Why III-V nanowires can challenge high-efficiency photovoltaic solar cells

Photovoltaic solar cells (SCs) based on dense arrays of III-V nanowires are believed to possess huge potentials for further improvement of their solar power conversion efficiency. A strategy to achieve this goal requires the exploitation of light wave-guiding mechanism and novel physical concepts. The former mechanism is demonstrated for GaAs-AlGaAs core-shell NWs: large enhancement (up to 200× that of homogeneous - only core - nanowires) of the GaAs near band-edge absorption have been experi...

“Addressing entrepreneurial success through education: the case of Contamination Lab 2.0 at University of Salento”

The complexity and uncertainty of present times urged the necessity to develop new tools to guarantee new generations the opportunity to find their place in the economic system. The rising trend of running innovative business, i.e., start ups, generated a considerable number of unsuccessful ideas falling down the Valley of Death. The scarce attitude to entrepreneurial culture and the dramatic lack of financial resources and their inefficient allocation contribute to populate such place o...

How technological innovations have reshaped the way people deal with religion? A Systematic literature review

Exploiting Self-Tunable RFID Chips for Wireless Sensing of Permittivity to Enable Passive Low-Cost Food-Quality Monitoring Systems

Self-tunable RFID chips allow for dynamic adjustment of their susceptance to improve the conjugate complex matching with the tag antenna even when working conditions vary over time. By exploiting this feature, the chip can wirelessly provide digital information related to the varied boundary condition. In this work, a fully-passive sensor based on a self-tunable Axzon Magnus-S3 chip has been designed and tested to sense the variations in the dielectric constant of a substrate. To achieve this...