Title :
Molecularly imprinted organic transistor-based sensor for selective trace chemical vapor detection
Author :
Zheng, H. ; Gangopadhyay, S.
Author_Institution :
Univ. of Missouri-Columbia, Columbia, MO, USA
Abstract :
We report a vapor phase molecular imprinting (MIP) technique suitable for an organic field-effect transistors (OFET)-based sensor. This OFET-based sensor using pentacene as the molecularly imprinted monomer showed enhanced selectivity to 2, 4-dinitrotoluene (DNT) vapor against various interfering analytes. This method can be extended to improve the selectivity of most OFET- and chem-resistor based sensors without adversely affecting the device´s electronic properties, which is promising for the development of highly selective, low-cost, flexible OFET sensors.
Keywords :
gas sensors; organic field effect transistors; resistors; 2,4-dinitrotoluene vapor; DNT vapor; MIP technique; OFET; chemresistor; electronic property; molecularl y imprinted organic transistor-based sensor; molecularly imprinted monomer; organic field-effect transistors; pentacene; selective trace chemical vapor detection; vapor phase molecular imprinting technique; Annealing; Nanoscale devices; OFETs; Plasma measurements; Sensors; Time measurement; 2,4-Dinitrotoluene; Molecular Imprint; Organic Field-Effect-Transistor; Selectivity; Trace Vapor Detector;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), 2015 Transducers - 2015 18th International Conference on
Conference_Location :
Anchorage, AK
DOI :
10.1109/TRANSDUCERS.2015.7181003
