CN101299020A - Optical gas sensor based on single polymer nano-wire - Google Patents
Optical gas sensor based on single polymer nano-wire Download PDFInfo
- Publication number
- CN101299020A CN101299020A CNA2008100624194A CN200810062419A CN101299020A CN 101299020 A CN101299020 A CN 101299020A CN A2008100624194 A CNA2008100624194 A CN A2008100624194A CN 200810062419 A CN200810062419 A CN 200810062419A CN 101299020 A CN101299020 A CN 101299020A
- Authority
- CN
- China
- Prior art keywords
- wire
- single polymer
- gas sensor
- nano
- polymer nano
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002070 nanowire Substances 0.000 title claims abstract description 44
- 230000003287 optical effect Effects 0.000 title claims abstract description 30
- 229920000642 polymer Polymers 0.000 title claims abstract description 26
- 239000002121 nanofiber Substances 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 17
- 230000004044 response Effects 0.000 abstract description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 7
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 abstract description 4
- 239000013307 optical fiber Substances 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 7
- 240000007762 Ficus drupacea Species 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000012681 fiber drawing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- ZPLCXHWYPWVJDL-UHFFFAOYSA-N 4-[(4-hydroxyphenyl)methyl]-1,3-oxazolidin-2-one Chemical compound C1=CC(O)=CC=C1CC1NC(=O)OC1 ZPLCXHWYPWVJDL-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 229920000767 polyaniline Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention discloses an optical gas sensor based on single polymer nano wire. One cone drawing micro-nano optical fiber is used for inputting the light to one end of the single polymer nano wire through the coupling area of evancent wave. The other cone drawing micro-nano optical fiber is used for outputting the light that is conducted by the single polymer nano wire through the coupling area of evancent wave at the other end of the single polymer nano wire to form the optical gas sensor which transmits the variation of optical signal. The optical gas sensor has the advantages of miniaturization, simple structure, high response speed, high sensitivity and low price. Currently the ammonia gas and nitrogen dioxide which has relative moisture from 5% to 95% and are ppm magnitude can be detected. The response speed of the optical gas sensor is faster than that of the traditional film sensor for 1-2 magnitude order.
Description
Technical field
The present invention relates to sensor, especially a kind of optical gas sensor based on single polymer nano-wire.
Background technology
The single polymer nano-wire optical gas sensor is a kind of novel sensor, is widely used aspect a lot of in scientific research, industry, environment, medical treatment, military affairs and food, health etc., and has wide application potential and development prospect.
Along with the improvement of optical fiber preparation technology, low-loss micro-nano fiber is produced out, and has been applied to make micro-nano photonics device, and wherein fine ring resonator of low-light and full optical fiber add-drop wave filter are proved to be.Realized in the world at present based on the gas sensing of single nano-wire mainly be based on electricity mechanism, as single semiconductor nanowires and single polymer nano-wire electricity gas sensor.
Summary of the invention
The object of the present invention is to provide a kind of optical gas sensor based on single polymer nano-wire.
The technical scheme that the present invention solves its technical matters employing is:
With an end that draws the awl micro-nano fiber light to be input to single polymer nano-wire by the evanescent wave coupled zone, draw the awl micro-nano fiber also to pass through the evanescent wave coupled zone light output, with the optical gas sensor of formation transmitting optical signal variation with another root through the single polymer nano-wire conduction at the other end of single polymer nano-wire.
Described two are drawn the tip diameter of awl micro-nano fiber to be 0.1-2 μ m.
Described high molecular nanometer linear diameter is 50-1000nm, and sensing length is 10-500 μ m.
The beneficial effect that the present invention has is:
Single polymer nano-wire sensor of the present invention is a kind of optical sensor, has miniaturization, and simple in structure, response speed is fast, highly sensitive and cheap characteristics.Can detect the relative humidity of 5%-95% at present, the ammonia of ppm magnitude and nitrogen dioxide, response speed is than fast 1～2 order of magnitude of conventional films sensor
Description of drawings
Fig. 1 is a structural principle synoptic diagram of the present invention.
Fig. 2 is polyacrylamide nano line round-robin response diagram between relative humidity 75-88 of 410nm diameter; The detection optical wavelength is 532nm.
Fig. 3 is that the polyaniline/polystyrene nano wire of camphorsulfonic acidization of 250nm diameter is to the nitrogen dioxide response diagram of concentration 0.1-4ppm; The detection optical wavelength is 532nm.
Fig. 4 is the ammonia response diagram of the polymethyl methacrylate nano wire that mixes of the Bromothymol blue of 270nm diameter to concentration 3-28ppm; The detection optical wavelength is 660nm.
