Method for dispersing antimony-doped tin dioxide nano-particles by using small molecular amine
A nanoparticle, small molecular amine technology, applied in chemical instruments and methods, chemical/physical processes, dissolution, etc., can solve the problems of carbon deposition, damage to the resistivity and light transmittance performance of transparent conductive films, and surface roughness. , to achieve the effect of simple and effective technical solutions
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Embodiment 1
[0021] In this embodiment, the method for dispersing antimony-doped tin dioxide nanoparticles with small molecule amines, the specific steps are as follows:
[0022] 1. Add 0.1g of ATO nanoparticles into 1ml of deionized water, repeat 5 times to obtain 5 parts of ATO nanoparticles suspension;
[0023] 2. Taking four small molecular amines including n-propylamine, ethylenediamine, triethylamine and ethanolamine as representatives, respectively take 10 μL and add them to the suspension obtained in step 1 to obtain dispersions of different small molecular amines dispersed in ATO nanoparticles (see figure 2 ). Depend on figure 2 It can be seen that the nanoparticles in the ATO suspension without adding any amines soon settled to the bottom, while the suspensions added with small molecule amines all remained clear, and there was no settling phenomenon of nanoparticles.
Embodiment 2
[0025] In the present embodiment, the method of using ethanolamine to disperse antimony-doped tin dioxide nanoparticles is as follows:
[0026] 1. Add 0.1g of ATO nanoparticles into 1ml of deionized water, repeat 4 times to get 4 parts of ATO nanoparticles suspension;
[0027] 2, get respectively 0.01ml, 0.06ml, 0.12ml, 0.2ml ethanolamine and add in the suspension obtained in step 1, obtain the ATO nanoparticle dispersion of different ethanolamine concentrations (see image 3 ). Depend on image 3 It can be seen that the ATO nanoparticle suspensions added with ethanolamine all remain in a clear state, and there is no sedimentation phenomenon of nanoparticles. With the increase of ethanolamine concentration, the color of the suspension gradually becomes lighter.
Embodiment 3
[0029] In the present embodiment, the method of using ethanolamine to disperse antimony-doped tin dioxide nanoparticles is as follows:
[0030] 1. Add 0.05g, 0.2g, 0.4g, and 0.5g of ATO nanoparticles into 1ml of deionized water respectively to obtain 4 parts of ATO nanoparticle suspension;
[0031] 2, get 10 μ L ethanolamines and add in the suspension of step 1 gained, obtain the ATO nanoparticle dispersion liquid of different ATO nanoparticle concentration (see Figure 4 ). Depend on Figure 4 It can be seen that when the ATO nanoparticle addition is 0.05g and 0.2g, the suspension remains in a clear state without the sedimentation of the nanoparticle, and the color of the suspension becomes darker; when the ATO nanoparticle addition is 0.4g and 0.5g, the suspension The liquid is gel-like, and can still be used to prepare ATO transparent conductive films by methods such as spin coating.
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