Showing papers in "Solar Energy Materials and Solar Cells in 1998"

TL;DR: In this paper, the electrical properties of Cu 2 O films were analyzed by means of the hot-probe thermoelectric method, resistivity and mobility measurements, and it was found that the CuO layer formed was also p-type semiconducting.

TL;DR: In this paper, a numerical solution of the radiative transfer equation was used to calculate the multiple scattering of a dye-sensitized solar cell, and the authors showed that a suitable mixture of small particles, which result in a large effective surface, and of larger particles which are effective light scatterers, have the potential to enhance solar absorption significantly.

TL;DR: In this paper, a dye-sensitized nanoporous TiO2 solar cells are studied under influences of light intensity, redox couple concn., temp., different cations and water in the nonaq. soln.

TL;DR: In this article, the basic concepts underlying the chemical bath deposition technique and recipes developed in our laboratory during the past ten years for the deposition of good-quality thin films of CdS, CdSe, ZnS, PbSe, SnS, Bi2S3, BiSe3, SbS3 Sb2S2, CuS, CuSe, etc.

TL;DR: In this paper, a series of characterizations on the film quality by scanning electron microscope, X-ray photoelectron spectroscopy, Xray diffraction and Fourier transform infrared spectrometer has been made, and the performance of solar thermal conversion are also identified on the produced films.

TL;DR: Reflectance calculation for various single-, double-and triple-layer Antireflection coatings on silicon substrate is presented in this paper. But the authors focus on the single-layer layer and do not consider the triple layer layer.

TL;DR: In this paper, an electrical model of dye-sensitized solar cells is presented, which relates material parameters to cell performance, based on these parameters, the model permits the calculation of steady state properties such as internal currents or particle densities and the complete I-V characteristic of a DSC.

TL;DR: A selection of switchable glazing devices that change color electrically are detailed in this paper, including electrochromic, dispersed liquid crystal and dispersed particle glazing that switch under an applied electric field.

TL;DR: In this article, a simplified solar cell fabrication procedure is presented that uses natural anthocyanin or chlorophyll dyes extracted from plants, which illustrates how interdisciplinary science can be taught at lower division university and upper division high school levels for an understanding of renewable energy as well as basic science concepts.

TL;DR: In this article, an improved theoretical model of a thermoelectric device which has been developed for geometrical optimization of the thermiolectric element legs and prediction of the performance of an optimum device in power generation mode is presented.

TL;DR: In this article, a solid-state solar cell was fabricated by photoelectrochemical polymerization of pyrrole on porous nanocrystalline TiO 2 electrode sensitized by the Gratzel dye, cis -di(thiocyanato)-N,N′-bis(2,2′-bipyridyl-4,4′-dicarboxylic acid)-ruthenium (II) dihydrate, [RuL 2 (NCS) 2 ]).

TL;DR: In this article, the role of the complexing agent and of the ligands in chemical bath deposition quality is discussed, as well as the uniformity and stability of the films, and the future trends for chemically and electrochemically deposited polycrystalline thin films are addressed.

TL;DR: In this article, the construction of an electrochromic window based on a modified transparent nanostructured metal oxide film (TiO2 anatase, 4.0μm thick) supported on conducting glass (F-doped tin oxide, 10 Ω/square, 0.5μm) is described.

TL;DR: In this article, the effects of chelating agent were extracted from the results of cyclic voltammetry, photoelectrochemical test, scanning electron microscopy and X-ray diffraction spectroscopy.

TL;DR: In this article, a model that is based on a low free-electron concentration and a high concentration of deep levels in the CdS window layer is presented. But this model is not consistent with observed variations in current-voltage, capacitance, and laser scan data with illumination wavelength and history.

TL;DR: In this article, a simple chemical bath deposition method using selenourea as a selenide ion source from an aqueous alkaline medium was used to obtain ZnSe thin films.

TL;DR: In this article, ZnO buffer layers were grown by a chemical bath deposition (CBD) in order to improve the interface quality in p-CuInS2-based solar cells, to improve light transmission in the blue wavelength region, but also as an alternative to eliminate the toxic cadmium.

TL;DR: In this paper, gallium-doped ZnO (GZO) thin films were obtained for the first time onto glass by the spray pyrolysis process, using zinc acetate and gallium pentanedionate as precursors.

TL;DR: In this article, the authors show that non-uniform illumination produces significant local heating in concentration solar cells and produces ohmic drops higher than expected, mainly because the cell operates locally at higher irradiance.

TL;DR: In this paper, the surface interaction of TiO2 powder particles sensitized with two of the most efficient sensitizers, the mono-nuclear complex [RuL2(SCN)2 and the tri-nuclear Complex RuL2[μ-(CN)Ru(CN)L′2]2, was investigated using FTIR spectroscopy.

TL;DR: In this article, the chemical bath deposition of US thin flims on the Cu(In,Ga)Se2 (GIGS) absorber layers and glasses was investigated.

TL;DR: In this article, a method for coating thin optically transparent conducting films of CuI (p-type semiconductor of band gap ∼3.1 ǫ) on glass is described.

TL;DR: In this paper, the photoelectrochemical properties of all-solid-state photo electrochemical cell constructed from a conjugated polymer poly[3-(4-octylphenyl)thiophene] and an amorphous poly(ethylene oxide) complexed with iodide/triiodide redox couple were studied.

TL;DR: In this paper, a single junction p-i-n cells were made in a superstrate structure using p-μc-Si : H as the window layer directly on top of SnO2 : F coated glass.

TL;DR: In this article, the authors measured the absorptivity for band-to-band transitions in a textured and non-textured silicon solar cells at room temperature, and determined only the part of the absorption leading to the generation of electron-hole pairs.

TL;DR: In this article, a study was carried out in a Hull cell in order to optimize the deposition conditions of cobalt xide (black cobalt) in an electrolytic bath, which uses cobalt nitrate for direct obtention of black cobalt.

TL;DR: In this paper, a general model for sizing a stand-alone photovoltaic system, using as energy input data the information available in any radiation atlas, is proposed.

TL;DR: In this paper, the authors report on solar absorber surfaces prepared in a sputtering unit designed for industrial production using roll coating technique and high sputtering rates, which is as cost effective as other commercial coatings available for flat plate collectors.

TL;DR: In this article, a series of polycrystalline WO3 solids loaded with platinum (0.5, 1.0, 2.0 and 3.0 ) were prepared and characterised by X-ray diffraction, diffuse reflectance spectroscopy, scanning electron microscopy, specific surface areas determination, X-Ray photoelectron spectroscope.

TL;DR: In this paper, the optical properties of surface-relief gratings, structured on a submicrometer scale, were investigated by effective medium approaches and by rigorous diffraction theory, and the angle-dependent transmittance and the reflectance of glass panes coated with structured ORMOCER films were measured.