Ultraviolet polymerization electret based self-assembly method
A technology of ultraviolet light and electret, which is applied in the process of producing decorative surface effects, decorative art, gaseous chemical plating, etc., can solve the problems of low processing efficiency, high process cost, small processing area, etc., and achieve improvement Processing efficiency, simple process route, and the effect of reducing manufacturing costs
Active Publication Date: 2015-06-03
XI AN JIAOTONG UNIV
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Problems solved by technology
However, the traditional preparation methods have many shortcomings: (1) low processing efficiency, for example, the atomic force processing is slow and the processing area is small; (2) the process cost is high, for example, focused ion beam and electron beam processing require expensive and complicated Processing equipment (3) Processing conditions are harsh, such as corona discharge requires high voltage, thermal polarization method needs to heat the material to a molten state
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[0023] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0024] A self-assembly method based on ultraviolet light curing electret, comprising the following steps:
[0025] The first step, the preparation and processing of the conductive gold template: as figure 1 As shown, the required graphic template 2 is prepared on the glass substrate 1 by photolithography, and the characteristic dimensions are w1, w2, h1, and then a layer of conductive gold layer 3 with a thickness of h2 is sputtered, as shown in figure 2 As shown, the photoresist is finally removed and stripped to obtain a patterned conductive gold template, such as image 3 shown, and with C 4 f 8 It is surface treated to facilitate its release from UV photocurable polymers;
[0026] The second step, the selection and treatment of the base material: use FTO or ITO glass 4 as the base material, and use a glue leveler to spin-coat a layer of UV photocurable polym...
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An ultraviolet polymerization electret based self-assembly method includes: manufacturing a conductive golden die plate with a certain pattern structure by photoetching, sputtering and stripping, subjecting the conductive golden die plate to surface treatment, selecting a transparent conductive material as a base material, preparing micrometer UV (ultraviolet) cured polymer material on the base material, inducing schematized charges on the surface of the UV cured polymer material by applying external electric field between the conductive base material and the conductive golden die plate, irradiating the UV cured polymer material by ultraviolet light after passing the transparent conductive base material from the bottom on the premise of constant voltage so that the polymer material is cured and the schematized charges induced by the external electric field are frozen, removing external voltage, and peeling off the conductive golden die plate from an ultraviolet polymerization electret. By electrostatic force generated by the ultraviolet polymerization electret, self-assembly of various nano materials is realized, and the ultraviolet polymerization electret based self-assembly method can be widely applied to various fields of photoelectrons, bio-pharmaceuticals, gas sensors, photovoltaic devices and the like.
Description
technical field [0001] The invention belongs to the technical field of micro-nano manufacturing, and in particular relates to a self-assembly method based on ultraviolet light curing electret. Background technique [0002] Nanomaterial self-assembly is an effective and important method in the preparation of new structures. It is mainly used to synthesize nano- or micro-scale structures with many novel properties, and is widely used in many fields such as optoelectronics, biopharmaceuticals, gas sensors, and photovoltaic devices. In the self-assembly process, atoms, molecules, particles, and other constructs, driven by system energy, assemble themselves into specialized functional structures. The driving force to achieve self-assembly includes van der Waals force, hydrogen bond, electrostatic force, surface tension, capillary force, etc. Among them, the electrostatic force generated by the electret patterned charge can realize the self-assembly of various nanomaterials, incl...
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IPC IPC(8): B81C1/00
Inventor 邵金友丁玉成陈小亮李祥明田洪淼胡鸿
Owner XI AN JIAOTONG UNIV