China
Africa
Explore chapters and articles related to this topic
Exotic Solar Technologies
Published in Anco S. Blazev, Solar Technologies for the 21st Century, 2021
The ability to concentrate and scatter light across the surface of the plasmonic solar cell is its key advantage, which enables it to operate at increased efficiencies. Use of metal wires on top of the substrate to scatter the light might be an added benefit, for it utilizes a larger area of the active surface for light scattering and absorption. The problem here is that the lines (which are used instead of dots) might increase the reflectivity, in turn decreasing the efficiency of the cells.
Size-dependent dielectric function for electron-energy-loss spectra of plasmonic nanoparticles
Published in Journal of Modern Optics, 2019
Kai-Jian Huang, Shui-Jie Qin, Zheng-Ping Zhang, Zhong-Chen Bai
In another context, attention has been focussed over the past decade on nanoparticles composed of noble metals, because they support localized surface plasmon resonances (LSPRs). The unique properties of plasmon-based optical elements and techniques enable a wide range of practical applications, including single molecule detection (9), enhanced optical transmission through subwavelength apertures (10), guidance and manipulation at the nanoscale (11,12), plasmonic solar cells for the energy conversion and storage of organic photovoltaics (13), and high-resolution optical imaging below the diffraction limit (14). In practice, the electron beam is a local probe in the great majority of cases, and it is suggested that EELS might directly probe the photonic local density of states (LDOS) (15,16), which is an important parameter in nanophotonics.
Enhanced photocurrent in thin-film GaAs solar cells with embedded Al nanoparticles
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Gurjit Singh, Jagmeet Singh Sekhon, S. S. Verma
In this study, we propose a scheme occupying spherical Al nanoparticle array of different radii embedded at different depths inside the Ta2O5-coated GaAs photoactive layer. It is found that the spectral absorption rate (SAR) and photocurrent are significantly enhanced because of the superposition of plasmonic scattering and antireflection effect induced by Al nanoparticles and Ta2O5 layer, respectively. The results reveal that earth-abundant Al nanoparticles embedded inside ARC-coated GaAs solar cells can provide efficient and cost-effective solution for large-scale application of plasmonic solar cells in order to compete with other fossil fuel technologies.