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The spherical micro-cells are a semi-transparent photovoltaic (PV) technology which can contribute to improve the sustainability of greenhouse systems. Previous prototypes were tested in laboratory conditions, but the size was not suitable for the greenhouse roof application. In this work, a new prototype has been developed and tested on a real greenhouse roof. The semi-transparent PV module (STM)...
Improved energy efficiency and the increased use of renewable energy are important objectives for sustainable greenhouse crop production. Two prototypes of semi-transparent-bifacial photovoltaic modules intended for greenhouse roof applications were developed. A module (PV 1 ) using 1500 spherical solar microcells (1.8 mm diameter, crystalline silicon) with 15.4 cells cm −2 density...
Optoelectronic properties of silicon microspheres are explored. The IV characteristics show an electrical response similar to two back-to-back Schottky diodes. Optical resonances with Q-factors of 105 are observable in the elastic scattering spectra.
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