CN1104825A - 10.6 micron infrared sensing element for outputting orange red light - Google Patents
10.6 micron infrared sensing element for outputting orange red light Download PDFInfo
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- CN1104825A CN1104825A CN 94112051 CN94112051A CN1104825A CN 1104825 A CN1104825 A CN 1104825A CN 94112051 CN94112051 CN 94112051 CN 94112051 A CN94112051 A CN 94112051A CN 1104825 A CN1104825 A CN 1104825A
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- CN
- China
- Prior art keywords
- infrared sensing
- sensing element
- ceramic chip
- fluoride
- outputting
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- Granted
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000010304 firing Methods 0.000 claims abstract 2
- 238000001816 cooling Methods 0.000 claims description 5
- 229910052788 barium Inorganic materials 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 229910052712 strontium Inorganic materials 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 14
- 238000002156 mixing Methods 0.000 abstract description 6
- 229910052693 Europium Inorganic materials 0.000 abstract description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract description 4
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical group [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052691 Erbium Inorganic materials 0.000 abstract description 3
- 229910052689 Holmium Inorganic materials 0.000 abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 3
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical group [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 abstract description 3
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 abstract description 3
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 abstract description 3
- -1 rare earth ions Chemical class 0.000 abstract description 3
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract 1
- 150000003568 thioethers Chemical class 0.000 abstract 1
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 229910001940 europium oxide Inorganic materials 0.000 description 6
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 description 6
- ZEGFMFQPWDMMEP-UHFFFAOYSA-N strontium;sulfide Chemical compound [S-2].[Sr+2] ZEGFMFQPWDMMEP-UHFFFAOYSA-N 0.000 description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 5
- 238000000904 thermoluminescence Methods 0.000 description 5
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- VQCBHWLJZDBHOS-UHFFFAOYSA-N erbium(iii) oxide Chemical compound O=[Er]O[Er]=O VQCBHWLJZDBHOS-UHFFFAOYSA-N 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 4
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 4
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Chemical compound [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 241000972773 Aulopiformes Species 0.000 description 2
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 description 2
- 229910001632 barium fluoride Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- GEZAXHSNIQTPMM-UHFFFAOYSA-N dysprosium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Dy+3].[Dy+3] GEZAXHSNIQTPMM-UHFFFAOYSA-N 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 235000003270 potassium fluoride Nutrition 0.000 description 2
- 239000011698 potassium fluoride Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 235000019515 salmon Nutrition 0.000 description 2
- 235000013024 sodium fluoride Nutrition 0.000 description 2
- 239000011775 sodium fluoride Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 230000004298 light response Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 239000011540 sensing material Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Landscapes
- Luminescent Compositions (AREA)
Abstract
The invention relates to a 10.6 micron infrared sensing element for outputting orange red light. Is a thermoluminescent material. Mainly used for mixing CO2The laser outputs 10.6 μm of infrared light which is converted to orange-red visible light. It is composed of ceramic chip made by firing multi-component compound. The main chemical components of the ceramic chip compound are alkaline earth sulfides, wherein two rare earth ions are doped, one is europium, and the other is dysprosium, holmium and erbium. Meanwhile, a proper amount of alkali fluoride, alkaline earth fluoride and sulfate are added to enhance the luminous intensity. The infrared sensing element of the invention has the advantages of high sensitivity, good heat resistance, high mechanical strength, contribution to photography, photoelectric recording and observation, no pollution and the like.
Description
The present invention is a kind of infrared sensor with the thermoluminescence material, and it is to be used for CO
2Laser converts the sensing element of visible orange coloured light in the infrared output of 10.6 μ m.
The II a-VI b compounds of group that mixes has good photoluminescence property.Has darker trap in these materials, trapped electron that can be stable, and just think just can cause luminescence generated by light with near infrared light (λ ∠ 1.7 μ m), this phenomenon and relevant material be used to make infrared sensing element to the near infrared light response [see U.S. Pat 4806772(HO5B33/00), US4812659 (HO5B33/00), US4812660(HO5B33/00)].
