Abstract: A method and apparatus of growing a thin film are provided. The method comprises at least (a) providing a number of substrates; (b) cleaning the substrates; and (c) placing the substrates into a reaction liquid; (d) vibrating the reaction liquid by ultrasonic waves such that a thin film is grown on the substrates evenly.

Abstract: An electrode for an electrochemical device includes a conductor, and an active layer formed on the conductor and including a polybenzimidazole polymer that contains at least one of the functional group of the following formula:

Abstract: A method and apparatus are provided for growing a composite metal sulphide photcatalyst thin film, wherein photochemical deposition and chemical bath deposition are both performed for growing the composite metal sulphide thin film, such as (AgInS2)x/(ZnS)2(1-x), wherein x is 0-1.

Abstract: A method for preparing a carboxylic polybenzimidazole includes reacting a polybenzimidazole polymer with a cyclic acid anhydride to form the carboxylic polybenzimidazole.

Abstract: A method and apparatus of growing a thin film are provided. The method comprises at least (a) providing a number of substrates; (b) cleaning the substrates; and (c) placing the substrates into a reaction liquid; (d) vibrating the reaction liquid by ultrasonic waves such that a thin film is grown on the substrates evenly.

Abstract: A method and apparatus of growing a thin film are provided. The method comprises at least (a) providing a number of substrates; (b) cleaning the substrates; and (c) placing the substrates into a reaction liquid; (d) vibrating the reaction liquid by ultrasonic waves such that a thin film is grown on the substrates evenly.

Abstract: Disclosed is a method for making a solar cell. In the method, there are provided first and second substrates each including first and second faces. There are provided first and second coating devices and a joining device. The first coating device is used to form a transparent electrode layer on the first face of the first substrate. The second coating device is used to form an absorbing layer on the first face of the second substrate. The second substrate is selenized by hot pressing. The joining device is used to join together the first and second substrates by joining the transparent electrode layer with the absorbing layer. The transparent electrode layer is joined with the absorbing layer by hot pressing. Thus, the solar cell is not made by coating one layer on another. Time for making the solar cell is reduced.

Abstract: Disclosed is a method for making a solar cell. In the method, there are provided first and second substrates each including first and second faces. There are provided first and second coating devices and a joining device. The first coating device is used to form a transparent electrode layer on the first face of the first substrate. The second coating device is used to form an absorbing layer on the first face of the second substrate. The second substrate is selenized by hot pressing. The joining device is used to join together the first and second substrates by joining the transparent electrode layer with the absorbing layer. The transparent electrode layer is joined with the absorbing layer by hot pressing. Thus, the solar cell is not made by coating one layer on another. Time for making the solar cell is reduced.

Abstract: A method for preparing a carboxylic polybenzimidazole includes reacting a polybenzimidazole polymer with a cyclic acid anhydride to form the carboxylic polybenzimidazole.

Abstract: An electrode for an electrochemical device includes a conductor, and an active layer formed on the conductor and including a polybenzimidazole polymer that contains at least one of the functional group of the following formula:

Abstract: A method and apparatus are provided for growing a composite metal sulphide photcatalyst thin film, wherein photochemical deposition and chemical bath deposition are both performed for growing the composite metal sulphide thin film, such as (AgInS2)x/(ZnS)2(1-x), wherein x is 0-1.

Abstract: A method and apparatus are provided for growing a composite metal sulphide photcatalyst thin film, wherein photochemical deposition and chemical bath deposition are both performed for growing the composite metal sulphide thin film, such as (AgInS2)x/(ZnS)2(1-x), wherein x is 0-1.

Abstract: A method and apparatus of growing a thin film are provided. The method comprises at least (a) providing a number of substrates; (b) cleaning the substrates; and (c) placing the substrates into a reaction liquid; (d) vibrating the reaction liquid by ultrasonic waves such that a thin film is grown on the substrates evenly.

Abstract: The present invention discloses a hydrogen storage medium including a composite of an alloy and a catalyst/expandable graphite. The expandable graphite can be replaced by activated carbon. The catalyst content is 1-50% based on the weight of the medium, which can be Pd, Pt, Cu, Co or Ni. The alloy can be a Mg-based alloy, Ti-based alloy, La-based alloy, Mn-based alloy or Fe-based alloy. The present invention also discloses a process for preparing a hydrogen storage composite.

Abstract: A method and apparatus are provided for growing a composite metal sulphide photcatalyst thin film, wherein photochemical deposition and chemical bath deposition are both performed for growing the composite metal sulphide thin film, such as (AgInS2)x/(ZnS)2(1-x), wherein x is 0-1.

Abstract: The present invention discloses a hydrogen storage medium including a composite of an alloy and a catalyst/expandable graphite. The expandable graphite can be replaced by activated carbon. The catalyst content is 1-50% based on the weight of the medium, which can be Pd, Pt, Cu, Co or Ni. The alloy can be a Mg-based alloy, Ti-based alloy, La-based alloy, Mn-based alloy or Fe-based alloy. The present invention also discloses a process for preparing a hydrogen storage composite.

Abstract: A concentration difference photochemical reactor includes of a photochemical reaction tub and a photocatalyst reaction plate. The photocatalyst reaction plate is formed by combining in sequence a photocatalyst, a metal, a conductive carrier, and a reduction electrode to reduce its internal resistance barrier and increase the electron-hole separation rate excited by photons. By adjusting the concentration difference in the solutions inside the photochemical reaction tub, the location of chemical reactions is changed to increase the efficiency and reduce the use of a sacrificing reagent without the restrictions of thermodynamics.

Abstract: A photocatalyst carrier comprises a carrier and a photocatalyst, wherein the carrier having a surface is made of an electric conductive material, and the photocatalyst is coated unevenly onto the surface to form a plurality of photocatalyst electrodes. By applying the concept of electronic transmission, the existence probability of the electron-hole pair is increased for enabling the reactant to perform an oxidation-reduction reaction on the photocatalyst and carrier respectively so as to enhance the photocatalyst activity.