Refine
Year of publication
Document Type
- Article (92)
- Conference Proceeding (11)
- Part of a Book (2)
Has Fulltext
- no (105) (remove)
Keywords
- Light-addressable potentiometric sensor (3)
- LAPS (2)
- light-addressable potentiometric sensor (2)
- Chemical images (1)
- Chemical imaging (1)
- Chemical imaging sensor (1)
- Chemical sensor (1)
- EIS capacitive sensor (1)
- Field-effect device (1)
- Light-addressable Potentiometric Sensor (1)
- MOS (1)
- Negative impedance convertor (1)
- Organic light-emitting diode display (1)
- Potentiometry (1)
- Resonance-mode measurement (1)
- actuator-sensor system (1)
- artificial olfactory image (1)
- aseptic parameters (1)
- catalytic metal (1)
- chemical sensor (1)
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.