With the increasing development of photothermal techniques in various fields, particularly concentrated solar power (CSP) systems and solar thermoelectric generators (STEGs), the demand for high-performance spectrally selective absorbers (SSAs) has grown significantly. These SSAs are essential in. . Solar direct electricity generating systems, such as photovoltaic (PV) and photovoltaic-thermal (PVT) setups, are the most popular emerging technologies in this field. This is because solar energy is widely available and limitless, and recent advancements have made solar cells more efficient and. .
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