Showing papers in "Solar Energy Materials and Solar Cells in 1999"

TL;DR: In this paper, a model is presented that estimates the enhancement of optical absorption that can be obtained from light scattering in the porous nanocrystalline films used in these cells and from reflection at the back electrode.

TL;DR: In this article, an experimental study on the surface texturization of monocrystalline wafers with solutions containing sodium-hydroxide and isopropanol was carried out.

TL;DR: In this article, a series of viologens have been synthesized, characterised and tested for their suitability as redox chromophores in electrochromic devices, which are irreversibly adsorbed at a transparent nanoporous-nanocrystalline TiO2 electrode.

TL;DR: In this article, the authors describe the fabrication and characteristics of highly efficient and stable CdTe/CdS thin solar cells, which are prepared in three subsequent phases: the front contact is fabricated via sputtering, the second phase consists in the treatment of the CdS layer, which is the key factor for the fabrication of a good heterojunction, with CdCl 2 and the subsequent deposition of the cdTe layer via close space sublimation technique.

TL;DR: In this article, the spectral properties of I−, I2 and I−/I2 mixture were studied in 1,2-dichloroethane (DCE), acetone (AC), acetonitrile (ACN), ethanol (EtOH), methanol (MeOH), tertiary-butanol (t-BuOH), dimethylformamide (DMF), propylenecarbonate (PC), 3-methoxypropionitrile(MePN), DMSO), dioxane(DIO) and

TL;DR: In this paper, the application of photoconductance measurements of the effective lifetime of silicon wafers to determine the saturation current density of diffused emitter regions is reviewed, and a sequence of experiments is presented with phosphorus diffusions of various types: oxide passivated and unpassivated, lightly doped and heavily doped.

TL;DR: In this article, a cone-shaped trimeric arborol-type viologen was prepared with the intention to fill out the space above the convex surface of the nanoparticles particularly well.

TL;DR: In this article, the authors examined the necessary process research improvements needed in amorphous silicon, copper indium diselenide, cadmium telluride, and experimental thin film silicon PV technologies to reach the $50/m2 goal.

TL;DR: In this paper, the authors investigated the action of oxygen and water-related surface defects in situ by impedance spectroscopy, photoconductivity, photoluminescence, and optical transmission as well as by characterizing solar cells which were prepared under respective conditions.

TL;DR: In this article, a sol-gel process is used to prepare thin titanium dioxide nanoparticle layers by spin-coating or doctor-blading techniques, which are used for the transport of electrons in photoelectrochemical solar cells.

TL;DR: In this article, the performance of all-solid-state electrochromic windows to control the solar energy has been investigated and the most important features are their environmental stability and the possibility of large area applications.

TL;DR: In this paper, the authors focus on issues to attain confidence in the durability of EC devices for energy efficient architectural glazing, and discuss the environmental conditions that EC glazing are subjected to, are detailed and discussed.

TL;DR: In this paper, various electrochromic windows (ECWs) have been investigated using mainly tungsten oxide (WO 3 ), polyaniline (PANI) and prussian blue (PB), in combination with poly(2-acrylamido-2-methyl-propane-sulphonic acid) (PAMPS) as a solid proton-conducting electrolyte.

TL;DR: In this article, a simple, economical method of mass producing electrochromic displays was proposed, where the display was printed on polymer film utilizing commercially available conductive inks in an interdigitated electrode structure with a conductive metal oxide powder, dispersed in a polymer binder, as the electrode surface.

TL;DR: In this paper, the authors used X-ray diffractometry (XRD), XPS, scanning electron microscopy (SEM), UV-visible (UV-Vis) spectroscopy and cyclic voltammetry (CV).

TL;DR: In this article, a two-step electrodeposition process was used to grow polycrystalline thin films with various Ga to In ratios, which were characterized by X-ray diffraction, scanning electron microscopy, and energy dispersive spectroscopy.

TL;DR: In this paper, three squarylium cyanine dyes were synthesized and their photoelectrochemical parameters were improved with increase in the adsorption ability of the dyes on nanocrystalline TiO 2.

TL;DR: In this article, the structural, morphological, compositional and opto-electronic properties of electrodeposited and selenized CIS and CIGS thin films were characterized using various techniques.

TL;DR: In this article, the performance and real-time and accelerated testing of prototype monolithic lithium-ion EC glazings in insulating glass units (IGUs) are discussed.

TL;DR: In this paper, the grain boundary passivation in CdS/CdTe solar cells has been investigated using EBIC and OBIC images in a solar irradiation (front-wall) geometry.

TL;DR: In this article, the diffusion of Na within the Mo grains was found to be very slow as indicated by the unchanged shape and position of the implant peak after the anneal, and an increased level of Na in the bulk of the Mo layer strongly suggests diffusion out of the soda lime glass substrate into the Mo film.

TL;DR: In this article, the electrical, structural and optical properties have been investigated as a function of various deposition parameters, namely dopant concentrations, temperature and nature of substrate, using atomic force microscopy.

TL;DR: In this article, the W-4f core level of WO3 film at different levels of coloration has been investigated using XPS, showing that the W4f peaks become broader after coloration.

TL;DR: In this paper, the microstructure, stoichiometry and optical properties of amorphous Ta 2 O 5 films were investigated as a function of the film thickness, and it was found that the refractive index and extinction coefficient values were affected by the thickness of the coatings.

TL;DR: In this article, a thorough study of the role of the crystallites and the grain boundaries in the macroscopic measurements of WS 2 thin films is presented, which gives information on the properties and on the photovoltaic prospect of the films.

TL;DR: In this article, an unconventional thin film CdTe-CdS solar cell device configuration was developed, in which the substrate is molybdenum foil and CdS is deposited on top of cdTe, was achieved by using thin interlayers.

TL;DR: The status of electrochromic devices based upon the reversible electrodeposition of thin bismuth-copper films is reported in this paper, where the electrochemistry and interface chemistry of the system relevant to information display applications are briefly described.

TL;DR: In this article, the absorption coefficient spectra of the elctrodeposited CdTe thin films were analyzed and compared with that of the single crystal, and the effect of heat treatment on the optical transitions were analyzed with films annealed at 300°C in air, argon and CdCl 2.

TL;DR: In this article, the authors present experimental studies on the deposition and characterisation of ZnS/Ag/ZnS low-e coatings carried out to assess their optical performance and stability.