CN108896201A - A kind of high-resolution organism thermometry of high sensitivity - Google Patents
A kind of high-resolution organism thermometry of high sensitivity Download PDFInfo
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Abstract
The invention proposes a kind of new thermometric strategies, excite NaGdF simultaneously using double beams laser (980nm and 1530nm)4:20%Yb3+, 2%Er3+Up-conversion nanoparticles, using the synergistic effect of dual wavelength by Er3+Green light energy level (H11/2、4S3/2) and red emission energy level (4F9/2) set up temperature-sensitive connection relationship.Using the strategy, high absolute sensitivity and high relative sensitivity and excellent signal screening degree are obtained simultaneously in temperature range (303K-373K).The monitoring emission peak spacing of this up-conversion fluorescence nano temperature probe material is larger, reaches 112nm, signal screening degree is high, and its absolute temperature sensitivity 0.382K‑1, highest relative temperature sensitivity is 1.286%K‑1.Double beams laser is excited there are synergistic effect simultaneously, can greatly improve photon utilization rate, is enhanced Up-conversion emission intensity, is more convenient for detecting.
Description
Technical field
The present invention relates to rear-earth-doped up-conversion luminescent material and temperature detection technique fields.
Technical background
Temperature is most basic one of the physical parameter of science and technology field.Accurate temperature detection in real time is to realize fine mistake
The key of process control.Especially biological intracorporal many physiological activities, such as metabolism, cell division, polymerase chain reaction
Deng all with temperature change, therefore realize that high-resolution in organism, highly sensitive temperature detection are extremely important.
Fluorescence thermometry is because of the cell that its is non-contact, quick response and the advantages that high-resolution are considered as most prospect
Interior temperature detection strategy, which depends on optical parameter variation with temperature, such as luminous intensity, luminescent lifetime, luminous peak position
It sets, the change of shine peak shape and luminous peak width.Wherein, most widely used is fluorescence intensity ratio thermometry (FIR), should
Thermometry is based on two differentiable transmitting bands to the different responses of temperature and not by spectral losses, external disturbance and excitation function
The influence of rate fluctuation.Fluorescence intensity ratio technology thermometric utilizes the thermal coupling energy level pair of lanthanide ion (Er, Tm, Ho, Nd etc.) more
(TCL), temperature changes, and electronics distribution, which reaches, between the high emission energy level and low emission level of thermal coupling energy level pair meets Boltzmann
The different thermal equilibrium states of population.
However, traditional fluorescence intensity ratio thermometric strategy based on thermal coupling energy level pair not can be implemented simultaneously it is high absolutely sensitive
Spend (Sa) and high relative sensitivity (Sr).Thermal coupling energy level difference Δ E is most important for thermometric performance, compared with highly excited level thermal coupling
Electron population on energy level is inversely proportional with Δ E, lesser Δ E value be advantageously implemented it is stronger it is thermal coupling can, obtain high exhausted
To temperature sensitivity Sa.However, lesser Δ E value will will lead to lower relative temperature sensitivity Sr(Sr=Δ E/kT2), together
When monitored emission peak is partly overlapped, cause difference signal screening degree.Er3+With ladder energy level abundant, in fluorescence temperature
Degree probe application in study the most extensively, but its thermal coupling energy level to (2H11/2With4S3/2) energy level difference only have 700cm-1, therefore
Though such probe absolute sensitivity with higher, relative sensitivity it is lower and because spectra overlapping cause signal screening degree compared with
Difference, this is the inherent shortcoming based on thermal coupling energy level to fluorescence intensity ratio thermometry.Building is not constrained by ANALOGY OF BOLTZMANN DISTRIBUTION
Thermal coupling approach will be the effective way for overcoming this kind of defect.(Sensors and in work before us
Actuators B 256 (2018) 498-503) report a kind of novel up-conversion fluorescence nano temperature probe material KMnF3:
19%Yb, 1%Er utilize Mn2+Ion4T1Energy level constructs energy transfer paths, by Er3+Ion script electronic state is independent green
Light emitting energy level2H11/2With4S3/2With red emission energy level4F9/2It is coupled.This energy transfer process belongs to exchange and makees
With to lattice dilatation or distance change caused by shrinking is very sensitive.It has been obtained simultaneously using this tactful thermometric higher exhausted
To sensitivity (0.113K-1) and higher relative sensitivity (5.7%K-1), but inevitably there is energy in energy transfer process
Amount loss, this will affect up-conversion luminescence efficiency.