But the alkaline earth sulfide of some doping and selenides have thermoluninescent characteristic, yet in the ordinary course of things, its application is out in the cold.Under special process conditions and chemical composition, autotelicly in material, change composition and mix special impurity, introduce the trap of some appropriate depth, can make it under the heat effect of LONG WAVE INFRARED light, produce visible electronics-hole recombination luminescence.Like this, this visible light just becomes the demonstration that acts on the infrared light on the material.Utilize this thermo-sensitive material to make and be fit to many-sided infrared sensing element of using, for example be used to detect CO
2The range estimation element that laser is exported at 10.6 μ m, the infrared display screen of seeing spectrometer, the picture conversion screen of infrared interferometer etc.
What main purpose of the present invention provided a kind of thermoluninescent good heat resistance can be with CO
2Laser converts the infrared sensing element of salmon pink visible light in the infrared output of 10.6 μ m; And this element is provided and constitutes the chemical composition and the preparation method of the material of this element.
Infra-red heat photosensitive elements of the present invention is made of the ceramic chip of difformity that is fired into and different size.This pottery sheet at high temperature sinters into after under high pressure raw material being shaped.This ceramic chip has certain intensity can be contained on the special framework, or on the sintered metal sheet or on other potsherd.
Constitute the ceramic chip of infrared sensor, manufacture by special infrared sensing material.This material is to constitute (piece, powder) by multi-element compounds.Its matrix components is an alkaline earth sulfide, is doping to be divided into special impurity, and it determines properties of materials, and forms other additive (alkaline-earth sulfate, alkali halide, alkali-earth halide etc.) of ceramic chip.Main matrix composition alkaline earth sulfide, before not adding other composition, it does not have any available characteristic.Mix europium into and obtained the characteristic of luminescence generated by light, and the characteristic of mixing the luminescence generated by light that has destroyed europium of second kind of impurity (erbium, holmium, dysprosium and thulium), and strengthened the thermoluminescence characteristic.
The main component of the ceramic chip material therefor of element of the present invention is an alkaline earth sulfide, wherein is mixed with two kinds of rare earth ions, and a kind of is europium, and another kind is a dysprosium, and holmium or erbium etc. add an amount of alkali fluoride simultaneously, and alkaline earth fluoride and sulfate etc. are to increase luminous intensity.Rare earth ion can be an oxide, or sulfide or the adding of halid form.Its relative weight percentage is as follows:
SrS 100 wt%
M(Ca,Sr,Ba)SO
42-10 wt%
M(Ca,Sr,Ba)F
20-8 wt%
M(Li,Na,K)F 1-10 wt%
Eu
2O
30.02-0.08 wt%
R(Er,Ho,Dy,)
2O
30.004-0.04 wt%
The preparation method of infrared sensing element of the present invention:
The compound of above-mentioned ceramic chip is weighed up mixing by required ratio, grind back press molding in the substrate of various sizes and shape, be placed on afterwards in the electric furnace, under inert atmosphere, heat, kept 0.5～2 hour in 1000-1250 ℃ of temperature, promptly get the ceramic chip of element of the present invention after the cooling.
Said substrate can be the mould of various shapes or size, or sheet metal, or alumina ceramic plate.
The above-mentioned element that makes can be contained on the suitable framework so that use according to different needs.
Advantage of the present invention:
Element of the present invention is made by inorganic ceramic material, is characterized in LONG WAVE INFRARED light (CO
2Laser output-10.6 μ m) convert the salmon pink visible light to, its spectral distribution as shown in Figure 1, thereby it has following advantage:
1. highly sensitive;
2. be beneficial to photograph, photoelectric recording and observation;
3. good heat resistance;
4. mechanical strength height;
5. pollution-free, etc.
6. the main use of element of the present invention is wider:
1) is used for observing CO
2The orientation is determined in laser output (wavelength is 10.6 μ m), spot size and disperse situation etc.
2) be used for as Analysis for CO
2Laser is exported the infrared wavelength display screen of seeing spectrometer of meticulous wavelength.
3) be used to be observation CO
2The screen of laser interference image etc.
4) be used for CO
2The location of laser surgey or lasing safety.
Description of drawings:
Fig. 1. luminescent spectrum distribution map (ordinate is luminous intensity I, and abscissa is a wavelength X).
