共 31 条
- [31] Hysteresis-Free Nanoplasmonic Pd-Au Alloy Hydrogen Sensors[J]. NANO LETTERS, 2015, 15 (05) : 3563 - 3570Wadell, CarlNugroho, Ferry Anggoro ArdyLidstrom, EmilIandolo, BeniaminoWagner, Jakob B.Langhammer, Christoph
Metamaterial for Hydrogen Sensing
被引：35
作者：
Beni, Takaaki
[1
]
Yamasaku, Naoki
[2
]
Kurotsu, Takuma
[1
]
To, Naoki
[1
]
Okazaki, Shinji
[2
]
Arakawa, Taro
[1
]
Balcytics, Armandas
[1
,4
,5
]
Seniutinas, Gediminas
[4
,8
]
Juodkazis, Saulius
[3
,4
,6
,7
]
Nishijima, Yoshiaki
[1
,3
]
机构：
[1] Yokohama Natl Univ, Dept Phys Elect & Comp Engn, Grad Sch Engn, Hodogaya Ku, 79-5 Tokiwadai, Yokohama, Kanagawa 2408501, Japan
[2] Yokohama Natl Univ, Grad Sch Engn, Dept Chem Mat Sci & Engn, Hodogaya Ku, 79-5 Tokiwadai, Yokohama, Kanagawa 2408501, Japan
[3] Yokohama Natl Univ, Inst Adv Sci, Hodogaya Ku, 79-5 Tokiwadai, Yokohama, Kanagawa 2408501, Japan
[4] Swinburne Univ Technol, Ctr Microphoton, Fac Sci Engn & Technol, Hawthorn, Vic 3122, Australia
[5] Ctr Phys Sci & Technol, A Gokauto 9, LT-01108 Vilnius, Lithuania
[6] Victorian Node Australian Natl Fabricat Facil, Melbourne Ctr Nanofabricat, 151 Wellington Rd, Clayton, Vic 3168, Australia
[7] Tokyo Inst Technol, Tokyo Tech World Res Hub Initiat WRHI, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528550, Japan
[8] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
来源：
ACS SENSORS
|
2019年
/
4卷
/
09期
基金：
日本学术振兴会;
关键词：
plasmonics;
plasmon absorbers;
metasurfaces;
optical detection;
hydrogen reactive materials;
hydrogen sensor;
OPTICAL-PROPERTIES;
GAS SENSORS;
YTTRIUM;
METAL;
STORAGE;
ALLOYS;
FILMS;
AU;
D O I：
10.1021/acssensors.9b00980
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A hydrogen sensor based on plasmonic metasurfaces is demonstrated to exhibit the industry-required 10 s reaction time and sensitivity. It consists of a layer of either Y or WO3 sandwiched between a top Pd nanodisk and a Au mirror at the base. The phase change layer (Y, WO3) reacts with hydrogen, and the corresponding change of the refractive index (permittivity) is detected by the spectral shift of the resonance dip in reflectance at the IR spectral window. This direct reflectance readout of the permittivity change due to hydrogen uptake is fast and is facilitated by radiation field enhancement extending into the phase change volume. Numerical modeling was used to elucidate the effects that real and imaginary parts of the refractive index exert on the spectral shifts of resonance. The mechanism of sensor performance is outlined, and a possibility to tune its spectral range of operation by the diameter of the Pd nanodisk and thickness of the phase change material makes this design applicable to other molecular detection applications including surface enhanced IR absorption.
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页码：2389 / 2394
页数：11
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