Showing papers in "Solar Cells in 1988"

TL;DR: In this article, a Pascal program, PVNet, is developed at the Commission of the European Communities Joint Research Centre, Ispra, to model the electrical behaviour of solar cell interconnection circuits, and the program calculates three-quadrant solar cell currentvoltage (I-V) curves using a lumped parameter equivalent circuit model, combines them to obtain the resultant I-V curve of any interconnection circuit, and calculates the operating point of each circuit element, set by user-defined operating conditions.

TL;DR: The status of Cu 2 O solar cells is reviewed in this paper, where an analysis of the causes of this poor performance is given and possible areas for future research in the field are outlined.

TL;DR: In this article, the processing steps necessary for producing high efficiency electrodeposited CdTe and HgCdTe solar cells are described, and the results of studies made on the structural, electrical and optical properties of the electrodeposed CdS, CcDTe, and HcDte films are presented.

TL;DR: In this article, the authors discuss the observations which have provided insight and direction to Ametek's CdTe solar cell program and design a solar cell that exploits existing properties.

TL;DR: In this paper, the first experience of the use of II-VI compound solar cells was described, and the present solar cells and modules are now on the market for both indoor use and outdoor use.

TL;DR: In this article, polycrystalline p-CdTe films have been deposited by two chemical vapor deposition techniques, namely the combination of vapors of elements (CVE) and close-spaced sublimation (CSS).

TL;DR: In this article, the effect of high temperatures and lower copper concentrations in polycrystalline thin films of CuInSe2 and CuGaSe2 was studied by electrron microprobe analysis, X-ray diffractometry, Hall effect and van der Pauw measurements, and spectrophotometry in the near-infrared and visible range.

TL;DR: In this article, the indium-rejection behavior, which occurs during the deposition process in H 2 Se reactive sputtering, makes it difficult to achieve indium compositions beyond the amount that can be incorporated into the CuInSe 2 chalcopyrite phase.

TL;DR: In this article, the use of different module configurations with multijunction (MJ) solar cells was investigated and the performance of two-junction tandem cells with different module configuration was analyzed by means of computer modeling.

TL;DR: In this paper, an innovative method employing a multi-potential procedure is used to produce the bilayer (indium-rich) thin films, which are electrodeposited at constant potentials in unstirred solution.

TL;DR: In this article, the photoelectrochemical behavior of n-snS was studied in Fe3+/Fe2+, Ce4+/Ce3+ and I2/I− redox couples.

TL;DR: In this paper, the effect of surface etching and stoichiometry on the properties of Schottky barriers and heterojunctions with CdS and indium tin oxide (ITO) formed on p-type CdTe crystal is reviewed.

TL;DR: In this article, high rate cadmium telluride (CdTe) film deposition by close-space vapor transport was investigated, leading to 4 cm 2 tin oxide and CdTe solar cells of efficiency greater than 10% under a 100 mW cm −2 air mass 15 global spectrum, a cell of efficiency 105% had a short-circuit current of 281 mA cm−2, an open circuit voltage of 0663 V and a fill factor of 0563.

TL;DR: In this paper, a single-phase CdTe/CdS solar cells with a transparent Cu-indium tin oxide contact have been made with an efficiency greater than 8.5%.

TL;DR: In this paper, the authors showed that trace impurities can have significant effects on the behavior of the cells and could be responsible for the aging behavior of CdS/CdTe solar cells.

TL;DR: In this article, the authors summarize recent results in hydrogen passivation in silicon, and present the first comprehensive diffusion profiles, i.e. profiles in floating zone n-type and p-type vs. temperature and vs. resistivity.

TL;DR: In this paper, an inexpensive process for the production of relatively large-area CdS/CdTe cells is described and the resulting cell characteristics are reported, and the process is shown to be efficient.

TL;DR: In this article, the importance of extrapolating the actual results of outdoor measurements of the electrical characteristics of a photovoltaic array to standard test conditions (STC) is discussed and a practical procedure is proposed.

TL;DR: This method uses monthly average meteorological data and easily acquirable system parameters in order to determine possible photovoltaic system sizes, capable of supplying any given monthly average hourly load profile.

TL;DR: In this article, various methods of determining the illuminated current vs. voltage parameters of two-terminal and multiterminal multijunction solar cells with respect to standard reporting conditions (temperature, spectral irradiance and total irradiance) are discussed.

TL;DR: In this article, GaAs concentrator cells with efficiencies of 23.7% and 23.6% (1 sun, air mass (AM) 1.5 global) have been achieved for GaAs p-n heteroface cells with areas of 0.25 cm2 and 4.1 cm2 respectively.

TL;DR: In this paper, a transient analysis of the photoluminescence (PL) decay produces lifetime as a parameter, and fitting the data to the model, the authors estimate the bulk lifetime in window-absorber heterojunction structures.

TL;DR: In this paper, a two-junction, two-terminal cascade solar cell with high-conductance junctions was constructed by metal-organic chemical vapor deposition (MOCVD) to achieve power conversion efficiencies as high as 16.5% under 1 Sun, air mass 1.5 (AM1.5) illumination, and 15.3% under 400 Sun.

TL;DR: In this paper, a new method is presented to evaluate the series resistance of a solar cell, which not only takes into account the effects of light and temperature on the series resistances, but also takes the diode junction ideality factor as an output current dependent parameter such that the values of the resistance measured are more accurate.

TL;DR: In this article, it was shown that the structural changes that underlie the metastability are made possible by the diffusive motion of hydrogen, and that the metastable effects are induced by changes in the Fermi energy position and are removed by bringing the electronic structure into thermal equilibrium at elevated temperatures.

TL;DR: In this article, the vacuum deposition methods used at the Boeing High Technology Center for the preparation of each of the layers in the ternary based CuInSe2/CdZnS and quaternary based CdZNS solar cells were reviewed.

TL;DR: In this paper, the authors showed that polycrystalline CdZnTe films with band gaps of about 1.65 eV were successfully grown by MBE and metal-organic chemical vapor deposition (MOCVD) respectively.

TL;DR: In this paper, the authors present experimental results on the reflectance characteristics of textured polycrystalline silicon substrates for different surface conditions, namely bare silicon, with antireflection coating, and after encapsulation.

TL;DR: In this article, the spectra of GaInP films lattice-matched to GaAs are reported and the band structure is shown to vary even at a fixed composition because of ordering of the alloy.

TL;DR: In this paper, two different device types were produced and analyzed at Photon Energy, Inc., with the help of the Photovoltaic Measurements and Performance branch at the Solar Energy Research Institute.