title: Electrodes for Semiconductor Gas Sensors.
abstract: The electrodes of semiconductor gas sensors are important in characterizing sensors based on their sensitivity, selectivity, reversibility, response time, and long-term stability. The types and materials of electrodes used for semiconductor gas sensors are analyzed. In addition, the effect of interfacial zones and surface states of electrode-semiconductor interfaces on their characteristics is studied. This study describes that the gas interaction mechanism of the electrode-semiconductor interfaces should take into account the interfacial zone, surface states, image force, and tunneling effect.
authors.affiliation: Department of Electronic Engineering, Kyungnam University, 7 Kyungnamdaehak-ro, Masanhappo-gu, Changwon 51767, Korea. sensors@kyungnam.ac.kr.
authors.forename: Sung Pil
authors.initials: SP
authors.lastname: Lee
keywords: electrode materials; electrodes; interfacial layer; semiconductor gas sensors; transport mechanism