Hybrid silicon/polymer solar cells promise to be an economically feasible alternative energy solution for various applications if ultrathin flexible crystalline silicon (c-Si) substrates are used. However, utilization of ultrathin c-Si encounters problems in light harvesting and electronic losses at surfaces, which severely degrade the performance of solar cells. Here, we developed a metal-assi...

In a thermophotonic device used in an energy-harvesting configuration, hot light-emitting diode (LED) is coupled to photovoltaic (PV) cell by means of electroluminescent radiation order produce electrical power. Using fluctuational electrodynamics and the drift-diffusion equations, we optimise made AlGaAs PIN LED GaAs PV with matched bandgaps. We find that can work as efficient heat pump only n...

Post-harvest losses relate to the degradation in quantity and quality of crop’s products from harvesting consumer usage. In many developing countries, like Pakistan, post-harvest loss is a problem food security concern everyone. Inappropriate handling agricultural after harvest may cause losses. It also accounts for increasing prices Pakistan. The total production vegetables fruits Pakistan nea...

This Extension Note describes some effects of clearcut harvesting and broadcast NPS fertilization on nitrogen (N) mineralization and components of the soil food web at three sites in the ICHmw subzone. We found that the forest floor in clearcuts had lower fungal hyphal lengths, total microbial biomass, microbial biomass N, and potential N mineralization than the forest floor in adjacent forests...

The objective of this study is to design and analyse materials which are capable of harvesting water from thin air using condensation phenomenon which employs the radiative cooling approach. These passive cooling materials not only solve the water generating problems, but also employed in various cooling applications. The fundamental concept of radiative cooling is analysed and the performance ...

The South African Sugar Association Experiment Station, Agricultural Engineering Department conducted a series of semi-mechanised versus fully mechanised harvesting trials on a large commercial estate in Swaziland over the 1998/1999, 2000/2001 and 2001/2002 seasons. During the trials machinery performance was measured, differences in the quality of cane delivered to the factory were determined,...

Using metamaterial absorbers, we have shown that metallic layers in the absorbers do not necessarily constitute undesired resistive heating problem for photovoltaics. Tailoring the geometric skin depth of metals and employing the natural bulk absorbance characteristics of the semiconductors in those absorbers can enable the exchange of undesired resistive losses with the useful optical absorban...