Dyes for use in integrated optical sensors

Daniel Citterio, Luzi Jenny, Stefan Rásonyi, Ursula E. Spichiger

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In order to use chemically selective optode membranes in monolithically integrated optical sensors, the membrane's optical signal output ideally has to be in the near-infrared (NIR) wavelength range. Dyes showing light absorbance in the NIR range have been evaluated for their suitability as chromoionophores in plasticized poly(vinyl chloride) (PVC) membranes. The influence of the membrane plasticizer polarity on the optical properties and on the acidity of the dye has been investigated. It is shown that the pKa of the chromoionophore in the membrane phase can be shifted by changing the plasticizer polarity.

Original languageEnglish
Pages (from-to)202-206
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume39
Issue number1-3
Publication statusPublished - 1997 Mar
Externally publishedYes

Fingerprint

Optical sensors
optical measuring instruments
Coloring Agents
Dyes
dyes
membranes
Membranes
Plasticizers
plasticizers
polarity
Infrared radiation
Vinyl Chloride
Polyvinyl Chloride
Acidity
Polyvinyl chlorides
acidity
optical communication
Optical properties
chlorides
optical properties

Keywords

  • Chromoionophores
  • Integrated optical sensors
  • Near-infrared dyes
  • Plasticizers

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Citterio, D., Jenny, L., Rásonyi, S., & Spichiger, U. E. (1997). Dyes for use in integrated optical sensors. Sensors and Actuators, B: Chemical, 39(1-3), 202-206.

Dyes for use in integrated optical sensors. / Citterio, Daniel; Jenny, Luzi; Rásonyi, Stefan; Spichiger, Ursula E.

In: Sensors and Actuators, B: Chemical, Vol. 39, No. 1-3, 03.1997, p. 202-206.

Research output: Contribution to journalArticle

Citterio, D, Jenny, L, Rásonyi, S & Spichiger, UE 1997, 'Dyes for use in integrated optical sensors', Sensors and Actuators, B: Chemical, vol. 39, no. 1-3, pp. 202-206.
Citterio D, Jenny L, Rásonyi S, Spichiger UE. Dyes for use in integrated optical sensors. Sensors and Actuators, B: Chemical. 1997 Mar;39(1-3):202-206.
Citterio, Daniel ; Jenny, Luzi ; Rásonyi, Stefan ; Spichiger, Ursula E. / Dyes for use in integrated optical sensors. In: Sensors and Actuators, B: Chemical. 1997 ; Vol. 39, No. 1-3. pp. 202-206.
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