Research On Copper And Copper Oxidation For Printed Electronics Technology

Printing electronic is a new green manufacturing technology developed well in recent years owing to its advantages of low-cost,large-area and flexible that functional ink was printed on all kinds of base material using printing technology.Because of low-cost,good stability,safety,environmental friendliness and unique physical and chemical properties,copper-based nanomaterials have a wide range of applications in the field of photoelectric industry,energy and environmental protection,biochemistry and so on.Copper nanomaterials have good electrical conductivity and low electron mobility substituted silver and other precious metals to use as the main business of the conductive ink especially applied to flexible electronics.Copper oxide nanomaterials can minimize the adsorption of toxic intermediates and have advantage of high specific surface area,surface activity,sensitive to changes in the outside world to manufacture sensors.Copper oxide have superhydrophobic properties,so we print the copper oxide ink use the way of screen printing to make superhydrophobic surface.In this paper,we combine the copper-based nanomaterials with printed electronics technology to prepare nanosheet copper nanosheet conductive ink used in flexible electronic,nonenzymatic glucose sensors and the superhydrophobic surfaces.The results achieved in this paper were listed as follows:1.We prepared a variety of morphology of copper nanostructure using solution chemical reduction method in which large area,smooth nanosheets of copper nanostructures we used as main filler conductive ink.We used terpineol acrylic conductive ink that its conductivity up to 1.20 * 104 s/m by studying dispersion,conductivity and adhesion to flexible substrates.In addition,we also studied the surface morphology of conductive circuits on PI after bending hundreds of times that we found that the laminar structure of nanosheet circuits can main the stability of the conductivy under stress,no crack and open circuit phenomenon appeared.2.We prepared flower-like CuO and CuO/graphene nanosheet nanostructures using solution method,then made CuO and CuO/graphene inks by adding terpineol,ethyl cellulose printed on the graphite sheet as nonenzymatic glucose electrode by screen printing.Here we prepared CuO and CuO/graphene nonenzymatic glucose sensors had higher sensitivity and faster response.Compared with previous studies,we used a more simple way,more moderate conditions to synthesize the same self-assembled three-dimensional structure of materials.3.We prepared flower-like CuO nanostructures using solution method and used stearic acid to modify to prepare superhydrophobic surface.We analyzed the morphology of the surface and explain the superhydrophobic using Cassie theory.We used 100 grid knives as adhesion test instrument and the surface can reach the standard of ISO: 0,ASTM: 5B.