Nanowire array preparation method

Abstract

The invention provides a nanowire array preparation method. The method comprises the steps as follows: arranging nano stamping glue on the surface of a substrate by rotary coating; B, stamping a template with a nano-structure array onto the substrate with nano stamping glue arranged by rotary coating to transfer the nano-structure array to the nano stamping glue; C, after the substrate with the transferred nano-structure array is inverted, bonding one side, where the nano-structure array is located, of the substrate to a flexible substrate so as to form a nanoscale microchannel array; D, dropping a functionalized polymer solution for producing nanowires to a port part of the microchannel array to enable the solution to flows into microchannels under the action of capillary force of microchannels, and performing self-assembly in the microchannels to form a nanowire array; E, after the solution in the microchannels is volatilized and setting of the nanowire array is finished, removing the substrate to obtain a flexible substrate with the nanowire array. Thus, the cost can be reduced, and the tidily arranged nanowire array can be prepared efficiently.

Description

technical field [0001] The invention relates to the field of nanostructure preparation, in particular to a method for preparing a large-area neat nanostructure array on a flexible substrate. Background technique [0002] The flexible sensor based on the nanostructure array can directly contact the detection substance through the nanostructure as a sensitive unit, relying on the characteristics of low dimensions and nanometers to improve the performance of the sensor, and has the characteristics of portability, low power consumption and high sensitivity. In recent years, the field of nanotechnology has developed rapidly, and sensors with various nanostructures are playing an increasingly important role in industrial production, gas detection, and medical diagnosis of diseases. As the core component of this type of sensor, the preparation of nanostructures is particularly important. [0003] The preparation methods of traditional nanowires can be roughly divided into two cate...

AI Technical Summary

Problems solved by technology

The bottom-up method mainly relies on the self-assembly of molecules to form nanowire structures on the substrate, and can form nanostructures with a size of less than 100 nanometers. However, the nanowire structures prepared by this method are disordered and cannot form neat nanowire arrays, such as Figure 1A Shown does not form neat arrays of nanowires

like Figure 1B Shown is the nanowire array prepared by the top-down method. Although neatly arranged nanostructures can be prepared by ion beam exposure and inkjet printing techniques, expensive equipment and complex operation steps are required. Most of the Technical means are not compatible with flexible substrates, and as the size of nanostructures decreases, the required process steps will be more cumbersome and the cost will be higher. It is difficult to prepare structures below 100 nanometers at low cost.

Images