the nanofibers have good thermal sensitivity. 1D nanostructure rare earth ion-doped cubic pyrochlore material was proven to obtain excellent upconversion luminescence properties, which provides a new route for the development of sensitive optical temperature-sensing materials.

Research Area(s)

  • UP-CONVERSION LUMINESCENCE, UPCONVERTING NANOPARTICLES, CARBON NANOFIBER, EMISSION, ER3+, YB3+, FABRICATION, NANOSTRUCTURES, PERFORMANCE, WAVELENGTH

Citation Format(s)

Fluorescent Thermal Feedback in Ho3+/Yb3+ Doped Y2Ti2O7 Electrospun Nanofibers. / Hu, Erkang; Lin, Peijian; Pun, Edwin Yue-Bun; Yuan, Jinliang; Lin, Hai; Zhao, Xin.

In: Journal of the Electrochemical Society, Vol. 167, No. 2, 027510, 2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review