The invention proposes a kind of new thermometric strategies, are excited simultaneously using double beams laser (980nm and 1530nm)
NaGdF4:20%Yb3+, 2%Er3+Up-conversion nanoparticles, using the synergistic effect of double beams laser by Er3+Green light energy level
(H11/2、4S3/2) and red emission energy level (4F9/2) set up temperature-sensitive connection relationship.Using the strategy, in Physiological temperatures range
High absolute sensitivity and high relative sensitivity and excellent signal screening degree are obtained simultaneously in (303K-343K), Tong Shi ﹒ photon
Effective use can greatly improve UC emissive porwer, to improve the resolution ratio of temperature detection.
Summary of the invention
The present invention proposes a kind of new highly sensitive thermometry.Purpose is in Physiological temperatures range while to obtain higher
Absolute sensitivity and higher relative sensitivity, while improving signal screening degree.The present invention also provides the realities of above-mentioned thermometry
Existing method.
Synthesize NaGdF4:Yb3+,Er3+Upper conversion nano is brilliant：A certain amount of GdCl3·6H2O, YbCl3·6H2O and
ErCl3·6H2O is added in 100 milliliters of three-necked bottles, and 8 milliliters of oleic acid and 12 milliliters of octadecylenes are added, and stirring is uniformly mixed it.
Mixture in three-necked bottle is heated to 150 degrees Celsius under nitrogen stream protection by lasting stirring, and heat preservation makes rare-earth salts whole for 30 minutes
Dissolution forms clear solution, then cools to room temperature.Weigh 3 mMs of NH4F and 1 mM of NaOH is dissolved in 5 ml methanols, will
Gained methanol solution is added dropwise in three-necked bottle, stirs 20 minutes, is heated to 80 degrees Celsius of heat preservations 30 minutes to remove in system
Methanol.After methanol emptying, reaction system is heated to 150 degrees Celsius of heat preservations ten minutes with the moisture in cleared system, it
Afterwards under nitrogen stream protection, system is warming up to 280 degrees Celsius, stirs and keeps the temperature 90 minutes.Then natually cooled to room temperature.
15mL ethyl alcohol is added into acquired solution, so that nanocrystalline precipitation, centrifuge separation, are repeatedly washed with hexamethylene and ethyl alcohol, obtained
Monodisperse, partial size are the NaGdF of 18nm or so4:Yb3+,Er3+Hexagonal phase is nanocrystalline.
Thermometry implementation method of the present invention：External laser selects wavelength 980nm and 1530nm as excitation light source
Two beam laser coupleds are transferred at sample to same optical path by optical fiber by dichronic mirror, then pass through convex lens by near infrared light
The coaxial double beams laser of coupling is focused, NaGdF is irradiated4:Yb3+,Er3+Upper conversion nano is brilliant, shows Er3+Two of ion
Main up-conversion fluorescence transmitting band, main peak are located at 523nm, the green emissive band of 542nm and the red emission band of 654nm.
The fluorescence intensity ratio at the two peaks changes obviously in absolute temperature 303K to 373K temperature range, and ratio is exponentially closed with temperature
System, the maximum absolute temperature sensitivity 0.0382K being calculated-1, highest relative temperature sensitivity is 1.296%K-1.In physiology
In temperature range 303K to 343K temperature range, highest relative sensitivity is constant, and highest absolute sensitivity still has 0.365K-1。
The fluorescence intensity ratio for measuring two peaks can calibrate the temperature of material local environment.
Using this tactful thermometric, the emission peak spacing of monitoring reaches 112nm, and signal screening degree is high.Luminescent color is by yellowish green
Discoloration be it is orange, convenient for observation.Up-conversion used is in nano-grade size and shape is uniformly dispersed good, therefore, this
Novel high-resolution, the temperature measurement strategies of high accuracy have great application prospect in biological detection.
Detailed description of the invention
Fig. 1:(a)NaGdF4:20%Yb3+, 2%Er3+Nanocrystalline X-ray diffractogram；(b) nanocrystalline low range transmission electricity
Mirror figure；(c) single nanocrystalline high-resolution-ration transmission electric-lens figure.
