Publication

Solar module and its production process

Abstract

The present invention relates to a solar module comprising a front sheet, a transparent solar cell and a structured reflecting layer comprising color patterned portions. The solar cell has a transparency of at least 5%, preferably at least 10%, more preferably at least 20%, said transparency being defined as being transparent to an incident light beam having a wavelength between 350nm and 2µm, said transparency being defined over the whole surface of said solar cell. Moreover, the structured reflecting layer is chosen in such a way that the solar module presents a colored pattern to an observer or to an imaging system positioned to the incident light side of the solar cell. Such solar modules have reflected colored patterns in the visible and /or the near-infra red part of the spectrum and can be easily incorporated into the architecture of the buildings.

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Related concepts (15)
Thin-film solar cell
Thin-film solar cells are made by depositing one or more thin layers (thin films or TFs) of photovoltaic material onto a substrate, such as glass, plastic or metal. Thin-film solar cells are typically a few nanometers (nm) to a few microns (μm) thick–much thinner than the wafers used in conventional crystalline silicon (c-Si) based solar cells, which can be up to 200 μm thick. Thin-film solar cells are commercially used in several technologies, including cadmium telluride (CdTe), copper indium gallium diselenide (CIGS), and amorphous thin-film silicon (a-Si, TF-Si).
Solar cell
A solar cell, or photovoltaic cell, is an electronic device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Individual solar cell devices are often the electrical building blocks of photovoltaic modules, known colloquially as solar panels.
Solar-cell efficiency
Solar-cell efficiency refers to the portion of energy in the form of sunlight that can be converted via photovoltaics into electricity by the solar cell. The efficiency of the solar cells used in a photovoltaic system, in combination with latitude and climate, determines the annual energy output of the system. For example, a solar panel with 20% efficiency and an area of 1 m2 will produce 200 kWh/yr at Standard Test Conditions if exposed to the Standard Test Condition solar irradiance value of 1000 W/m2 for 2.
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