JPWO2017002854A1 - ガスセンサ及びその使用方法 - Google Patents
ガスセンサ及びその使用方法 Download PDFInfo
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- JPWO2017002854A1 JPWO2017002854A1 JP2017526396A JP2017526396A JPWO2017002854A1 JP WO2017002854 A1 JPWO2017002854 A1 JP WO2017002854A1 JP 2017526396 A JP2017526396 A JP 2017526396A JP 2017526396 A JP2017526396 A JP 2017526396A JP WO2017002854 A1 JPWO2017002854 A1 JP WO2017002854A1
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- gas sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
- G01N27/127—Composition of the body, e.g. the composition of its sensitive layer comprising nanoparticles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/414—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
- G01N27/4146—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS involving nanosized elements, e.g. nanotubes, nanowires
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0054—Specially adapted to detect a particular component for ammonia
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/414—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
- G01N27/4141—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS specially adapted for gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
Description
先ず、第1の実施形態について説明する。図1は、第1の実施形態に係るガスセンサの構造を示す断面図である。
VFB=φg−φs
ΔVFB=Δφg
次に、第2の実施形態について説明する。図10は、第2の実施形態に係るガスセンサの構造を示す断面図である。
次に、第3の実施形態について説明する。図11は、第3の実施形態に係るガスセンサの構造を示す断面図である。
次に、第4の実施形態について説明する。図12Aは、第4の実施形態に係るガスセンサの構造を示す断面図である。
次に、第5の実施形態について説明する。図14Aは、第5の実施形態に係るガスセンサの構造を示す断面図である。
VFB=φg−φs
Claims (12)
- 半導体層と、
前記半導体層上方に設けられ、少なくとも一部が気体に接するグラフェン膜と、
前記半導体層と前記グラフェン膜との間のバリア膜と、
を有することを特徴とするガスセンサ。 - 前記半導体層の表面に前記バリア膜の下方の部分を間に挟むようにして設けられた2個の電極を有することを特徴とする請求項1に記載のガスセンサ。
- 前記バリア膜を覆う層間絶縁膜を有し、
前記グラフェン膜が前記層間絶縁膜上に設けられ、
前記グラフェン膜が前記層間絶縁膜内の導電層を介して前記バリア膜に電気的に接していることを特徴とする請求項1又は2に記載のガスセンサ。 - 前記グラフェン膜が前記バリア膜に直接接していることを特徴とする請求項1又は2に記載のガスセンサ。
- 前記グラフェン膜に接する第1の電極と、
前記半導体層に接する第2の電極と、
を有することを特徴とする請求項1に記載のガスセンサ。 - 前記グラフェン膜上のナノ粒子を有することを特徴とする請求項1乃至5のいずれか1項に記載のガスセンサ。
- 前記グラフェン膜に複数の孔が形成されていることを特徴とする請求項1乃至6のいずれか1項に記載のガスセンサ。
- 前記孔のエッジが化学修飾されていることを特徴とする請求項7に記載のガスセンサ。
- 前記半導体層の材料は、IV族半導体、III−V族化合物半導体、II−VI族化合物半導体、酸化物半導体、有機物半導体、金属カルコゲナイド系半導体、層状物質半導体、半導体カーボンナノチューブ又はグラフェンナノリボンであることを特徴とする請求項1乃至8のいずれか1項に記載のガスセンサ。
- 前記バリア膜の材料は、シリコン酸化物、シリコン窒化物、シリコン酸窒化物、ゲルマニウム酸化物、高誘電率絶縁物又は層状絶縁物であることを特徴とする請求項1乃至9のいずれか1項に記載のガスセンサ。
- 前記半導体層の材料が第1の化合物半導体であり、
前記バリア膜の材料が第2の化合物半導体であり、
前記第2の化合物半導体のバンドギャップが前記第1の化合物半導体のバンドギャップよりも広いことを特徴とする請求項1乃至8のいずれか1項に記載のガスセンサ。 - 請求項1乃至11のいずれか1項に記載のガスセンサの前記グラフェン膜の仕事関数の変化量に相当する物理量を検出する工程を有することを特徴とするガスセンサの使用方法。
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JP2015131229 | 2015-06-30 | ||
JP2015131229 | 2015-06-30 | ||
PCT/JP2016/069267 WO2017002854A1 (ja) | 2015-06-30 | 2016-06-29 | ガスセンサ及びその使用方法 |
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JPWO2017002854A1 true JPWO2017002854A1 (ja) | 2018-04-19 |
JP6687862B2 JP6687862B2 (ja) | 2020-04-28 |
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US (1) | US11156576B2 (ja) |
JP (1) | JP6687862B2 (ja) |
CN (1) | CN107709979B (ja) |
WO (1) | WO2017002854A1 (ja) |
Cited By (1)
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JP2019168276A (ja) * | 2018-03-22 | 2019-10-03 | 株式会社東芝 | 分子検出素子及び分子検出装置 |
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TWI610078B (zh) * | 2016-11-15 | 2018-01-01 | 國立中山大學 | 氣體檢測模組及其氣體感測器 |
JP6955145B2 (ja) * | 2017-07-12 | 2021-10-27 | 富士通株式会社 | トランジスタ及びその製造方法 |
JP6985596B2 (ja) * | 2017-11-30 | 2021-12-22 | 富士通株式会社 | 電子デバイス、電子デバイスの製造方法及び電子機器 |
CN112105922A (zh) * | 2018-01-04 | 2020-12-18 | 利腾股份有限公司 | 谐振气体传感器 |
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CN109448798B (zh) * | 2018-11-30 | 2021-09-03 | 湘潭大学 | 一种分子动力学模拟二元掺杂离子液体润滑薄膜结构特性的方法 |
TWI695168B (zh) * | 2019-05-22 | 2020-06-01 | 長庚大學 | 氣體感測裝置及其製作方法 |
JP7215347B2 (ja) * | 2019-06-14 | 2023-01-31 | 富士通株式会社 | ガスセンサ、及びガスセンサの製造方法 |
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WO2021040050A1 (ja) * | 2019-08-30 | 2021-03-04 | 太陽誘電株式会社 | ガス判定装置、ガス判定方法及びガス判定システム |
CN110514698B (zh) * | 2019-09-27 | 2022-09-30 | 福州京东方光电科技有限公司 | 一种气体感测装置和气体检测设备 |
EP3819260A1 (en) * | 2019-11-07 | 2021-05-12 | Infineon Technologies AG | A composite material, a chemoresistive gas sensor, a chemoresistive gas sensor system and a method for making and using same |
US20230022231A1 (en) * | 2019-12-30 | 2023-01-26 | The Regents Of The University Of California | Multi-gas detection with cs-fet arrays for food quality assessment |
CN112505108B (zh) * | 2020-12-18 | 2021-07-06 | 联合微电子中心有限责任公司 | 气体检测系统和方法 |
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CN107709979A (zh) | 2018-02-16 |
JP6687862B2 (ja) | 2020-04-28 |
WO2017002854A1 (ja) | 2017-01-05 |
CN107709979B (zh) | 2020-07-07 |
US11156576B2 (en) | 2021-10-26 |
US20180136157A1 (en) | 2018-05-17 |
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