Super-Nernstian response of pH detection using metallic tungsten sensing electrode and extended-gate field effect transistor

Yen Chieh Huang, Shui Jinn Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

EGFET pH sensor based on metallic W sensing electrode with stable and superior performance (65.86 mV/pH, r2=0.9972) has been demonstrated. The enhanced proton-exchange process and/or the number of H+ ions amplified by transferred electrons related to the hydrolyzation of W could be responsible for the super-Nernstian response of the proposed pH sensors. Firm understanding of the interfacial electronic reactions would be necessary for further development of W-based pH sensors.

Original languageEnglish
Title of host publication73rd Annual Device Research Conference, DRC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages105-106
Number of pages2
ISBN (Electronic)9781467381345
DOIs
Publication statusPublished - 2015 Aug 3
Event73rd Annual Device Research Conference, DRC 2015 - Columbus, United States
Duration: 2015 Jun 212015 Jun 24

Publication series

NameDevice Research Conference - Conference Digest, DRC
Volume2015-August
ISSN (Print)1548-3770

Other

Other73rd Annual Device Research Conference, DRC 2015
CountryUnited States
CityColumbus
Period15-06-2115-06-24

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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    Huang, Y. C., & Wang, S. J. (2015). Super-Nernstian response of pH detection using metallic tungsten sensing electrode and extended-gate field effect transistor. In 73rd Annual Device Research Conference, DRC 2015 (pp. 105-106). [7175577] (Device Research Conference - Conference Digest, DRC; Vol. 2015-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/DRC.2015.7175577