Skip to main navigation Skip to search Skip to main content

Bioinspired CS@PAN Electrospun Fibrous Aerogels with Vertical Capsule Vessels for Self-Feedback Temperature Sensing

  • Xianghui Kong
  • , Yue Li
  • , Lifan Shen*
  • , Jianming An
  • , Edwin Yue Bun Pun
  • , Hai Lin*
  • *Corresponding author for this work
  • Dalian Polytechnic University
  • City University of Hong Kong
  • Beijing University of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

Unconventional sensors with characteristics of portability, safety, remote manipulation, and high spatiotemproal resolution are highly desirable to detect varied temperature under specific conditions such as local temperature fields of the microenvironment. Herein, a 3D high-performance optical thermometry platform driven by the up-conversion green fluorescence of Er3+/Yb3+co-doped electrospun fibrous aerogels is developed. The system simply consists of polycrystalline-encapsulated (Y1-x-yErxYby)2O2S/polyacrylonitrile (YOS-EY/PAN) electrospun fibers and chitosan (CS). The flexible fibers form a hierarchically ordered bionic cellular structure through bio-based cross-linking, which avoids toxic chemical cross-linking. Additionally, the intense green emission is ascribed to 2H11/2/4S3/24I15/2transitions, as the main indicator to determine the relative sensitivity of 1.22% K-1at 303 K. More importantly, multipoint dispersed lanthanide (Ln) between cell walls confers stronger temperature sensing capability to aerogels. The successful strategy provides insights for the development of luminescence thermometry and opens a window for multidimensional temperature sensing.

Original languageEnglish
Pages (from-to)3714-3723
Number of pages10
JournalACS Applied Electronic Materials
Volume4
Issue number7
DOIs
StatePublished - 26 Jul 2022
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 12 - Responsible Consumption and Production
    SDG 12 Responsible Consumption and Production

Keywords

  • (YErY)OS/polyacrylonitrile
  • capsule space
  • electrospun fibrous aerogels
  • fluorescence intensity ratio
  • optical temperature sensing

Fingerprint

Dive into the research topics of 'Bioinspired CS@PAN Electrospun Fibrous Aerogels with Vertical Capsule Vessels for Self-Feedback Temperature Sensing'. Together they form a unique fingerprint.

Cite this