Fabrication of sn3o4 nanosheets assembled on flexible substrates for photodetectors

Abstract

The invention discloses a preparation method for assembling Sn3O4 nanosheets on a flexible substrate for a photodetector, which includes the following steps: (10) substrate cleaning: cutting carbon paper into required size, using acetone, absolute ethanol, Ultrasonic cleaning after cleaning with deionized water; (20) preparation of mixed solution: mix Na 3 C 6 h 5 o 7 2H 2 O powder, SnCl 2 2H 2 O powder was dissolved in deionized water and absolute ethanol, and stirred evenly to obtain a mixed solution; (30) nanosheet assembly: put the carbon paper into a reaction kettle filled with a mixed solution, perform hydrothermal reaction, and then take out the reaction kettle Cool naturally to room temperature; (40) Finished product drying: take the carbon paper out of the reactor, ultrasonically clean it with deionized water or absolute ethanol, and dry it to obtain a photodetector assembled with Sn3O4 nanosheets on a flexible substrate. The preparation method for assembling Sn3O4 nanosheets on a flexible substrate for a photodetector of the present invention has simple process, high output and low cost.

Description

technical field [0001] The invention belongs to the technical field of photoelectric functional materials, in particular to a preparation method for assembling Sn3O4 nanosheets on a flexible substrate of a photodetector with simple process, high yield and low cost. Background technique [0002] Tin oxide has aroused great research interest because of its broad application prospects in gas sensing, optoelectronics and other fields. But due to SnO and SnO 2 It has a large energy bandwidth, which is limited in the field of optoelectronics. The mixed valence state of tin oxide has a higher 2 Smaller energy band width is expected to achieve high photoelectric response under visible light, such as: Sn 2 o 3 ,Sn 3 o 4 Wait. [0003] In the prior art, methods for improving photoelectric properties include: increasing photosensitivity, improving response to light of different wavelengths, increasing photoresponse rate, inducing photoresponse, and changing photoconductive direc...

AI Technical Summary

Problems solved by technology

Although the above mainstream methods have improved the photoelectric performance of semiconductors to a certain extent, there are still problems such as cumbersome steps, small amount of products obtained, and high cost, which also limit their application in the industrial field.

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