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Showing papers in "Solar Energy Materials in 1983"


Journal ArticleDOI
TL;DR: In this article, the density of gap states in undoped and phosphorus and antimony doped a-Si:H has been determined from the absorption coefficient measurement using a constant photocurrent method to determine the value of optical absorption in the low absorption region.

305 citations


Journal ArticleDOI
TL;DR: In this article, the microstructure and optical properties of transparent silica aerogels were investigated and the energy transfer through hypothetical aerogel windows were calculated through theoretical analysis.

133 citations


Journal ArticleDOI
TL;DR: In this article, a triethanolamine complex of cadmium ions, ammonia and thiourea solutions was used for thin films of CdS and CdSe on glass substrate.

126 citations


Journal ArticleDOI
TL;DR: In this paper, the effect of carbon dioxide pressure on the current-potential relationships and on yields of organic reduction products was studied using a photoelectrochemical autoclave, fitted with a quartz window.

107 citations


Journal ArticleDOI
TL;DR: In this article, the reflectivities of TiN, ZrN and HfN have been measured in the spectral energy range 0.1 to 6.2 eV by means of a Kramers-Kronig analysis.

90 citations


Journal ArticleDOI
TL;DR: In this paper, three different oxidation processes were performed and the surface layers obtained were characterized using optical reflectance measurements, X-ray diffraction and SEM, and it was concluded that the difference between chemically and thermally produced surfaces is due to surface morphology.

85 citations


Journal ArticleDOI
TL;DR: In this paper, the electrical and optical properties of thin films of highly doped oxides of In and Sn were investigated and the free electron mobility was limited mainly by ionized impurity scattering.

77 citations


Journal ArticleDOI
TL;DR: In this article, the primary acid degradation product found in the case of ethylene glycol solutions was glycolic acid, and the presence of metallic copper significantly increased the amount of degradation products over that produced in the absence of metal.

45 citations


Journal ArticleDOI
TL;DR: In this article, the thin films of α-Fe2O3 (Eg=1.9eV) prepared by chemical vapor deposition (CVD) from ferrocene and by spray pyrolysis of ferric citrate solution, in the presence of oxygen were characterized by X-ray diffraction studies, electron microscopy, and UV-visible absorption and reflectance spectroscopy.

41 citations


Journal ArticleDOI
TL;DR: In this paper, the effects of boron doping on an i-layer of the p-i-n basis junction structure type amorphous silicon solar cells have been systematically studied.

39 citations


Journal ArticleDOI
TL;DR: In this article, the optical properties of two materials, europium tris benzoylacetonate and tris (2, 2′-bipyridine) ruthenium (II) adsorbed on Vycor porous glass are presented.

Journal ArticleDOI
TL;DR: In this article, a combined spray-CVD method is discussed by which SnO 2 films can be prepared reproducibly using the high-temperature hydrolysis reaction of SnCl 4.

Journal ArticleDOI
TL;DR: In this paper, a study was made of the alloy series a-sixC1−xHy for 1 ⩾ x⩾ 0 prepared by a dc magnetron glow discharge in argon/silane/acetylene mixtures.

Journal ArticleDOI
TL;DR: In this article, a non-linear programming technique was used to optimize the coating conditions using as-plated and heat-treated (10 h at 180°C) data.

Journal ArticleDOI
TL;DR: The effect of various anodization parameters on the structural features and optical properties of solar absorbing nickel pigmented anodic alumina coatings has been studied in this article, where a correlation between the microstructural features and the solar selectivity of these coatings was established.

Journal ArticleDOI
TL;DR: In this article, the improvement of output power characteristics upon etching and Ru3+-chemisorption was reported for polycrystalline p-CuInS2 and p-cuInSe2 CuInS 2 in V(II)/V(III) redox solution exhibits a simulated conversion efficiency of 25% and is stable upon passage of 5000 C.

Journal ArticleDOI
TL;DR: In this article, a SiC coated carbon mold together with Si3N4 powder mold releasing agent was used for directional solidification of silicon, which achieved an AM1 maximum conversion of 10.8%.

Journal ArticleDOI
TL;DR: In this paper, the effects of film thickness, substrates and annealing temperature in air on the performance of CdSe based photoelectrochemical cells have been studied, and open-circuit voltages up to 728 mV have been obtained for film deposited on nickel substrates.

Journal ArticleDOI
TL;DR: In this paper, the aging mechanism for electrodeposited black chrome coatings deposited onto nickel substrates has been studied over the temperature range 350 to 450°C for coatings plated from four different bath compositions.

Journal ArticleDOI
TL;DR: In this paper, the photovoltaic and structural properties of a CuInSe 2 /CdS solar cell, in which the CuSe 2 was a large grained polycrystal and a low resistivity thin film of undoped CdS was evaporated over it, are described.

Journal ArticleDOI
TL;DR: In this article, compositional analysis has been performed on tin oxide films grown by the chemical spray method at temperatures ranging from 260 to 490°C. Compositional analysis shows that non-intentional chlorine doping is always present to an amount that strongly depends on reaction temperature.

Journal ArticleDOI
TL;DR: In this article, the ceramic alloys (Ti,Nb)O2 and (Ti O 2 ) were studied photoelectrochemically in an aqueous electrolyte.

Journal ArticleDOI
TL;DR: In this article, the characterization of these selective absorber coatings has been confirmed by measuring thermal and optical data (α, ϵ), by X-ray examination, mechanical compatibility and by chemical analysis.

Journal ArticleDOI
TL;DR: In this paper, the photoelectrochemical behavior of mechanically polished TiO 2 (rutile) single crystal electrodes was followed as a function of time during photoelectronchemical etching of the surface in acid solutions, and it was found that, as a consequence of this treatment, not only the shape of the photocurrentvoltage curve changed but also the limiting photocurrent increased over one to two orders of magnitude.

Journal ArticleDOI
TL;DR: The role of the substrate in the structure and thermal stability of several types of black chrome has been examined by comparison of optical and structural results on fourteen substrate systems at temperatures up to 450°C as discussed by the authors.

Journal ArticleDOI
TL;DR: In this article, a thin (ca. 9nm) film of Pt was applied to the TiO2/RuO2 discs to improve the yields of H2 and O2 observed upon irradiation with UV light.

Journal ArticleDOI
TL;DR: In this paper, a computer optimization was used to show that 70 nm of CoAl 2 O 3 (58 vol% Co) antireflection coated with Al 2 O3, deposited onto Ni, can yield a s ≈ 0.95 and e T ⪅ 0.1 even without composition grading or surface roughening.

Journal ArticleDOI
TL;DR: The behavior of polycrystalline n-TiO2-photoanodes, produced by anodic oxidation of Ti-metal foils and subsequently reduced in hydrogen atmosphere at various temperatures and different times was investigated in this article.

Journal ArticleDOI
TL;DR: In this paper, the photocurrent-potential and capacitancepotential relations for p-InP in 1 M NaOH and in 0.5 M H 2 SO 4 were determined.

Journal ArticleDOI
TL;DR: In this article, thin films Cd 1−x Hg x S alloys have been prepared by chemical co-deposition from thiourea solutions by increasing the Hg content in the alloys the bandgap of the mixed semiconductor was reduced to a value of 1.8 eV.