Fig. 2：NaGdF4:20%Yb3+, 2%Er3+It is nanocrystalline respectively 980nm, 1530nm independent excitation and 980nm with
Up-conversion luminescence spectrum under 1530nm excitation simultaneously.
Fig. 3：NaGdF4:20%Yb3+, 2%Er3+The Up-conversion emission spectrum of nanocrystalline temperature-independent, temperature change from
303K to 373K, 980nm and 1530nm two-beam are excited while being excited.
Fig. 4：Er3+Ion (2H11/2,4S3/2)→4I15/2With4F9/2→4I15/2Transition emissive porwer varies with temperature column
Figure.
Fig. 5：Different temperatures fluorescence intensity ratio measured value and exponential fitting curve graph.
Fig. 6：Different temperatures absolute sensitivity and relative sensitivity and matched curve.
Specific embodiment
Example 1：Fluorine gadolinium natrium nanocrystalline used, i.e. 0.78 mM of GdCl are prepared by above-mentioned nanometer crystal preparation method3·
6H2O, 0.2 mM of YbCl3·6H2O and 0.02 mM of ErCl3·6H2O is added in 100 milliliters of three-necked bottles, is added 8 milliliters
Oleic acid and 12 milliliters of octadecylenes, stirring are uniformly mixed it.Lasting stirring adds mixture in three-necked bottle under nitrogen stream protection
Heat is to 150 degrees Celsius, and heat preservation makes rare-earth salts for 30 minutes, and all dissolution forms clear solution, then cools to room temperature.Weigh 3 mmoles
You are NH4F and 1 mM of NaOH is dissolved in 5 ml methanols, and gained methanol solution is added dropwise in three-necked bottle, stirs 20 minutes, adds
Heat keeps the temperature 30 minutes to 80 degrees Celsius to remove the methanol in system.After methanol emptying, it is Celsius that reaction system is heated to 150
With the moisture in cleared system, later under nitrogen stream protection, system is warming up to 280 degrees Celsius, stirring within degree heat preservation ten minutes
And keep the temperature 90 minutes.Then natually cooled to room temperature.15mL ethyl alcohol is added into acquired solution, so that nanocrystalline precipitation, from
Heart separation, is repeatedly washed with hexamethylene and ethyl alcohol, obtains monodisperse, and partial size is the NaGdF of 18nm or so4:20%Yb3+, 2%
Er3+Hexagonal phase is nanocrystalline.
It is 980nm and 1530nm near infrared light NaGdF with wavelength4:20%Yb3+, 2%Er3+It is nanocrystalline, power difference
It is fixed on 8W/cm2And 29W/cm2；With its main peak of spectrometer measurement in 523nm, 542nm green emissive band and 654nm red emission
The emissive porwer of band；Calculate intensity ratio scale；Then it is compared in the figure that Fig. 5 is given, so that it may calibrate material local environment
Temperature.
Example 2：Weigh 0.78 mM of GdCl3·6H2O, 0.2 mM of YbCl3·6H2O and 0.02 mM of ErCl3·
6H2O is added in 100 milliliters of three-necked bottles, and 8 milliliters of oleic acid and 12 milliliters of octadecylenes are added, and stirring is uniformly mixed it.Persistently stir
It mixes, mixture in three-necked bottle is heated to 150 degrees Celsius under nitrogen stream protection, heat preservation makes rare-earth salts all dissolution shapes for 30 minutes
At clear solution, then cool to room temperature.Weigh 3 mMs of NH4F and 1 mM of NaOH is dissolved in 5 ml methanols, by gained first
Alcoholic solution is added dropwise in three-necked bottle, stirs 20 minutes, is heated to 80 degrees Celsius of heat preservations 30 minutes to remove the methanol in system.
After methanol emptying, reaction system is heated to 150 degrees Celsius of heat preservations ten minutes with the moisture in cleared system, later in nitrogen
Under stream protection, system is warming up to 280 degrees Celsius, stirs and keeps the temperature 90 minutes.Then natually cooled to room temperature.It is molten to gained
15mL ethyl alcohol is added in liquid, so that nanocrystalline precipitation, centrifuge separation, are repeatedly washed with hexamethylene and ethyl alcohol, obtain monodisperse, grain
Diameter is the NaGdF of 18nm or so4:20%Yb3+, 2%Er3+Hexagonal phase is nanocrystalline.
