Organic oscillator and adaptive amplifier circuits for chemical vapor sensing
- 30 May 2002
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 91 (12), 10140-10146
- https://doi.org/10.1063/1.1476084
Abstract
Organic transistor based circuits that can be employed for chemical vapor sensing, are described. Such circuits have improved sensing characteristics in comparison with discrete transistor based sensors. Complementary ring oscillator based sensors have a stronger response to analytes such as octanol and allyl propionate compared to a single transistor. A fabrication process that combines organic semiconductor circuitry with Si is described. The design and advantages of adaptive differential amplifiers with high gain and feedback are described. Voltage gains of allow the detection of weak odorant inputs and the adaptive feedback allows for improved background elimination.
Keywords
This publication has 26 references indexed in Scilit:
- Electronic sensing of vapors with organic transistorsApplied Physics Letters, 2001
- Multi-parameter gas sensors based on organic thin-film-transistorsSensors and Actuators B: Chemical, 2000
- Large-scale complementary integrated circuits based on organic transistorsNature, 2000
- MetallophthalocyaninesCoordination Chemistry Reviews, 1998
- Low-cost all-polymer integrated circuitsApplied Physics Letters, 1998
- Integrated Optoelectronic Devices Based on Conjugated PolymersScience, 1998
- Organic thin-film transistors for organic light-emitting flat-panel display backplanesIEEE Journal of Selected Topics in Quantum Electronics, 1998
- High-Performance Plastic Transistors Fabricated by Printing TechniquesChemistry of Materials, 1997
- Temperature Dependence of the Field-Effect Mobility of Sexithiophene. Determination of the Density of TrapsJournal de Physique III, 1995
- Determination of field-effect mobility of poly(3-hexylthiophene) upon exposure to NH3 gasSynthetic Metals, 1990