CN207516241U - A kind of fixture based on small size thin-film material examination of infrared spectrum - Google Patents

A kind of fixture based on small size thin-film material examination of infrared spectrum Download PDF

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Publication number
CN207516241U
CN207516241U CN201721502872.3U CN201721502872U CN207516241U CN 207516241 U CN207516241 U CN 207516241U CN 201721502872 U CN201721502872 U CN 201721502872U CN 207516241 U CN207516241 U CN 207516241U
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China
Prior art keywords
sample
small size
film material
infrared spectrum
fixture
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Expired - Fee Related
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CN201721502872.3U
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Chinese (zh)
Inventor
宁洪龙
蔡炜
姚日晖
陶瑞强
陈建秋
朱镇南
郑泽科
章红科
彭俊彪
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South China University of Technology SCUT
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South China University of Technology SCUT
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Abstract

The utility model belongs to thin-film material analysis field, discloses a kind of fixture based on small size thin-film material examination of infrared spectrum.The fixture is made of the double faced adhesive tape in the metal substrate and metal substrate on sheet glass, sheet glass.The utility model is with a kind of simple sample clamp, solve the problems, such as small size film sample sample for encountering in Shimadzu Fourier infrared spectrum is used to test fall, signal it is weak, and enhance the test intensity of sample by plating layer of metal film on a glass substrate, there is very strong practicability.

Description

A kind of fixture based on small size thin-film material examination of infrared spectrum
Technical field
The utility model belongs to thin-film material analytical equipment field, and in particular to one kind is infrared based on small size thin-film material The fixture of spectrum test.
Background technology
In modern thin-film material constituent analysis, infrared spectrum is in quantitative detection film functional group ingredient, thus it is speculated that forming thin film It has a wide range of applications in the process.The characteristics of infra-red sepectrometry is:Quickly, sample size is few (several micrograms-several milligrams), and characteristic is strong (various substances have its specific infrared spectrogram) can analyze the sample of various states (gas, liquid, solid) and not destroy sample. The principle of existing Fourier infrared spectrograph is:The light that light source is sent out is divided into two beams by beam splitter (similar semi-transparent semi-reflecting lens), and one Beam reaches index glass through transmission, and another beam reaches horizontal glass through reflection.Two-beam returns beam splitter through horizontal glass and index glass reflection respectively, Index glass is for linear motion with a constant speed, thus the two-beam after beam splitter beam splitting forms optical path difference, generates interference.Interference Light, by sample cell, reaches detector by the interference light containing sample message after sample, then passes through after beam splitter congregation Fourier transform pairs signal is handled, and finally obtains transmitance or absorbance with wave number or the infrared absorpting light spectra of wavelength.
Film in reflection absorption spectrum method energy high sensitivity measuring metallic substrates, when polarizing light irradiation is in metallic substrates On, when being reflected in metal surface, its phase can change.In the case of orthogonal polarized light, mutually become about 180 °, with Incidence angle is unrelated, therefore the vector of reflected light offsets each other, and standing wave amplitude is almost nil, can't detect the absorption of sample.In water In the case of flat polarised light, continuous change of phase changes to 90 ° from 0 °, and standing wave amplitude equally changes with incidence angle.Work as selection Standing wave amplitude increase during big incidence angle, the effect enhancing of light beam and sample, so as to generate high detection sensitivity.Metallic reflection Rate is higher, therefore this method can detect the film on metal with sensitivity.
In practical operation, (the light path principle figure of its sample test such as Fig. 1 institutes by taking Shimadzu IR series RAS8000 (A) as an example Show, M in figure1~M6For speculum), as can be seen from Figure 1, since light source is under, sample surface should be placed downward.Actually equipment There is sample cell with holes for placing sample, sample cell there are tri- kinds of specifications of Ф 8/15/25mm, in hollow circular hole.Preferable sample is Film in metal substrate, and substrate dimension has to be larger than Ф 8mm, therefore too small sample will fall off, and can not test.This is to a variety of The sample test prepared on different type substrate brings certain difficulty.
Utility model content
In place of above shortcoming and defect of the existing technology, the purpose of this utility model is to provide one kind to be based on The fixture of small size thin-film material examination of infrared spectrum.
The utility model aim is achieved through the following technical solutions:
A kind of fixture based on small size thin-film material examination of infrared spectrum, by the metal substrate on sheet glass, sheet glass It is formed with the double faced adhesive tape in metal substrate.
Further, the size of the sheet glass is 30mm*30mm~50mm*50mm.
Further, the thickness of the metal substrate is 50~150nm.Aluminium, silver, copper etc. can be selected in the material of metal substrate The high metal of reflectivity.
Further, the double faced adhesive tape is located at metal substrate center.
Further, the size of the double faced adhesive tape is less than 2mm*2mm.
A kind of method based on small size thin-film material examination of infrared spectrum, includes the following steps:
Small size thin-film material sample to be tested is pasted on the double faced adhesive tape of above-mentioned fixture, then will be pasted with sample to be tested Fixture be inverted on the specimen holder of Shimadzu Fourier infrared spectrograph, sample to be tested is made to be placed in specimen holder trepanning middle position, It can start to test.
Further, the size of the small size thin-film material is 2mm*2mm~20mm*20mm.
The principle of the utility model is:By sample being sticked to below the fixture with metal substrate so that small size sample Product will not directly be fallen down from specimen holder tapping, and infrared light directly acts on sample surfaces, and fixture has metal substrate in addition, from And there is larger reflectivity, it is ensured that sample signal intensity is sufficiently high.
The utility model has the following advantages that and advantageous effect:
The utility model solves small size film sample and is using Shimadzu Fourier red with a kind of simple sample clamp The problem of sample encountered in external spectrum test is fallen, signal is weak, test size range is extended to not less than area of section The sample of 2mm*2mm, and enhance the test intensity of sample by plating layer of metal film on a glass substrate, there is very strong reality The property used.
Description of the drawings
Fig. 1 is the light path principle figure of Shimadzu IR series RAS8000 (A) sample test.
Fig. 2 is that a kind of fixture based on small size thin-film material examination of infrared spectrum in utility model embodiment 1 is pasted The structure diagram of sample;Number is described as follows in figure:1- sheet glass, 2- metal substrates, 3- double faced adhesive tapes, 4- samples.
Fig. 3 is tests using the fixture in embodiment 1 in Shimadzu IR series RAS8000 (A) Fourier infrared spectrograph The result figure of zirconia film sample.
Fig. 4 is tests using the fixture in comparative example 1 in Shimadzu IR series RAS8000 (A) Fourier infrared spectrograph The result figure of zirconia film sample.
Specific embodiment
The utility model is described in further detail with reference to embodiment and attached drawing, but the implementation of the utility model Mode is without being limited thereto.
Embodiment 1
A kind of fixture based on small size thin-film material examination of infrared spectrum of the present embodiment, the structure for pasting sample are shown It is intended to as shown in Figure 2.It is made of the double faced adhesive tape 3 in the metal substrate 2 and metal substrate on sheet glass 1, sheet glass, double faced adhesive tape 3 On for pasting sample 4.Wherein sheet glass size is 30mm*30mm, and it is 100nm without graphical aluminium film that metal substrate, which is thickness, Double faced adhesive tape covering surface is 1mm*1mm.The preparation method and the use fixture of the present embodiment fixture carry out small size thin-film material The method of examination of infrared spectrum is as follows:
(1) 30mm*30mm sheet glass is cut;
(2) sheet glass obtained by step (1) is taken, one layer of 100nm is deposited without graphical aluminium film as metal substrate, by aluminium film face It is positioned over downward on instrument sample seat and is used as background scans;
(3) in metal substrate intermediate region sticking two-faced adhesive tape, double faced adhesive tape covering surface is 1mm*1mm, is obtained described based on small The fixture of size thin-film material examination of infrared spectrum;
(4) step (3) is taken to paste the fixture of double faced adhesive tape, 100nm aluminium is plated on the glass of 10mm*10mm cross-sectional sizes, Then spin coating zirconia film prepares sample on aluminium, will be sticked on the double faced adhesive tape of fixture outside specimen face side;
(5) fixture that step (4) is stained with to sample to be tested is inverted in Shimadzu IR series RAS8000 (A) fourier infrared light Specification is on the specimen holder of Ф 25mm in spectrometer, sample to be tested is made to be placed in specimen holder trepanning middle position, you can start to test.It surveys Test result is as shown in figure 3, can be observed-Zr-O in Fig. 3 ,-O-O ,-C-O ,-OH peaks, and peak intensity is big.
Comparative example 1
Compared with Example 1, the non-deposition of aluminum film of fixture is as metal substrate.Gained fixture uses similarly to Example 1 Sample and method are tested.The results are shown in Figure 4, and it is weak that Fig. 4 can be observed sample-Zr-O characteristic peaks, illustrates substrate reflectivity It is not high.
It can be placed and be not less than using fixture described in the utility model it can be seen from the result of embodiment 1 and comparative example 1 The sample of area of section 2mm*2mm, and the metal film enhancing reflectivity on fixture, can so that reception signal is stronger, peak position is got over Significantly.It can be observed-Zr-O ,-O-O ,-C-O in Fig. 3 ,-OH peaks, peak intensity is big.Test result sample spy can be observed in Fig. 4 Sign peak-Zr-O is weaker, and O-O peaks are also very weak, is covered substantially by-Zr-O, leads to the not high institute of reflectivity by the non-metal-coated membrane of its substrate It causes.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of the utility model is not by above-mentioned The limitation of embodiment, the change made under other any Spirit Essences and principle without departing from the utility model are modified, are replaced In generation, simplifies combination, should be equivalent substitute mode, is included within the scope of protection of the utility model.