Among the figure: 1, draw the micro-nano fiber of awl, 2, the coupled zone, 3, the coupled zone, 4, single polymer nano-wire, 5, draw the micro-nano fiber of awl.
Embodiment
As shown in Figure 1, the present invention draws with one and bores the end that micro-nano fiber 1 is input to light by evanescent wave coupled zone 2 single polymer nano-wire 4, draw awl micro-nano fiber 5 also to pass through 3 the light outputs in evanescent wave coupled zone with another root, with the optical gas sensor of formation transmitting optical signal variation through single polymer nano-wire 4 conduction at the other end of single polymer nano-wire 4.
Described two are drawn the tip diameter of awl micro-nano fiber to be 0.1-2 μ m.
Described high molecular nanometer linear diameter is 50-1000nm, and sensing length is 10-500 μ m.
Preparation process of the present invention is as follows:
(1) at first from the polymer nano-wire of the stretched various functions in Polymer Solution the inside, nano wire is cut off and microoperation such as transfer at microscopically then, nano wire is placed on the substrate that needs, and nano wire is placed to the shape that needs by microoperation;
(2) put into the receptacle of a good airproof performance being placed on nano wire on the substrate then.Receptacle has the environmental change of thermohygrometer in can detection receptacle.Container has the mouth of supplied gas turnover.For ease of evanescent wave coupling, can guarantee to draw the fine coupling of the low-light nano wire of awl can make seal of vessel again at the device of container limit particular design;
(3) with drawing by high temperature farad system general single mode fiber, prepare the low-light fibre of tip diameter at 0.1-2 μ m
(4) two tapered fiber probes are deep into airtight container the inside, at optical microscope lower-pilot low-light fibre, by the evanescent wave coupled zone the light input and output.
(5) one of design cover gas control system can guarantee various gas to be analyzed turnover airtight containers, and the contact nanometer line.The light signal of nano wire output has photo-detector to monitor in real time.
Applicating example:
Use general single mode fiber drawing by high temperature method prepares the low-light fibre of the about 100nm of end full to the brim, pulls out the nano wire of 410nm diameter from the aqueous solution the inside of polyacrylamide.Under optical microscope, prepare the sensor that length is 200 μ m.Fig. 1 is a structural principle synoptic diagram of the present invention; Fig. 2 is this nano wire round-robin response diagram between relative humidity 75%-88%.About 30ms of response time.The detection optical wavelength is 532nm.
Use general single mode fiber drawing by high temperature method to prepare the low-light fibre of the about 500nm of end full to the brim, pull out the nano wire of 250nm diameter inside the chloroformic solution of the polyaniline/polystyrene of camphorsulfonic acidization.Under optical microscope, prepare the sensor that length is 500 μ m.Fig. 3 is the nitrogen dioxide response diagram of this nano wire to concentration 0.1-4ppm.About 7s of response time.The detection optical wavelength is 532nm.
Use general single mode fiber drawing by high temperature method to prepare the low-light fibre of the about 1500nm of end full to the brim, pull out the nano wire of 900nm diameter inside the acetone soln of the polymethyl methacrylate that mixes from Bromothymol blue.Under optical microscope, prepare the sensor that length is 25 μ m.Fig. 4 is the ammonia response diagram of this nano wire to concentration 3-28ppm.The detection optical wavelength is 660nm.
When gas contact nanometer line to be detected, can penetrate into the nano wire the inside and and the indicator of macromolecule or the inside react, cause the refractive index of nano wire and the variation of absorption band, and then influence is by the light intensity variation of nano wire.So just can detect gas to be detected by detecting output intensity.
Above-mentioned embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (3)
1, a kind of optical gas sensor based on single polymer nano-wire, it is characterized in that: with an end that draws the awl micro-nano fiber light to be input to single polymer nano-wire by the evanescent wave coupled zone, draw the awl micro-nano fiber also to pass through the evanescent wave coupled zone light output, with the optical gas sensor of formation transmitting optical signal variation with another root through the single polymer nano-wire conduction at the other end of single polymer nano-wire.
2, a kind of optical gas sensor based on single polymer nano-wire according to claim 1 is characterized in that: described two are drawn the tip diameter of awl micro-nano fiber to be 0.1-2 μ m.
