TY - JOUR
T1 - High speed and high resolution chemical imaging based on a new type of OLED-LAPS set-up
AU - Werner, Carl Frederik Benedikt
AU - Wagner, Torsten
AU - Miyamoto, Ko Ichiro
AU - Yoshinobu, Tatsuo
AU - Schöning, Michael J.
N1 - Funding Information:
The authors gratefully thank the Marubun Research Promotion Foundation for the financial support of this work.
PY - 2012/12
Y1 - 2012/12
N2 - 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.
AB - 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.
KW - Chemical imaging
KW - Chemical sensor
KW - Light-addressable potentiometric sensor (LAPS)
KW - OLED display
UR - http://www.scopus.com/inward/record.url?scp=84870239867&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84870239867&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2011.12.102
DO - 10.1016/j.snb.2011.12.102
M3 - Article
AN - SCOPUS:84870239867
SN - 0925-4005
VL - 175
SP - 118
EP - 122
JO - Sensors and Actuators B: Chemical
JF - Sensors and Actuators B: Chemical
ER -