Claims (5)

1. a kind of fixture based on small size thin-film material examination of infrared spectrum, it is characterised in that:By on sheet glass, sheet glass Double faced adhesive tape in metal substrate and metal substrate is formed.
2. a kind of fixture based on small size thin-film material examination of infrared spectrum according to claim 1, it is characterised in that: The size of the sheet glass is 30mm*30mm~50mm*50mm.
3. a kind of fixture based on small size thin-film material examination of infrared spectrum according to claim 1, it is characterised in that: The thickness of the metal substrate is 50~150nm.
4. a kind of fixture based on small size thin-film material examination of infrared spectrum according to claim 1, it is characterised in that: The double faced adhesive tape is located at metal substrate center.
5. a kind of fixture based on small size thin-film material examination of infrared spectrum according to claim 1, it is characterised in that: The size of the double faced adhesive tape is less than 2mm*2mm.
CN201721502872.3U 2017-11-13 2017-11-13 A kind of fixture based on small size thin-film material examination of infrared spectrum Expired - Fee Related CN207516241U (en)

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CN201721502872.3U CN207516241U (en) 2017-11-13 2017-11-13 A kind of fixture based on small size thin-film material examination of infrared spectrum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721502872.3U CN207516241U (en) 2017-11-13 2017-11-13 A kind of fixture based on small size thin-film material examination of infrared spectrum

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107741407A (en) * 2017-11-13 2018-02-27 华南理工大学 A kind of fixture and method of testing based on small size thin-film material examination of infrared spectrum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107741407A (en) * 2017-11-13 2018-02-27 华南理工大学 A kind of fixture and method of testing based on small size thin-film material examination of infrared spectrum

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Granted publication date: 20180619