3, a kind of optical gas sensor according to claim 1 based on single polymer nano-wire, it is characterized in that: described high molecular nanometer linear diameter is 50-1000nm, sensing length is 10-500 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100624194A CN101299020B (en) | 2008-06-16 | 2008-06-16 | Optical gas sensor based on single polymer nano-wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100624194A CN101299020B (en) | 2008-06-16 | 2008-06-16 | Optical gas sensor based on single polymer nano-wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101299020A true CN101299020A (en) | 2008-11-05 |
| CN101299020B CN101299020B (en) | 2010-06-09 |
Family
ID=40078912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100624194A Expired - Fee Related CN101299020B (en) | 2008-06-16 | 2008-06-16 | Optical gas sensor based on single polymer nano-wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101299020B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880024A (en) * | 2010-05-25 | 2010-11-10 | 中国科学院物理研究所 | Preparation method of novel probe based on gold-silver nano-wire optical waveguide |
| CN101902013A (en) * | 2010-07-13 | 2010-12-01 | 浙江大学 | Semiconductor nanoribbon-based annular cavity laser |
| CN101957308A (en) * | 2010-09-08 | 2011-01-26 | 华中科技大学 | Micro-nano optical fiber evanescent field illuminator |
| CN101718693B (en) * | 2009-12-04 | 2011-06-22 | 天津理工大学 | Nitrogen dioxide gas concentration measuring instrument of optical fiber with mismatched fiber core |
| CN102141513A (en) * | 2010-12-30 | 2011-08-03 | 华中科技大学 | Refractive index sensor of micro-nano optical fiber |
| CN102141512A (en) * | 2010-12-30 | 2011-08-03 | 华中科技大学 | Refractive index sensor of micro/nano optical fiber |
| CN102374972A (en) * | 2011-10-13 | 2012-03-14 | 浙江大学 | Humidity sensor for single quantum-dot doped polymer nanowire and preparation method thereof |
| CN103308488A (en) * | 2013-05-24 | 2013-09-18 | 上海理工大学 | Monocrystal palladium nanowire surface plasma hydrogen sensor and preparation method and application thereof |
| CN103308474A (en) * | 2013-05-29 | 2013-09-18 | 燕山大学 | Method for detecting petroleum pollutants in water by employing optical-fiber evanescent wave probe unit |
| CN103323439A (en) * | 2013-06-09 | 2013-09-25 | 华侨大学 | Micro-fluidic chip fluorescence excitation device, micro-fluidic chip and preparation method thereof |
| CN103954590A (en) * | 2014-04-30 | 2014-07-30 | 电子科技大学 | Micro optical fiber gas sensor covered by adopting graphene |
| CN105973842A (en) * | 2016-05-19 | 2016-09-28 | 天津理工大学 | Ammonia gas sensor of titanium oxide/bromocresol purple composite thin film modified micro-nano optical fiber grating |
| CN107356641A (en) * | 2017-07-18 | 2017-11-17 | 中国工程物理研究院材料研究所 | Micro-nano fiber hydrogen sensor and detecting system |
| CN113109271A (en) * | 2021-04-08 | 2021-07-13 | 中山大学 | Preparation and application of biosensor based on polylactic acid nanowires |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432655C (en) * | 2005-12-31 | 2008-11-12 | 浙江大学 | Gas concentration detection method and equipment based on optical fiber laser intracavity sensitivity |
| CN201222030Y (en) * | 2008-06-16 | 2009-04-15 | 浙江大学 | Optical gas sensors based on single high molecule nanometer line |
-
2008
- 2008-06-16 CN CN2008100624194A patent/CN101299020B/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718693B (en) * | 2009-12-04 | 2011-06-22 | 天津理工大学 | Nitrogen dioxide gas concentration measuring instrument of optical fiber with mismatched fiber core |
| CN101880024A (en) * | 2010-05-25 | 2010-11-10 | 中国科学院物理研究所 | Preparation method of novel probe based on gold-silver nano-wire optical waveguide |
| CN101880024B (en) * | 2010-05-25 | 2013-04-17 | 中国科学院物理研究所 | Preparation method of novel probe based on gold-silver nano-wire optical waveguide |
| CN101902013A (en) * | 2010-07-13 | 2010-12-01 | 浙江大学 | Semiconductor nanoribbon-based annular cavity laser |
| CN101902013B (en) * | 2010-07-13 | 2012-11-14 | 浙江大学 | Semiconductor nanoribbon-based annular cavity laser |
| CN101957308B (en) * | 2010-09-08 | 2012-09-05 | 华中科技大学 | Micro-nano optical fiber evanescent field illuminator |
| CN101957308A (en) * | 2010-09-08 | 2011-01-26 | 华中科技大学 | Micro-nano optical fiber evanescent field illuminator |
| CN102141513A (en) * | 2010-12-30 | 2011-08-03 | 华中科技大学 | Refractive index sensor of micro-nano optical fiber |
| CN102141512A (en) * | 2010-12-30 | 2011-08-03 | 华中科技大学 | Refractive index sensor of micro/nano optical fiber |
