The flexible dye-sensitized solar panel with an organic chromophore is formed from an organic chromophore dye in a polymer matrix. The organic chromophore dye is extracted from chard (B. vulgaris subsp. cicla). The polymer matrix may be formed from either poly(vinyl alcohol) or polystyrene. The flexible dye-sensitized solar panel with an organic chromophore is made by preparing a solution of the selected polymer in the dye extracted from the B. vulgaris subsp. cicla. The solution is coated on a glass plate and dried to form a thin film. The thin flexible film is removed from the plate, forming the flexible dye-sensitized solar panel with an organic chromophore.

The present invention relates to a solar cell sheet comprising a first and a second substrate, which first and second substrates are flexible and suitable for roll to roll printing, and the solar cell sheet further comprises one or more self-contained solar cell units, wherein each self-contained solar cell unit comprises one or more solar cell modules, and each solar cell module comprises a plurality of serially connected solar cells, wherein each of the solar cell modules comprises: a first substrate portion of the first flexible substrate and a second substrate portion of the second substrate, a plurality of first electrodes and a plurality of second electrodes arranged between the first and second substrate portions; and at least one organic active layer arranged between the plurality of first electrodes and the plurality of second electrodes; wherein, a continuous or discontinuous portion of a first adhesive material encircles each of the solar cell units. The present invention further relates to a method for producing the solar cell sheet comprising one or more self-contained solar units.

Disclosed is a solar cell. The solar cell includes a semiconductor substrate, conductivity-type regions located in or on the semiconductor substrate, electrodes conductively connected to the conductivity-type regions, and insulating films located on at least one of opposite surfaces of the semiconductor substrate, and including a first film and a second film located on the first film, the second film has a higher carbon content than that of the first film, a refractive index of the second film is equal to or less than a refractive index of the first film, and an extinction coefficient of the second film is equal to or greater than an extinction coefficient of the first film.

A solar cell including: a silicon substrate; a back electrode; a doped silicon layer; an upper electrode, wherein the upper electrode includes a plurality of three-dimensional nanostructures extending along a same direction; an electrode lead, wherein a direction of the electrode lead intersects with the direction of the plurality of three-dimensional nanostructures; wherein the three-dimensional nanostructures includes a first rectangular structure, a second rectangular structure, and a triangular prism structure; the first rectangular structure, the second rectangular structure, and the triangular prism structure are stacked, a first width of a bottom surface of the triangular prism structure is equal to a second width of a top surface of the second rectangular structure, and is greater than a third width of a top surface of the first rectangular structure, materials of the first rectangular structure and the triangular prism structure are metal.

Methods of fabricating solar cell emitter regions with differentiated P-type and N-type regions architectures, and resulting solar cells, are described. In an example, a solar cell can include a substrate having a light-receiving surface and a back surface. A first doped region of a first conductivity type, wherein the first doped region is disposed in a first portion of the back surface. A first thin dielectric layer disposed over the back surface of the substrate, where a portion of the first thin dielectric layer is disposed over the first doped region of the first conductivity type. A first semiconductor layer disposed over the first thin dielectric layer. A second doped region of a second conductivity type in the first semiconductor layer, where the second doped region is disposed over a second portion of the back surface. A first conductive contact disposed over the first doped region and a second conductive contact disposed over the second doped region.

A photoelectric conversion module (10) comprises a photoelectric conversion cell (12) and a grid electrode (31) provided in the photoelectric conversion cell (12) on a substrate. The photoelectric conversion cell (12) includes a first electrode layer (22), a second electrode layer (24), a photoelectric conversion layer (26) between the first electrode layer (22) and the second electrode layer (24). The second electrode layer (24) is formed of a transparent electrode layer located on opposite side of the photoelectric conversion layer (26) to the substrate (20). The grid electrode (31) is provided between the photoelectric conversion layer (26) and the transparent electrode layer.

A ferroelectric component includes a first electrode, a tunnel barrier layer disposed on the first electrode to include a ferroelectric material, a tunneling control layer disposed on the tunnel barrier layer to control a tunneling width of electric charges passing through the tunnel barrier layer, and a second electrode disposed on the tunneling control layer.

An apparatus incorporating a multi-surface heat sink may comprise an integrated circuit die, a heat spreader, a plate element, and a heat sink. The heat spreader may be positioned above the IC die. The plate element may be positioned above the heat spreader. A bottom surface of the heat sink may have a first region positioned above the plate element. One or more spring elements may be positioned between the plate element and the first region of the bottom surface of the heat sink. The one or more spring elements may be under a compressive load between the plate element and the heat sink. One or more thermal conduit elements may be secured to both the plate element and the heat sink. The one or more thermal conduit elements may apply at least a part of the compressive load between the plate element and the heat sink.

A flexible solar cell is a flexible organic solar cell that can be completed at a low temperature, is easily prepared, and has a relatively low cost and relatively high efficiency. The flexible transparent electrode is prepared by selecting a plastic substrate with silver nanowires embedded therein, and thus, a flexible transparent electrode with better electrical properties, stronger adhesion and better mechanical properties can be obtained. The flexible transparent electrode prepared using the substrate with the silver nanowires embedded therein has lower sheet resistance and higher conductivity. Moreover, on a microstructure, the silver nanowires in the flexible substrate with the silver nanowires embedded therein can induce upper spin-coated silver nanowires to be more uniformly distributed, and can form nodes with the upper spin-coated silver nanowires, such that the adhesion between an upper electrode and the substrate is enhanced, which can further guarantee the good mechanical properties of the electrode.

A method of forming a photovoltaic device comprising a perovskite photovoltaic cell, particularly a method of forming a perovskite solar cell (PSC), is disclosed having a hole transport layer comprising an additive that may result in one or more of reduced formation of crystalline domains in the hole transport layer; reduced size of pinholes in the hole transport layer; improved dopant homogeneity and increased hydrophobicity of the hole transport layer. Also disclosed are PSCs so formed, showing one or more improved properties.