High speed and high resolution chemical imaging based on a new type of OLED-LAPS set-up

Carl Frederik Werner; Torsten Wagner; Ko Ichiro Miyamoto; Tatsuo Yoshinobu; Michael J. Schöning

doi:10.1016/j.snb.2011.12.102

High speed and high resolution chemical imaging based on a new type of OLED-LAPS set-up

Carl Frederik Werner, Torsten Wagner, Ko Ichiro Miyamoto, Tatsuo Yoshinobu, Michael J. Schöning

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Light-addressable potentiometric sensors (LAPS) are field-effect-based sensors. A modulated light source is used to define the particular measurement spot to perform spatially resolved measurements of chemical species and to generate chemical images. In this work, an organic-LED (OLED) display has been chosen as a light source. This allows high measurement resolution and miniaturisation of the system. A new developed driving method for the OLED display optimised for LAPS-based measurements is demonstrated. The new method enables to define modulation frequencies between 1 kHz and 16 kHz and hence, reduces the measurement time of a chemical image by a factor of 40 compared to the traditional addressing of an OLED display.

Original language	English
Pages (from-to)	118-122
Number of pages	5
Journal	Sensors and Actuators, B: Chemical
Volume	175
DOIs	https://doi.org/10.1016/j.snb.2011.12.102
Publication status	Published - 2012 Dec 1

Keywords

Chemical imaging
Chemical sensor
Light-addressable potentiometric sensor (LAPS)
OLED display

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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abstract = "Light-addressable potentiometric sensors (LAPS) are field-effect-based sensors. A modulated light source is used to define the particular measurement spot to perform spatially resolved measurements of chemical species and to generate chemical images. In this work, an organic-LED (OLED) display has been chosen as a light source. This allows high measurement resolution and miniaturisation of the system. A new developed driving method for the OLED display optimised for LAPS-based measurements is demonstrated. The new method enables to define modulation frequencies between 1 kHz and 16 kHz and hence, reduces the measurement time of a chemical image by a factor of 40 compared to the traditional addressing of an OLED display.",

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AU - Wagner, Torsten

AU - Miyamoto, Ko Ichiro

AU - Yoshinobu, Tatsuo

AU - Schöning, Michael J.

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