Embodiment 1:
Make the material of element ceramic chip of the present invention by following composition, its relative weight percentage is:
Strontium sulfide 100 wt%
Calcium sulfate 7 wt%
Calcirm-fluoride 4 wt%
Lithium fluoride 1 wt%
Sodium fluoride 5 wt%
Europium oxide 0.045 wt%
Dysprosia 0.004 wt%
Concrete way is to take by weighing strontium sulfide 13370mg, calcium sulfate 935.9mg, calcirm-fluoride 534.8mg, lithium fluoride 133.7mg, sodium fluoride 668.5mg, europium oxide 6mg and dysprosia 0.53mg, after grinding well, mixing is placed on press molding in the special mould, be placed on then in the electric furnace, under 1000 ℃ of temperature, burnt 2 hours, logical simultaneously argon gas.Can get thermoluminescence infrared sensing element of the present invention after the cooling.Its luminescent spectrum is shown in curve among Fig. 12.
Embodiment 2:
The relative weight percentage of each compound of ceramic chip material is:
Strontium sulfide 100 wt%
Barium sulfate 10 wt%
Potassium fluoride 2 wt%
Europium oxide 0.08 wt%
Holimium oxide 0.04 wt%
Concrete way is to take by weighing strontium sulfide 7866mg, barium sulfate 786.6mg, potassium fluoride 157.32mg, europium oxide 6.3mg and holimium oxide 3.1mg are deposited on aluminium flake and the potsherd after mixing grinds well, and are placed in the electric furnace then, under 1250 ℃ of temperature, burnt 0.5 hour logical simultaneously argon gas.Can get thermoluminescence display screen of the present invention after the cooling.Its luminescent spectrum is shown in curve among Fig. 13.
Embodiment 3:
The relative weight percentage of each compound of ceramic chip material is:
Strontium sulfide 100 wt%
Strontium sulfate 2 wt%
Barium fluoride 8 wt%
Lithium fluoride 5 wt%
Europium oxide 0.02 wt%
Erbium oxide 0.02 wt%
Concrete way is to take by weighing strontium sulfide 8582.6mg, strontium sulfate 171.65mg, barium fluoride 686.6mg, lithium fluoride 429.13mg, europium oxide 1.7mg and erbium oxide 1.7mg are placed on press molding in the special mould after mixing grinds well, and are placed in the electric furnace then, under 1050 ℃ of temperature, burnt 1 hour, feed argon gas simultaneously.Promptly get thermoluminescence potsherd of the present invention after the cooling, its luminescent spectrum is shown in curve among Fig. 11.
Claims (2)
1, a kind of 10.6 microns infrared sensing elements exporting orange light, the ceramic chip that it is characterized in that constituting sensing element is fired by multi-element compounds and is formed, and the chemical analysis of multi-element compounds is (by relative weight percentage):
SrS 100 wt%
M(Ca，Sr，Ba)SO
42-10 wt%
M(Ca，Sr，Ba)F
20-8 wt%
M(Li，Na，K)F 1-10 wt%
Eu
2O
30.02-0.08 wt%
R(Er，Ho，Dy，)
2O
30.004-0.04 wt%。
2, according to the described a kind of 10.6 microns infrared sensing elements exporting orange light of claim 1, the method that it is characterized in that firing the ceramic chip is the compound that proportionally weighing constitutes the ceramic chip, press molding is sent in the stove behind the mixed grinding, be heated to 1000～1250 ℃ and kept 0.5～2 hour, after cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94112051 CN1059069C (en) | 1994-02-24 | 1994-02-24 | 10.6 micron infrared sensing element for outputting orange red light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94112051 CN1059069C (en) | 1994-02-24 | 1994-02-24 | 10.6 micron infrared sensing element for outputting orange red light |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1104825A true CN1104825A (en) | 1995-07-05 |
| CN1059069C CN1059069C (en) | 2000-11-29 |
Family
ID=5035862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94112051 Expired - Fee Related CN1059069C (en) | 1994-02-24 | 1994-02-24 | 10.6 micron infrared sensing element for outputting orange red light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1059069C (en) |
-
1994
- 1994-02-24 CN CN 94112051 patent/CN1059069C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1059069C (en) | 2000-11-29 |
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| C14 | Grant of patent or utility model | ||
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