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The surface photovoltage (SPV) measurements of CdS/CdT solar cells, prepared by electrodeposition technique, is presented. Minority carrier diffusion length ( L ) and lifetime ( τ ) along with the surface space-charge width ( W ) in the polycrystalline CdTe absorber layers were estimated. A...
We have conducted a series of accelerated exposure test (AET) studies for various samples of crystalline-Si (c-Si) and amorphous-Si (a-Si) cells that were encapsulated with different superstrates, pottants, and substrates. Transmittance, fluorescence, color indices, impedance spectroscopy, laser...
A new tracking ridge concentrator uses proven tracker hardware. Unlike V-trough concentrators no additonal mirror supporting structures are needed. It could double solar energy gain of PV panels in comparison with fixed ones.
A photovoltaic solar cell employing an elastomeric electrolyte and using a dye-sensitized nanoporous TiO 2 electrode has been assembled. The polymeric electrolyte is poly(epichlorohydrin-co-ethylene oxide) filled with NaI/I 2 . This cell exhibits an open-circuit voltage of 0.71 V and a...
We have prepared and tested integrated low-emittance–electrochromic devices using ZnS/Ag/ZnS coatings as transparent electrodes and WO 3 films as electrochromic layers. These devices exhibit adequate coloration and can withstand more than 1000 bleaching-coloration cycles, provided that the...
A solar cell technology with an extremely small thermal budget was developed for MINP cells. MINP solar cells with efficiencies of up to 15.3% have been achieved by rapid thermal processing (RTP). An emitter diffusion process was simulated and developed that yields a doping profile with a...
The potential of CdTe/CdS/Cd 1− x Zn x S structure as an alternative to CdTe/CdS structure in photovoltaic application has been demonstrated. The unoptimized solar cell structure grown on transparent conducting oxide coated soda lime glass of 3 mm thickness with no antireflection coating...
Mo–Ti oxide films with compositions ranging from Mo oxide to Ti oxide were prepared by reactive DC magnetron sputtering. Electrochromic properties were studied in situ during Li ion intercalation. Colored films have a neutral gray appearance. Their stability improved when the Ti content was...
The problem of calculating the photo-induced current in an n + p junction solar cell with a microstructure grating on the top is formulated. For the case where useful absorption regions lie below the grating a closed solution of the problem is obtained, in which the carrier photo-generation rate...
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