Abstract: A polycrystalline magnetocaloric material based on thermally annealed Fe100-xRhx melt-spun ribbons with chemical composition x in the interval 48?x?52 at. % and the bcc CsCl-type crystal structure (B2) and method for manufacturing the same. The material has improved magnetocaloric properties associated to first-order magneto-elastic phase transition compared to bulk alloys of similar chemical composition manufactured by conventional melting techniques; exhibiting both low-magnetic field induced giant magnetocaloric effects and enhanced refrigeration capacity close to the room temperature range, due to the fast increase of a magnetic entropy change at low fields that is followed by a broad table-like magnetic entropy change as function in the temperature curve.

Abstract: The embodiment of this invention lies on experimental evidence of photoconductivity activity of a hybrid solar cell, organic/chalcogenide. The device is made of thin layers of conductive indium-tin-oxide (ITO) on glass with a 100 nm layer of chalcogenide molybdenum di-sulfide (MoS2) and a thin layer of about ˜50 nm of complex organic compound assembled at room temperature. The device was tested to conventional electrical transport measurements in the regime of ?1V to 1V under electromagnetic radiation simulator at 100 mW/cm2. Results indicate solar conversion efficiency of 2.48% and current density of 6.35 mA/cm2.