Cs3Cu2I5 ultraviolet detector and film preparation method thereof
A thin-film, spin-coating technology, used in semiconductor devices, final product manufacturing, sustainable manufacturing/processing, etc., can solve the problems of low blue light luminous efficiency, easy decomposition, damage, etc., and achieve high fluorescence quantum efficiency and uniform thin film. Densification, effect of short annealing time
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[0035] This embodiment provides a Cs 3 Cu 2 I 5 The preparation method of thin film, concrete steps are as follows:
[0036] 1) Dissolve CsI: 469 mg, CuI: 229 mg in a mixed solvent of DMF and DMSO, wherein DMF is 800 μL, DMSO is 200 μL, and heated and stirred at 60 ° C for 1 hour to completely dissolve the precursor solution;
[0037] 2) Ultrasonic cleaning of ITO glass with detergent, deionized water, acetone, alcohol and isopropanol for 30 minutes, followed by UV ozone treatment for 30 minutes before use;
[0038] 3) Use a pipette gun to take 60 μL of the fully dissolved precursor solution and drop it on the center of the ITO glass. After the precursor solution is completely spread out, start the spin coating. Minutes, spin-coating time 15 seconds, spin-coating speed of the second stage is 4000 rpm, spin-coating time is 30 seconds, and in the last 5 seconds of the second stage, 100 μL methyl acetate is quickly dropped in the center of ITO as an anti-solvent to assist crys...
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