Refine
Year of publication
- 2017 (72) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (41)
- INB - Institut für Nano- und Biotechnologien (23)
- IfB - Institut für Bioengineering (13)
- Fachbereich Chemie und Biotechnologie (11)
- Fachbereich Energietechnik (6)
- Fachbereich Bauingenieurwesen (5)
- Fachbereich Elektrotechnik und Informationstechnik (5)
- Fachbereich Luft- und Raumfahrttechnik (5)
- Institut fuer Angewandte Polymerchemie (3)
- Solar-Institut Jülich (3)
Has Fulltext
- no (72)
Language
- English (72) (remove)
Document Type
- Article (72) (remove)
Keywords
- 3D nonlinear finite element model (1)
- CNOT (1)
- Capacitive field-effect (1)
- Chemical images (1)
- Chemical sensor (1)
- Dehydrogenase (1)
- Diaphorase (1)
- Dry-low-NOx (DLN) combustion (1)
- EIS capacitive sensor (1)
- Effective modal mass (1)
Is part of the Bibliography
- no (72)
To study chemical and biological processes, spatially resolved determination of the concentrations of one or more analyte species is of distinct interest. With a light-addressable potentiometric sensor (LAPS), chemical images can be created, which visualize the concentration distribution above the sensor plate. One important challenge is to achieve a good lateral resolution in order to detect events that take place in a small and limited region. LAPS utilizes a focused light spot to address the measurement region. By moving this light spot along the semiconductor sensor plate, the concentration distribution can be observed. In this study, we show that utilizing a pulse as light excitation instead of a traditionally used continuously modulated light excitation, the lateral resolution can be improved by a factor of 6 or more.