A disposable polymer field effect transistor (FET) for pH measurement
Document Type
Conference Proceeding
Publication Date
1-1-2003
Abstract
In this paper, a fully disposable polymer field effect transistor (polymer-FET) for pH measurement has been proposed, fabricated and fully characterized. A well-defined poly (3-hexylthiophene) (P3HT) is adopted as the semi-conducting material and used as active layer. The polymer FET fabricated on a plastic substrate shows I-V characteristics that are comparable to those of Si-based field effect transistor (Si-FET). The polymer FET sensor has been integrated with a microfluidic channel and tested as a pH sensor, which shows a good linearity in the source-drain current versus the pH concentration. This work has envisaged a possibility of mass-producing low cost and disposable polymer sensors/circuits. Due to the low temperature process, the polymer-FET can be easily integrated with disposable lab-on-a-chips.
Publication Source (Journal or Book title)
TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
First Page
1172
Last Page
1175
Recommended Citation
Gao, C., Zhu, X., Choi, J., & Ahn, C. (2003). A disposable polymer field effect transistor (FET) for pH measurement. TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers, 2, 1172-1175. https://doi.org/10.1109/SENSOR.2003.1216980
