摘要:
A low-cost method is provided for forming a photovoltaic device, which is a high-performance nanostructured multijunction cell. The multiple P-N junctions or P-I-N junctions are contiguously joined to form a single contiguous P-N junction or a single contiguous P-I-N junction. The photovoltaic device integrates vertically-aligned semiconductor nanowires including a doped semiconductor material with a thin silicon layer having an opposite type of doping. This novel hybrid cell can provide a higher efficiency than conventional photovoltaic devices through the combination of the enhanced photon absorptance, reduced contact resistance, and short carrier transport paths in the nanowires. Room temperature processes or low temperature processes such as plasma-enhanced chemical vapor deposition (PECVD) and electrochemical processes can be employed for fabrication of this photovoltaic device in a low-cost, scalable, and energy-efficient manner.
摘要:
Fabrication of an amorphous silicon oxide film through PECVD technique employing silane gas, hydrogen gas, and carbon dioxide gas for use as the top cell of the a-SiO:H/a-Si:H tandem cell having the structure glass/TCO/ZnO/p(μc-SiO:H)/buffer(a-SiO:H)/i(a-SiO:H)/buffer(μc:Si:H)/n(μc-SiO:H)/p(μc-Si:H)/p(μc-SiO:H)/buffer(a-SiO:H)/i(a-Si:H)/np(μc-SiO:H)/ZnO/Ag; where a Voc value as high as.1.89 V and efficiency of 7.10% are achieved.
摘要:
The present invention generally pertains to a corrugated transparent top panel provided useful for either increasing or decreasing harvesting of solar radiation and to methods thereof. A special use of this panel is in photovoltaic cells, solar cells, walls, windows and agricultural structures.
摘要:
La presente invención se refiere a un material fotovoltaico tipo P-I-N caracterizado porque comprende al menos tres uniones semiconductoras tipo P-I-N apiladas en tándem, cuyas capas tipo P, I y N comprenden silicio microcristalino hidrogenado contenido en una matriz de silicio amorfo en su composición, y donde además cada una de las capas P y N de cada unión tipo P-I-N presenta una composición particular. Dicho material es adecuado para la obtención de dispositivos fotovoltaicos con soporte cerámico, preferentemente materiales convencionales empleados en la industria de la construcción. También es objeto de la presente invención el método de obtención del material fotovoltaico, asi como el método de acondicionamiento de la superficie del soporte cerámico en cuestión y el esmalte empleado para dicho acondicionamiento, cuya composición es novedosa e inventiva.
摘要:
The invention pertains to a photovoltaic (PV) module comprising a plurality of cells, each cell containing a substrate, a transparent conductor layer, a photovoltaic layer, and a back-electrode layer, wherein the photovoltaic layer comprises at least one p-i-n or n-i-p silicon layer, characterized in that said silicon layer comprises 10 to 1000 conducting spots of recrystallized silicon per cm2, each having independently a surface or 10 to 2500 µm2. The PV module can be obtained by a method wherein the p-i-n or n-i-p silicon layer is locally heated whereby said silicon is transformed at these spots, after which the silicon at these spots is allowed to solidify in a transformed dtate.
摘要:
In the frame of manufacturing a photovoltaic cell a layer (3) of silicon compound is deposited on a structure (1). The yet uncovered surface (3a) is treated in a predetermined oxygen (O2) containing atmosphere which additionally contains a dopant (D). Thereby, the silicon compound layer is oxidized and doped in a thin surface area (5).
摘要:
In the frame of manufacturing a photovoltaic cell a layer (3) of silicon compound is deposited on a structure (1). The yet uncovered surface (3a) is treated in a predetermined oxygen (O2) containing atmosphere which additionally contains a dopant (D). Thereby, the silicon compound layer is oxidized and doped in a thin surface area (5).