Abstract: The present invention proposes an electrode thin film and a method for manufacturing the electrode thin film. The method includes: determining a height between a first roller and a substrate and a coating speed for the first roller coating a first metal nanowire suspension liquid onto the substrate based on a suspension property of the first metal nanowire suspension liquid; coating, by using the first roller, the first metal nanowire suspension liquid onto the substrate with the coating speed to form a wetting film on the substrate; and controlling a first temperature of the substrate heating the wetting film based on the suspension property of the first metal nanowire suspension liquid to dry the wetting film as the electrode thin film. The first temperature makes a dewetting speed of the wetting film higher than a drying speed of the wetting film.

Abstract: A method for promoting an electric output of a piezoelectric/conductive hybrid polymer is provided. The method includes forming a piezoelectric/conductive hybrid polymer by mixing poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) so as to increase an output current and an output power of the piezoelectric/conductive hybrid polymer; and changing a surface structure of the piezoelectric/conductive hybrid polymer by a nano-imprint process for promoting a piezoelectricity of the piezoelectric/conductive hybrid polymer. As a result, an output voltage, the output current and the output power of the piezoelectric/conductive hybrid polymer are increased.

Abstract: A method for promoting an electric output of a piezoelectric/conductive hybrid polymer is provided. The method includes forming a piezoelectric/conductive hybrid polymer by mixing poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) so as to increase an output current and an output power of the piezoelectric/conductive hybrid polymer; and changing a surface structure of the piezoelectric/conductive hybrid polymer by a nano-imprint process for promoting a piezoelectricity of the piezoelectric/conductive hybrid polymer. As a result, an output voltage, the output current and the output power of the piezoelectric/conductive hybrid polymer are increased.

Abstract: A microfluidic device includes a substrate, a microchannel, and a porous filter. The microchannel is formed in the substrate and has a first open end and a second open end distal from the first open end. The porous filter is disposed proximally to the first open end and has a plurality of polymeric microparticles clumping together and partially melt-bonded to each other to form a cluster. A method of making the microfluidic device is also provided.

Abstract: A method of fabricating a piezoelectric/conductive hybrid polymer thin film is provided, which is promoting an electric output of a piezoelectric polymer and includes: a mixing step including: forming a piezoelectric solution by dissolving a PVDF-TrFE in an active solvent; forming a conductive solution by dissolving a PEDOT:PSS in a water; and forming a piezoelectric/conductive hybrid polymer solution by mixing the piezoelectric solution and the conductive solution; a filming step, wherein the piezoelectric/conductive hybrid polymer solution is heated, thus the piezoelectric/conductive hybrid polymer thin film is formed; and an anneal step, wherein the piezoelectric/conductive hybrid polymer thin film is recrystallized and a nano-sized protruding structure is formed on a surface of the piezoelectric/conductive hybrid polymer thin film.

Abstract: The present invention proposes an electrode thin film and a method for manufacturing the electrode thin film. The method includes: determining a height between a first roller and a substrate and a coating speed for the first roller coating a first metal nanowire suspension liquid onto the substrate based on a suspension property of the first metal nanowire suspension liquid; coating, by using the first roller, the first metal nanowire suspension liquid onto the substrate with the coating speed to form a wetting film on the substrate; and controlling a first temperature of the substrate heating the wetting film based on the suspension property of the first metal nanowire suspension liquid to dry the wetting film as the electrode thin film. The first temperature makes a dewetting speed of the wetting film higher than a drying speed of the wetting film.

Abstract: A piezoelectric device includes a nanoimprinted film which is made from a ferroelectric polymer having a first conformation state and coated on a substrate. The ferroelectric polymer is heated at a temperature between a Curie point (Tc) and a melting point (Tm) of the ferroelectric polymer to cause a change in conformation of the ferroelectric polymer from the first conformation state to a second conformation state, and is then subjected to a nanoimprinting process at an imprinting temperature lower than Tc to cause a change in conformation of the ferroelectric polymer from the second conformation state to a third conformation state that is different from the first conformation state, thereby obtaining the nanoimprinted film.

Abstract: A method of fabricating a piezoelectric/conductive hybrid polymer thin film is provided, which is promoting an electric output of a piezoelectric polymer and includes: a mixing step including: forming a piezoelectric solution by dissolving a PVDF-TrFE in an active solvent; forming a conductive solution by dissolving a PEDOT:PSS in a water; and forming a piezoelectric/conductive hybrid polymer solution by mixing the piezoelectric solution and the conductive solution; a filming step, wherein the piezoelectric/conductive hybrid polymer solution is heated, thus the piezoelectric/conductive hybrid polymer thin film is formed; and an anneal step, wherein the piezoelectric/conductive hybrid polymer thin film is recrystallized and a nano-sized protruding structure is formed on a surface of the piezoelectric/conductive hybrid polymer thin film.

Abstract: A piezoelectric device includes a nanoimprinted film which is made from a ferroelectric polymer having a first conformation state and coated on a substrate. The ferroelectric polymer is heated at a temperature between a Curie point (Tc) and a melting point (Tm) of the ferroelectric polymer to cause a change in conformation of the ferroelectric polymer from the first conformation state to a second conformation state, and is then subjected to a nanoimprinting process at an imprinting temperature lower than Tc to cause a change in conformation of the ferroelectric polymer from the second conformation state to a third conformation state that is different from the first conformation state, thereby obtaining the nanoimprinted film.

Abstract: An inkjet printing method for forming a continuous three-dimensional structure is disclosed. A pre-patterned temporary structure is formed on a substrate for defining a filling groove on the substrate. An inkjet printing process is performed for filling the ink droplets into the filling groove. The ink droplets cover the filling groove and contact the surface of the temporary structure and the substrate at the same time. A self-aligned effect is formed by a composition of the gravity of the ink droplets, a surface tension between the ink droplets and the temporary structure, and a surface tension between the ink droplets and the substrate. When the ink droplets are solidified, a standalone continuous three-dimensional structure is formed by removing the temporary structure. The geometry of the continuous three-dimensional structure can be defined by the temporary structure; therefore a small track width of the solidified ink droplets can be obtained.

Abstract: A method for manufacturing a printed circuit board includes applying a layer of an ink material onto the substrate, the ink material includes a number of conductive particles contained in a solution, and the substrate is then heated to remove the solution and to sinter or retain the conductive particles on the substrate and to form a conductive metal line on the substrate of the printed circuit board. One or more additional layers of the ink material are applied onto the conductive metal line of the substrate with an electroplating process, or by repeating applying the ink material onto the conductive metal line and heating and retaining the conductive particles on the conductive metal line of the substrate.