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concentrator photovoltaics

The impact of temperature on III-V solar cells

Scientists in Spain have analyzed the impact of temperature and spectral conditions on III-V solar cells employed in concentrator photovoltaic modules. They claim to have assessed the cell behavior under unprecedented operating condition.

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CPV module with improved short-circuit current via microstructured encapsulant coatings

A Canadian consortium led by the Sherbrooke University has developed a CPV panel with improved light absorption through a microstructured anti-reflecting coating consisting of a monolayer of silica beads, which they claim can improve the device’s short-circuit current by up to 3.7%. The module is based on III-V solar cells.

Stretchable CPV module with 15.4% efficiency

Japanese scientists have fabricated a prototype CPV panel that could be applied on spherical surfaces with a curvature radius of 100 mm, and under outdoor one-sun irradiation. The module is based on a silicone concentrator lens, a thermoplastic polyurethane sheet, and a rigid III–V triple-junction solar cell.

CIGS cells for micro-concentrator PV devices

Scientists have developed a new micro CIGS cell by using an area-selective electro-deposition process as a material-saving technique. It has a conversion efficiency rate of 5.2% and a high open-circuit voltage.

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Testing CPM-based passive cooling for CPV systems

An international research team has tested change material heat sinks for heat management on a concentrator photovoltaic system. It found that increasing over height ratios lowers the formation of stratified liquid layers, which in turn reduces the potential hot spots in the upper part of the solar cell.

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