Organic electroluminescent sensor for pressure measurement

Yu Matsuda, Kaori Ueno, Hiroki Yamaguchi, Yasuhiro Egami, Tomohide Niimi

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We have proposed a novel concept of a pressure sensor called electroluminescent pressure sensor (ELPS) based on oxygen quenching of electroluminescence. The sensor was fabricated as an organic light-emitting device (OLED) with phosphorescent dyes whose phosphorescence can be quenched by oxygenmolecules, and with a polymer electrode which permeates oxygen molecules. The sensor was a single-layer OLED with Platinum (II) octaethylporphine (PtOEP) doped into poly(vinylcarbazole) (PVK) as an oxygen sensitive emissive layer and poly(3,4-ethylenedioxythiophene) mixed with poly(styrenesulfonate) (PEDOT:PSS) as an oxygen permeating polymer anode. The pressure sensitivity of the fabricated ELPS sample was equivalent to that of the sensor excited by an illumination light source. Moreover, the pressure sensitivity of the sensor is equivalent to that of conventional pressure-sensitive paint (PSP), which is an optical pressure sensor based on photoluminescence.

Original languageEnglish
Pages (from-to)13899-13906
Number of pages8
JournalSensors (Switzerland)
Volume12
Issue number10
DOIs
Publication statusPublished - 2012 Oct

Keywords

  • Optical sensor
  • Organic electroluminescence
  • Oxygen quenching
  • Oxygen sensor
  • Pressure-sensitive paint

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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