| CN102374972A (en) * | 2011-10-13 | 2012-03-14 | 浙江大学 | Humidity sensor for single quantum-dot doped polymer nanowire and preparation method thereof |
| CN103308488A (en) * | 2013-05-24 | 2013-09-18 | 上海理工大学 | Monocrystal palladium nanowire surface plasma hydrogen sensor and preparation method and application thereof |
| CN103308488B (en) * | 2013-05-24 | 2015-07-15 | 上海理工大学 | Monocrystal palladium nanowire surface plasma hydrogen sensor and preparation method and application thereof |
| CN103308474A (en) * | 2013-05-29 | 2013-09-18 | 燕山大学 | Method for detecting petroleum pollutants in water by employing optical-fiber evanescent wave probe unit |
| CN103323439A (en) * | 2013-06-09 | 2013-09-25 | 华侨大学 | Micro-fluidic chip fluorescence excitation device, micro-fluidic chip and preparation method thereof |
| CN103323439B (en) * | 2013-06-09 | 2016-03-30 | 华侨大学 | A kind of micro-fluidic chip fluorescence excitation device, micro-fluidic chip and preparation method thereof |
| CN103954590A (en) * | 2014-04-30 | 2014-07-30 | 电子科技大学 | Micro optical fiber gas sensor covered by adopting graphene |
| CN105973842A (en) * | 2016-05-19 | 2016-09-28 | 天津理工大学 | Ammonia gas sensor of titanium oxide/bromocresol purple composite thin film modified micro-nano optical fiber grating |
| CN107356641A (en) * | 2017-07-18 | 2017-11-17 | 中国工程物理研究院材料研究所 | Micro-nano fiber hydrogen sensor and detecting system |
| CN113109271A (en) * | 2021-04-08 | 2021-07-13 | 中山大学 | Preparation and application of biosensor based on polylactic acid nanowires |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101299020B (en) | 2010-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101299020B (en) | Optical gas sensor based on single polymer nano-wire | |
| CN201222030Y (en) | Optical gas sensors based on single high molecule nanometer line | |
| Pathak et al. | Broad range and highly sensitive optical pH sensor based on Hierarchical ZnO microflowers over tapered silica fiber | |
| CN101666750B (en) | Surface-enhanced raman scattering sensor detector based on optical fiber fuse-tapered coupler | |
| CN102680452A (en) | Dual-detection biochemical sensing detector integrated with optofluidics | |
| CN104483498A (en) | Sensing chip and preparation method thereof | |
| CN109116272B (en) | Large-bandwidth magnetic field sensor based on tapered fiber bragg grating and preparation method | |
| CN103822666A (en) | Multi-parameter sensor based on long-period fiber bragg grating and Mach-Zehnder interferometer | |
| CN103308488B (en) | Monocrystal palladium nanowire surface plasma hydrogen sensor and preparation method and application thereof | |
| Li et al. | Selective and sensitive Escherichia coli detection based on a T4 bacteriophage‐immobilized multimode microfiber | |
| CN101126714A (en) | Optical fiber biosensor application method | |
| CN108645511A (en) | A kind of new ultra-violet light intensity detector of Mach-Zehnder interferometers structure | |
| CN102374972A (en) | Humidity sensor for single quantum-dot doped polymer nanowire and preparation method thereof | |
| CN201060167Y (en) | Microstructure optical fiber sensing probe | |
| Girei et al. | Tapered multimode fiber sensor for ethanol sensing application | |
| CN107643273B (en) | Aggregation-induced emission biosensor based on hollow photonic crystal fiber | |
| Johari et al. | Formaldehyde sensing using tapered U-shape plastic optical fiber coated with zinc oxide nanorods | |
| Painam et al. | Active layer identification of photonic crystal waveguide biosensor chip for the detection of Escherichia coli | |
| Li et al. | Investigation on high sensitivity RI sensor based on PMF | |
| CN104535540A (en) | Single crystal palladium nano short rod surface plasma hydrogen sensor based on whispering gallery mode and preparation method and application thereof | |
| CN1558209A (en) | Coupled type monomode fiber fadeout wave sensor | |
| CN102735368A (en) | Tapered optical fiber temperature sensor and sensing probe manufacture method thereof | |
| Li et al. | High sensitive and selective Escherichia coli detection using immobilized optical fiber microprobe | |
| CN204575538U (en) | A kind of laser-induced fluorescence (LIF) food detector | |
| CN209542438U (en) | Micro-nano fiber grating nitric oxide gas detection system with temperature-compensating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20170616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |