Skip to main navigation Skip to search Skip to main content

Memorizing UV exposure energy in resistance - A smart patch based on conductive polymer

  • Dandan Wen
  • , Yumeng Liu
  • , Chen Yang
  • , Huiliang Liu
  • , Yichuan Wu
  • , Xiaoqian Li
  • , Weihua Cai
  • , Yong Cui
  • , Bo Zhao
  • , Huaiwu Zhang
  • , Feiming Bai
  • , Liwei Lin*
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We have successfully demonstrated a smart UV patch to memorize the accumulative energy from the exposure to UV light over a period of time. The sensing principle is based on changes in the electrical resistance of a composite made of photo-acid generator triphenyl sulfonium triflate (TST), poly aniline emeraldine (PANI-EB), polyethylene glycol (PEG) and carbon nanotubes (CNTs). The sheet resistance of the composite can drop five orders of magnitude within 30 minutes of exposure to the UV light using an LED light source of 10Mw/cm2. The photo-induced protonation process can release protons from photo acid generators. With the help of the polyethylene glycol and CNTs, protons can diffuse across the film and cause the doping of polyaniline emeraldine base into a conductive polyaniline salt state to increase the conductivity.

Original languageEnglish
Title of host publicationTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages754-757
Number of pages4
ISBN (Electronic)9781538627310
DOIs
StatePublished - 26 Jul 2017
Externally publishedYes
Event19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017 - Kaohsiung, Taiwan, Province of China
Duration: 18 Jun 201722 Jun 2017

Publication series

NameTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems

Conference

Conference19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017
Country/TerritoryTaiwan, Province of China
CityKaohsiung
Period18/06/1722/06/17

Keywords

  • Sheet resistance
  • UV sensor
  • carbon nanotube
  • passive sensor
  • wireless sensing

Fingerprint

Dive into the research topics of 'Memorizing UV exposure energy in resistance - A smart patch based on conductive polymer'. Together they form a unique fingerprint.

Cite this