摘要:
The present invention provides a method of coating a substrate with a zinc oxide film, the method comprising the steps of: Providing a substrate with at least one substantially flat surface; Subjecting said surface at least partially to a plasma-etching process; Depositing a layer on said etched surface, the layer comprising zinc oxide. The method according to the invention is particularly suitable for manufacturing solar cells with an improved efficiency.
摘要:
A method for manufacturing a micromorph tandem cell is disclosed. The micromorph tandem cell comprises a μc-Si:H bottom cell and an a-Si:H top cell, an LPCVD ZnO front contact layer and a ZnO back contact in combination with a white reflector. The method comprises the steps of applying an AR—Anti-Reflecting—concept to the micromorph tandem cell; implementing an intermediate reflector in the micromorph tandem cell. The micromorph tandem cell can achieve a stabilized efficiency of 10.6%.
摘要:
A method for producing a strip-shaped object of any thickness, width and length, made up of stacked, partially glued together foil strips. According to said method, each of the foil strips is provided with adhesive strips applied across the width (u) of the foil strip on one side, and the adhesive strips are offset from each other on foil strips that directly follow each other. The foil strips are stacked to produce a foil strip stack, pressed against each other in the stacking direction and glued together in order to produce the strip-shaped object. In the process, a line of foil which is provided with adhesive strips crosswise to its longitudinal direction (x) is divided into at least two lines of foil strips of equal width in its longitudinal direction (u). The individual lines of foil strips are deviated and guided one above the other with adhesive strips which are offset from each other, cut into sections from foil strip packets consisting of individual foil strips, in cycles, and fed to the foil strip stack in the form of foil strip packets.
摘要:
The present invention provides an improved thin film solar cell, wherein at least one additional resistive transparent conductive oxide (TCO) layer is incorporated into the solar cell. The additional resistive TCO electrically separates the conductive TCO layers acting as electrodes of such a cell and thus decreases or prevents performance losses. Furthermore, methods for the production of such solar cells are disclosed.
摘要:
A photovoltaic device is provided that includes a substrate, a first transparent conductive layer positioned on the substrate, a plurality of transparent conductive rods positioned on the first transparent conductive layer and having a growth direction, the growth direction extending in a direction away from the substrate, a photovoltaically active layer covering the plurality of transparent conductive rods rods and a conductive layer positioned on the photovoltaically active layer.
摘要:
In the frame of photovoltaic cell manufacturing a silicon compound layer is deposited upon a carrier structure. Manufacturing flexibility is increased on one hand by incorporating ambient air exposure of such silicon compound layer and on the other preventing deterioration of reproducibility by such ambient air exposure by enriching the surface of the addressed silicon compound layer which is to be exposed to ambient air to an oxygen enrichment.
摘要:
A thin film photovoltaic device on a substrate is being realized by a method for manufacturing a p-i-n junction semiconductor layer stack with a p-type microcrystalline silicon layer, a p-type amorphous silicon layer, a buffer silicon layer comprising preferably intrinsic amorphous silicon, an intrinsic type amorphous silicon layer, and an n-type silicon layer over the intrinsic type amorphous silicon layer.
摘要:
A photovoltaic cell (10) is fabricated by depositing a first transparent conductive layer (12) onto a substrate carrier (11). Portions of the first transparent conductive layer (12) are selectively removed to form a plurality of discrete transparent conductive protruding regions (13) or a plurality of discrete indentations (27) in the first transparent conductive layer (12). A silicon layer (14) comprising a charge separating junction is deposited onto the plurality of discrete protruding regions (13) or onto the plurality of discrete indentations (27) by chemical vapour deposition. A second transparent conductive layer (15) is deposited on the silicon layer (14) by chemical vapour deposition.
摘要:
Micromorph tandem cells with stabilized efficiencies of 11.0% have been achieved on as-grown LPCVD ZnO front TCO at bottom cell thickness of just 1.3 μm in combination with an antireflection concept. Applying an advanced LPCVD ZnO front TCO stabilized tandem cells of 10.6% have been realized at a bottom cell thickness of only 0.8 μm. Implementing intermediate reflectors in Micromorph tandem cell devices allow for, compared to commercial SnO2, reduced optical losses when LPCVD ZnO is used. At present highest stabilized cell efficiency reached 11.3% incorporating an in-situ intermediate reflector with a bottom cell thickness of 1.6 μm.
摘要:
A thin film photovoltaic device on a substrate is being realized by a method for manufacturing a p-i-n junction semiconductor layer stack with a p-type microcrystalline silicon layer, a p-type amorphous silicon layer, a buffer silicon layer comprising preferably intrinsic amorphous silicon, an intrinsic type amorphous silicon layer, and an n-type silicon layer over the intrinsic type amorphous silicon layer.