Efficient light manipulation at subwavelength scale is of great interest for solar energy conversion, optical sensing, and nanophotonic devices. Recently, plasmonic nanopatch antennas (PNAs), which consist of plasmonic nanoparticles and metal films with thin layers of dielectric spacers sandwiched between them, have shown promise for directing and enhancing radiation from the dipole emitters at...

a  commercial  ti-nanoxide  was  deposited  on  in-doped  sno2 (ito) polymer  substrates by  tape casting  technique with different thicknesses  (7,  14  and  36μm)  to  be  used  as  photoelectrode  in flexible  dye-sensitized  solar  cells  (dsscs).  ruthenium  dye  was adsorbed on each tio2 film for 24 h. the resulting photoelectrodes were used to form flexible dsscs in combination with elec...

Lithography, the fundamental fabrication process of semiconductor devices, is playing a critical role nowadays in the fabrication of microand nano-structures especially for the realization of micro-electro-mechanical systems (MEMS), microfluidic devices, photonic crystals, photonic integrated circuits, micro-optics, and plasmonic optoelectronic devices. These devices have various practical appl...

For improvement of the conversion efficiency of solar cells, it is important to make effective use of near-infrared light, which accounts for about 40% of sunlight energy. Although solar cells based on quantum dots (QDs) such as PbS have been studied for the use of near-infrared light, their photoabsorption is not necessarily sufficient. In this study, we coupled PbS QD-sensitized solar cells w...

We demonstrate that subwavelength scatterers can couple sunlight into guided modes in thin film Si and GaAs plasmonic solar cells whose back interface is coated with a corrugated metal film. Using numerical simulations, we find that incoupling of sunlight is remarkably insensitive to incident angle, and that the spectral features of the coupling efficiency originate from several different reson...

Solar radiation is mainly concentrated in the visible and infrared spectra ranges, its perfect absorption has great significance to solar cell, energy harvester, emitter, stealth, hot-electron device fields. In this study, we theoretically design numerically demonstrate a highly efficient broadband absorber (VPA) using plasmonic metasurface , which consists of quadrilateral truncated cones conf...

Use of surface plasmons in photovoltaics is a recent and fast emerging field of interest of research that exploit the unique optical properties of metallic nano-structures. Using surface plasmons for guiding and localizing light at nanoscales can be used to improve optical absorption in thin-film solar cells. The present work focuses on the study of absorption enhancement using a periodic array...

Plasmonic luminescent solar concentrators (PLSCs) have been shown to enhance the optical performance and power conversion efficiency of LSCs, due added plasmonic gain in medium. Despite promising outlook a PLSC through coupling, device characterization not verified real outdoor conditions, with varying direct diffuse irradiation. In this work, dimensions 4.5 $$\times$$ 0.3 cm3 embedded Lumogen ...

Quasi three-dimensional (3D) plasmonic nanostructures consisting of Au nanosquares on top of SU-8 nanopillars and Au nanoholes on the bottom were developed and fabricated using nanoimprint lithography with simultaneous thermal and UV exposure. These 3D plasmonic nanostructures were used to detect cell concentration of lung cancer A549 cells, retinal pigment epithelial (RPE) cells, and breast ca...