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ID 113379
Title Alternative
Optical Ammonia Gas Sensor with Adjustable Sensitivity Using Silicon Microring Resonator Covered with Monolayer Graphene
Author
Sato, Masayasu Tokushima University
Kaito, Takamasa KRI
Liaw, Shien-Kuei National Taiwan University of Science and Technology
Content Type
Journal Article
Description
Integrated optic ammonia gas sensor using graphene covered silicon microring resonator is proposed. Ammonia gas adsorption increases the Fermi energy of graphene. The gas concentration is detected by the resonant-wavelength shift of microring resonator. The NH3 gas concentration from 0.5 to 1000 ppm is shown to be measured by the resonant wavelength from 1551.75 to 1551.27 nm. By applying voltage to the graphene, the Fermi energy is controlled to adjust the sensitivity and the range of detectable concentration.
Journal Title
Japanese Journal of Applied Physics
ISSN
13474065
00214922
NCID
AA12295836
AA11509854
Publisher
The Japan Society of Applied Physics
Volume
58
Issue
SJ
Start Page
SJJD05
Published Date
2019-07-18
Rights
© 2019 The Japan Society of Applied Physics
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Author
departments
Science and Technology