National Chung Hsing University

Other

Fu-Hsing Lu

Huan-Ping Teng

Jhu-Ling Zeng

Mu-Hsuan Chan

Chu-Tsun Wu

Jiun-Huei Yang

Yu-Chen Liou

Chia-Jung Yang

Po-Lun Wu

A solar energy absorbing device includes a substrate and a solar selective absorber film. The solar selective absorber film has a bottom surface attached on the substrate, and a top surface opposite to the bottom surface. The solar selective absorber film is a TiNObased film, and x and y vary from 1 to 0.1 and 0.2 to 2, respectively, from the bottom surface to the top surface of the solar selective absorber film.

Solar energy absorbing device

A method for electrodepositing copper nanoparticles includes the steps of a) providing a reaction system having an electrolyte solution, a conductive nitride film used as a working electrode and immersed in the electrolyte solution, a copper metal or a copper alloy used as an auxiliary electrode and immersed in the electrolyte solution, and a reference electrode immersed in the electrolyte solution; and b) applying a pulse voltage to the reaction system to form copper nanoparticles on a surface of the conductive nitride film.

Method for electrodepositing copper nanoparticles

A method for forming a ZrOoxide film by plasma electrolytic oxidation includes a first step of placing an anode, which is a substrate with a ZrN film, and a cathode into an electrolyte of which the temperature range is from 65&#xb0; C. to 75&#xb0; C. Said electrolyte contains barium acetate or barium hydroxide ranging from 0.3 M to 0.7 M and sodium hydroxide or potassium hydroxide ranging from 1.5 M to 2.5 M. The method includes a second step of applying a voltage ranging from 50 V to 1000 V to the anode and cathode to finally form a ZrOfilm on a surface of the ZrN film of the anode. A DC power supply, an AC power supply, unipolar pulse power supply or bipolar pulse power supply is applied to said anode and cathode in constant-voltage mode or constant-current mode. The oxide film can be formed more rapidly than the prior art and has excellent crystallinity.

Method for forming ZrO2 film by plasma electrolytic oxidation

A method for forming an oxide film by plasma electrolytic oxidation includes a first step of placing an anode, which is a substrate with a conductive nitride film, and a cathode into an electrolyte of which the temperature range is from 20&#xb0; C. to 100&#xb0; C., and a second step of applying a voltage ranging from 50 V to 1000 V to the anode and cathode to finally form an oxide film on a surface of the conductive nitride film of the anode. The oxide film can be formed more rapidly than the prior art and has excellent crystallinity.

Method for forming oxide film by plasma electrolytic oxidation

A method for forming a metallic nitride film includes the steps of a) providing a target made of titanium or zirconium and a substrate in a vacuum chamber, and b) forming a metallic film, which is a TiN film or a ZrN film, on a surface of the substrate by sputtering deposition under the conditions of maintaining a working pressure of the vacuum chamber in a range of 5&#xd7;10Torr to 5&#xd7;10Torr; introducing a gas mixture of air and argon into the vacuum chamber at a flow rate ratio of the air to the argon ranging from 5:100 to 15:100, and applying a direct current power ranging from 100 Watts to 5000 Watts by a power supply. Because air can be conveniently collected and the requirement of the base pressure is lower than that of a prior art method, the method of the present invention has the advantages of simple equipment requirement, time-effective manufacturing processes and low cost.

Method for forming metallic nitride film

A new technique to synthesize barium titanate (BaTiO) on homogeneous substrates (titanium) or heterogeneous substrates (silicon wafers, metal, glass, ceramics, polymers, other metals, etc.) is disclosed to include a first step to deposit a titanium film on a substrate by sputtering, and a second step to synthesize barium titanate film with uniformly dispersed spherical particles on the titanium-coated substrate in a electrolyte containing barium ions by electrochemically anodic oxidation.

Growing community of inventors

Taichung, Taiwan

Fu-Hsing Lu