It is 980nm and 1530nm near infrared light NaGdF with wavelength4:20%Yb3+, 2%Er3+It is nanocrystalline, power difference
It is fixed on 4W/cm2And 25W/cm2；With its main peak of spectrometer measurement in 523nm, 542nm green emissive band and 654nm red emission
The emissive porwer of band；Intensity ratio scale is calculated, the temperature of material local environment can be calibrated.
Example 3：Same method prepares NaGdF4:Nd3+,Yb3+,Er3+It is nanocrystalline, with wavelength 808nm and 980nm near-infrared
Nanocrystalline prepared by light irradiation, two beam laser powers are separately fixed at 12W/cm2And 8W/cm2；With its main peak of spectrometer measurement
In 523nm, the emissive porwer of 542nm green emissive band and 654nm red emission band；Intensity ratio scale is calculated, material can be calibrated
Expect the temperature of local environment.
Example 4：Same method prepares NaGdF4:Nd3+,Yb3+,Er3+It is nanocrystalline, with wavelength 808nm and 1530nm near-infrared
Nanocrystalline prepared by light irradiation, two beam laser powers are separately fixed at 12W/cm2And 29W/cm2；With its main peak of spectrometer measurement
In 523nm, the emissive porwer of 542nm green emissive band and 654nm red emission band；Intensity ratio scale is calculated, material can be calibrated
Expect the temperature of local environment.
Example:5：Prepare NaYF4:Er3+Glass ceramics, be 980nm and 1530nm near infrared light with wavelength prepared by
Glass ceramics, two beam laser powers are separately fixed at 8W/cm2And 29W/cm2；With its main peak of spectrometer measurement in 523nm,
The emissive porwer of 542nm green emissive band and 654nm red emission band；Calculate intensity ratio scale；Calibrate material local environment
Temperature.
Claims (4)
1. a kind of high sensitivity thermometry：It is characterized in that using the laser of two beam different wave lengths (such as：980nm and 1530nm) it is same
When irradiate rear-earth-doped (such as Er3+) up-conversion carries out thermometric, different capacity is adjusted in every Shu Jiguang.
2. temp measuring method as described in claim 1：Select wavelength for 980nm and 1530nm laser, by dichronic mirror by two beams
Laser coupled is transferred at sample to same optical path by optical fiber, then is focused the coaxial double beams laser of coupling by convex lens,
Irradiate NaGdF4:Yb3+,Er3+Upper conversion nano is brilliant；Luminous signal is collected by intelligent acess spectrometer, calculates red and green luminous band
Intensity ratio scale, so that it may calibrate the temperature of material local environment.
3. temp measuring method as described in claim 1, operation material can be the crystalline substance of the upper conversion nano containing rare earth ion or containing dilute
The upper conversion block materials of native ion are (such as：Any one of glass, crystal, glass ceramics, ceramics).
4. a kind of thermometry described in claim 1, purposes is constructed using the upconverting fluorescent material of dual wavelength excitation
Temperature-sensitivprobe probe.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109912224A (en) * | 2019-01-26 | 2019-06-21 | 桂林电子科技大学 | Fluor-apatite nano-glass ceramic material and preparation method for optics thermometric |
| CN110330971A (en) * | 2019-07-17 | 2019-10-15 | 重庆理工大学 | A kind of upper conversion temperature-measurement material of high sensitivity and its preparation method and application |
| CN110849500A (en) * | 2019-11-22 | 2020-02-28 | 大连民族大学 | Temperature detection method for up-conversion luminescence intensity ratio based on rare earth Er ion four-energy-level system |
| CN113125039A (en) * | 2021-04-25 | 2021-07-16 | 哈尔滨古宝科技有限公司 | Method for testing internal temperature of battery based on up-conversion fluorescent nano material |
| CN113930235A (en) * | 2021-11-11 | 2022-01-14 | 上海科技大学 | Multi-response nano temperature detection probe, preparation method and application |
