A three-dimensional model that simulates the performance of quasimonocrystalline porous silicon (QMPS) at the backside reflector of an elementary polysilicon solar cell is developed. Analytical expression for the photocurrent generated under the effect of the reflected light is derived in the base region. An improvement effect is obtained on the photovoltaic parameters compared to conventional ...

Upgraded metallurgical grade silicon (UMG-Si) for photovoltaic (PV) solar applications has been manufactured through the route by means of process developed Ferrosolar. In an ambitious mass production test, performed in commercial cells and modules lines, was proven to be appropriate photovoltaics (Fornies et al., 2019 Mass test made 100% umg silicon. 20.76% record efficiency. Energies 12), rea...

Worldwide solar photovoltaic (PV) markets have grown at an average rate at 38% over the past ten years. While polysilicon flat panel PV modules have traditionally dominated the overall solar market, a range of different solar energy conversion technologies are starting to gain market share. One such class of solar technologies, concentrator photovoltaics (CPV), is in its commercial infancy but ...

Herein, an update on the work high-efficiency p-type solar cells with p-type-passivating rear contacts formed by low-pressure chemical vapor deposition and screen-printed is given. It shown that thin polysilicon layers enable a high level of surface passivation but do show increased contact resistivity especially recombination. Commercially available pastes dependence recombination polylayer th...

Polysilicon recombination junctions whose n-type bottom layers double as a passivating contact to the silicon surface are investigated. Such key element in interconnection of tandem devices with cell, and they could be used simplify processing sequence single-junction cells interdigitated back contacts (IBCs). tunneling require high temperatures crystallize layers; however, this also facilitate...

Various antireflection thin films are often used to cover glass to increase solar cell electrical parameters. In the recent years many efforts have been done to develop and improve of solar cell films with high electrical output. One of the most important challenges of obtaining of high-efficiency thin films of solar cells is creation an effective light trapping system. The new polymeric protec...

tellurium (te) nanostructures have been successfully synthesized via a simple hydrothermal methodfrom the reaction of a tecl4 aqueous solution with thioglycolic acid (tga) as a reductant. tga can be easily oxidized to the corresponding disulfide [sch2co2h]2, which in turn can reduce tecl4 to te. the obtained te was characterized by xrd, sem, eds, and drs. the effect of reducing agent on morphol...

We have investigated the feasibility of multimode polysilicon waveguides to demonstrate the suitability of polysilicon as a candidate for multilayer photonic applications. Solid Phase Crystallization (SPC) with a maximum temperature of 1000°C is used to create polysilicon on thermally grown SiO2. We then measure the propagation losses for various waveguide widths on both polysilicon ...