Crossref journal-article
IOP Publishing
Japanese Journal of Applied Physics (266)
Abstract

The first reported NO gas sensor based on a surface photovoltage (SPV) semiconductor device system is fabricated with a metal/SiO2(self-ordered hexagonal mesoporous)/Si3N4/SiO2/Si structure (MIS). A size controlled silicate mesoporous film is successfully synthesized by spin coating on a Si3N4/SiO2/Si silicon wafer using poly(ethylene oxide)–poly(propylene oxide)–poly(ethylene oxide) (Pluronic P123=EO20PO70EO20) triblock copolymers as a template. The characteristics of the mesoporous films were investigated by X-ray diffraction (XRD) and transmission electron microscope (TEM). The sensing properties of the self-ordered hexagonal mesoporous SPV system have been investigated by repeated exposure to NO gas and air. The changes in the average value and phase of the AC photocurrent (Iph) have been observed after exposure of the films to 100 ppm NO gas. The response of the alternative photocurrent results from the physical adsorption and chemical interaction between detected NO gases and the self-ordered hexagonal mesoporous film.

Bibliography

Zhou, H.-S., Yamada, T., Asai, K., Honma, I., Uchida, H., & Katsube, T. (2001). NO Gas Sensor Based on Surface Photovoltage System Fabricated by Self-Ordered Hexagonal Mesoporous Silicate Film. Japanese Journal of Applied Physics, 40(12R), 7098.

Authors 6
  1. Hao-Shen Zhou (first)
  2. Takeo Yamada (additional)
  3. Keisuke Asai (additional)
  4. Itaru Honma (additional)
  5. Hidekazu Uchida (additional)
  6. Teruaki Katsube (additional)
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Dates
Type When
Created 22 years, 11 months ago (Oct. 1, 2002, 4:51 p.m.)
Deposited 2 years, 4 months ago (April 23, 2023, 1:03 p.m.)
Indexed 6 months, 1 week ago (Feb. 21, 2025, 5:32 a.m.)
Issued 23 years, 9 months ago (Dec. 1, 2001)
Published 23 years, 9 months ago (Dec. 1, 2001)
Published Print 23 years, 9 months ago (Dec. 1, 2001)
Funders 0

None

@article{Zhou_2001, title={NO Gas Sensor Based on Surface Photovoltage System Fabricated by Self-Ordered Hexagonal Mesoporous Silicate Film}, volume={40}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.40.7098}, DOI={10.1143/jjap.40.7098}, number={12R}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Zhou, Hao-Shen and Yamada, Takeo and Asai, Keisuke and Honma, Itaru and Uchida, Hidekazu and Katsube, Teruaki}, year={2001}, month=dec, pages={7098} }