High speed and high resolution chemical imaging based on a new type of OLED-LAPS set-up
- 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.
| Author: | Frederik WernerORCiD, Torsten WagnerORCiD, Ko-ichiro Miyamoto, Tatsuo Yoshinobu, Michael Josef SchöningORCiD |
|---|---|
| DOI: | https://doi.org/10.1016/j.snb.2011.12.102 |
| ISSN: | 0925-4005 |
| Parent Title (English): | Sensors and Actuators B: Chemical |
| Publisher: | Elsevier |
| Place of publication: | Amsterdam |
| Document Type: | Article |
| Language: | English |
| Year of Completion: | 2012 |
| Date of the Publication (Server): | 2012/12/18 |
| Volume: | 175 |
| First Page: | 118 |
| Last Page: | 122 |
| Note: | Part of special issue "Selected Papers presented at Eurosensors XXV" |
| Link: | https://doi.org/10.1016/j.snb.2011.12.102 |
| Zugriffsart: | campus |
| Institutes: | FH Aachen / Fachbereich Medizintechnik und Technomathematik |
| FH Aachen / INB - Institut für Nano- und Biotechnologien |