| CN114525132A (en) * | 2022-01-12 | 2022-05-24 | 河池学院 | Fluorescent powder for low-temperature measurement and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005005407A (en) * | 2003-06-10 | 2005-01-06 | Nikon Corp | Light source device, aligner, and control method thereof |
| CN102109380A (en) * | 2009-12-24 | 2011-06-29 | 中国科学院福建物质结构研究所 | Open type low-temperature high-resolution ratio laser spectrum test system |
| CN104316214A (en) * | 2014-09-22 | 2015-01-28 | 西北大学 | Application of ALn(MoO4)2 up-conversion luminescent material doped with Er3+ and Yb3+ in optical temperature sensor |
| CN106921109A (en) * | 2017-04-18 | 2017-07-04 | 华南理工大学 | A kind of white light modulator approach and system |
| CN107699226A (en) * | 2017-09-12 | 2018-02-16 | 中国科学院福建物质结构研究所 | Conversion nano temperature probe and preparation method thereof in a kind of hypersensitivity |
-
2018
- 2018-05-15 CN CN201810461107.4A patent/CN108896201A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005005407A (en) * | 2003-06-10 | 2005-01-06 | Nikon Corp | Light source device, aligner, and control method thereof |
| CN102109380A (en) * | 2009-12-24 | 2011-06-29 | 中国科学院福建物质结构研究所 | Open type low-temperature high-resolution ratio laser spectrum test system |
| CN104316214A (en) * | 2014-09-22 | 2015-01-28 | 西北大学 | Application of ALn(MoO4)2 up-conversion luminescent material doped with Er3+ and Yb3+ in optical temperature sensor |
| CN106921109A (en) * | 2017-04-18 | 2017-07-04 | 华南理工大学 | A kind of white light modulator approach and system |
| CN107699226A (en) * | 2017-09-12 | 2018-02-16 | 中国科学院福建物质结构研究所 | Conversion nano temperature probe and preparation method thereof in a kind of hypersensitivity |
Non-Patent Citations (2)
| Title |
|---|
| 刘丰: "稀土掺杂NaYF4纳米晶体的上转换荧光特性及应用研究", 《中国优秀硕士学位论文全文数据库（电子期刊）工程科技Ⅰ辑》 * |
| 商晓颖: "飞秒光与连续光激发的掺Er3+纳米材料上转换机制与操控", 《中国博士学位论文全文数据库（电子期刊）工程科技Ⅰ辑》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109912224A (en) * | 2019-01-26 | 2019-06-21 | 桂林电子科技大学 | Fluor-apatite nano-glass ceramic material and preparation method for optics thermometric |
| CN109912224B (en) * | 2019-01-26 | 2021-09-21 | 桂林电子科技大学 | Fluorapatite nano glass ceramic material for optical temperature measurement and preparation method thereof |
| CN110330971A (en) * | 2019-07-17 | 2019-10-15 | 重庆理工大学 | A kind of upper conversion temperature-measurement material of high sensitivity and its preparation method and application |
| CN110330971B (en) * | 2019-07-17 | 2022-04-22 | 重庆理工大学 | High-sensitivity up-conversion temperature measurement material and preparation method and application thereof |
| CN110849500A (en) * | 2019-11-22 | 2020-02-28 | 大连民族大学 | Temperature detection method for up-conversion luminescence intensity ratio based on rare earth Er ion four-energy-level system |
| CN110849500B (en) * | 2019-11-22 | 2021-04-09 | 大连民族大学 | Temperature detection method for up-conversion luminescence intensity ratio based on rare earth Er ion four-energy-level system |
| CN113125039A (en) * | 2021-04-25 | 2021-07-16 | 哈尔滨古宝科技有限公司 | Method for testing internal temperature of battery based on up-conversion fluorescent nano material |
| CN113125039B (en) * | 2021-04-25 | 2023-10-31 | 哈尔滨古宝科技有限公司 | Method for testing internal temperature of battery based on up-conversion fluorescent nano material |
| CN113930235A (en) * | 2021-11-11 | 2022-01-14 | 上海科技大学 | Multi-response nano temperature detection probe, preparation method and application |
| CN113930235B (en) * | 2021-11-11 | 2023-12-29 | 上海科技大学 | Multi-response nano temperature detection probe, preparation method and application |
| CN114525132A (en) * | 2022-01-12 | 2022-05-24 | 河池学院 | Fluorescent powder for low-temperature measurement and preparation method and application thereof |
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Application publication date: 20181127 |