Abstract:
The present invention relates to an electrode comprising a non-conductive substrate, a first layer and a second layer. The first layer is disposed on the substrate and comprises indium tin oxide or fluorine-doped Sn0 2 . The second layer is disposed on the first layer and comprises CoS. A process for preparing this electrode is also disclosed. Such an electrode is particularly useful in a photovoltaic cell.
Abstract:
A method for the preparation of nanoparticles of metal oxides containing inserted metal particles and to metal-intercalated and/or metal-encaged "inorganic fullerene-like" (hereinafter IF) structures of metal chalcogenides obtained therefrom is provided, which comprises heating a metal I material with water vapor or electron beam evaporation of said metal I material with water or another suitable solvent, in the presence of a metal II salt, and recovering the metal II-doped metal I oxide, or proceeding to subsequent sulfidization, yielding bulk quantities of metal II-intercalated or metal II-encaged IF structures of the metal I chalcogenide. The metal II salt is preferably an alkaline, alkaline earth or transition metal salt, most preferably an alkali chloride. The intercalated and/or encaged IF structures are useful as lubricants. They also form stable suspensions, e.g. in alcohol, and electrophoretic deposition from said suspensions yields thin films of the intercalated IF materials, which have a range of potential applications.
Abstract:
The present disclosure provides a photovoltaic device and a method for forming the photovoltaic device. The photovoltaic device comprises a first solar cell structure having a photon absorbing layer comprising an organic material having a first bandgap; and a second solar cell structure having a photon absorbing layer comprising a material that has a Perovskite structure and having a second bandgap. The first and second solar cell structures are positioned at least partially onto each other.
Abstract:
Quantum dot dye-sensitized solar cell (QDDSSC) comprising an anode, a cathode, an electrolyte between the anode and the cathode, wherein the anode comprises: -a semiconductor electrode layer absorbed with at least one organic dye, said organic dye comprising at least one triaryl-amine group and at least one benzo-heterodiazole group; -at least one quantum dot (QD) distributed within the semiconductor electrode layer, said quantum dot (QD) having an average diameter ranging from 1.5 nm to 3.6 nm, preferably ranging from 1.6 nm to 3.2 nm.
Abstract:
A method comprising: irradiating ultraviolet light on at least one solid composite electrode comprising at least one semiconductor material which is in contact with at least one liquid solution comprising carbon dioxide; switching the state of the solid composite electrode between an open circuit mode and a closed circuit mode during the irradiating step; wherein the carbon dioxide is reduced to form an elemental carbon-containing reaction product. Carbon dioxide is photoelectrochemically converted to an elemental carbon-containing reaction product including a carbon rich material which is at least 90 wt.% carbon. The form of the carbon material can be controlled by the time period in the switching step.
Abstract:
The present invention relates to an electronic device comprising a substrate and at least two electrodes spaced by a nanogap, wherein the at least two electrodes are bridged by at least one nanoparticle and wherein the at least one nanoparticle has an overlap area with the at least two electrodes higher than 2% of the area of the at least one nanoparticle. The present invention also relates to a method of manufacturing of said electronic device and to the use of said electronic device in photodetector, transistor, phototransistor, optical modulator, electrical diode, photovoltaic cell or electroluminescent component.
Abstract:
The present invention provides a completely new manufacturing method for a photoelectric converter for a solar cell, said manufacturing method bringing about various prominent effects, by means of at least any one among cadmium sulfide particulate, cadmium selenate particulate and chalcopyrite compound particulate being adhered and mixed on the outer periphery of carbon semiconductor particulate and integrated. Said prominent effects include enabling the shortening a film formation process and thus reducing manufacturing costs, increasing power generating efficiency and increasing flexibility, making a film thinner and simplifying film formation properties in comparison to when functional layers are layered. The present invention also provides a photoelectric converter for a solar cell and a solar cell using said photoelectric converter. The photoelectric converter is characterised by being formed by means of at least any one among cadmium sulfide particulate, cadmium selenate particulate and chalcopyrite compound particulate being adhered and mixed on the outer periphery of carbon semiconductor particulate.
Abstract:
The present invention relates to photovoltaic cells comprising group IV-VI semiconductor nanocrystals as photoactive components. In particular, these nanocrystals are of core-shell or core-alloyed shell configuration, each comprising a core of a first group IV-VI semiconductor material having a selected band gap energy, and either a core-overcoating shell consisting of a second group IV-VI semiconductor material or a core-overcoating alloyed shell consisting of an alloy of said first group IV-VI semiconductor material and a second group IV-VI semiconductor material, respectively.
Abstract:
An integrated photoelectrochemical (PEC) cell generates hydrogen and oxygen from water while being illuminated with radiation (10). The PEC cell employs a liquid electrolyte (E), a multi-junction photovoltaic electrode (4), and a thin ion-exchange membrane (7). A PEC system and a method of making such PEC cell and PEC system are also disclosed.