Large-scale programmable active transfer printing stamp and transfer printing method based on bionics design

Abstract

The invention discloses a large-scale programmable active transfer printing stamp and a transfer printing method based on the bionics design. A thermally driven bionic stamp is prepared by the steps of manufacturing a micro-cavity array on a high polymer stamp body, filling a thermally driven working medium, and then packaging with an adhesive thin film. Under the action of the external heating load, the thermally driven working medium controls the deformation of the adhesive thin film of the surface of the stamp so as to adjust the contact area of the stamp and ink, so that the adhesion between the stamp and the ink is adjusted, and strong adhesion pickup and weak adhesion printing of the ink are realized. The large-scale programmable active transfer printing stamp based on the bionics design provided by the invention is simple in structure, convenient to manufacture and low in cost; the thermally driven temperature is low, so that the heat damage on the stamp, the ink and a substratedue to high temperature can be effectively avoided; large-scale transfer printing can be realized by heating through adopting an overall heat source; or by adopting a laser beam for local heating, and by combining a displacement platform or a galvanometer and a field lens, the selective large-scale programmable active transfer printing is realized.

Description

technical field [0001] The invention relates to a transfer printing technology, in particular to a large-scale programmable active transfer stamp and transfer method based on bionic design, which can be used for the deterministic assembly of any patterned micro-nano structure. Background technique [0002] Transfer printing technology is a technology that integrates micro-nano materials into spatially ordered two-dimensional or three-dimensional functional modules. Transfer printing technology can be applied to the preparation of some heterogeneous and uneven high-performance integrated functional systems, such as Flexible optical / electronic devices, three-dimensional or curved optical / electronic devices, biocompatibility detection and measurement equipment. This technology can effectively integrate different types of independently prepared discrete components on a large scale to form a spatially ordered functional system. It can transfer a wide range of materials, from com...

AI Technical Summary

Problems solved by technology

[0016] Due to the divergence of the magnetic field, the resolution of the local magnetic field is generally limited

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