N. M. Bordina's scientific contributions
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Publications (34)
The basic results of experimental studies on the effect of low energy electrons on the characteristics of photovoltaic cells, solar battery fragments, and a full-scale solar battery are generalized. The approaches to reducing solar battery electrization are given.
Viewed are designs of double faced solar elements made of i and GaAs. It is shown that by optimizing parameters of solar elements one can obtain equal sensitivity on both sides of an element. Average power of double faced solar batteries carried by a low-orbit spacecraft will grow 30% up comparatively to single faced solar batteries through the use...
Conditions of the occurrence of low-voltage arc between the sections of a solar battery (SB) during its exposure to electrons in the outer space are investigated experimentally. SB sections were placed in a vacuum chamber ensuring the pressure of (3-6)×10 -5mmHg; Sb voltage was simulated with a storage battery or condenser. Electron irradiation was...
Equations and boundary conditions for calculating a temperature distribution in the plane of a solar battery (SB), heated nonuniformly (in particular, under partial shading), are described. Examples of the heating dynamics and temperature distribution over a partially shaded photoconverter (PC), being a part of the SB, are given. It is shown that p...
Arc discharges on a solar battery (SB) were first observed in experiments on modeling thermomechanical actions in a vacuum chamber. When an SB is operated in outer space, its dielectric covers (glass) are charged to a high potential under the action of high-energy particles (electrons, protons, etc.), as a result of which electric discharges occur...
The article examines the effects of direct and indirect action of the charge accumulated in glass when photovoltaic (PV) cells are irradiated with electrons of average energies on the PV cells' volt-ampere characteristics.
Protective glass on the surface of solar cells may accumulate an electric charge when irradiated by electron fluxes. Here, the direct and indirect effects of medium-energy (50 keV) electrons on the volt-ampere characteristics of silicon solar cells are investigated theoretically and experimentally. It is found that a potential generated on the glas...
The authors investigated silicon photovoltaic cells with an isotype back junction in conditions of concentrated radiation. We used a concentrating device based on a one-meter concentrator with an automatic system for tracking the sun in two planes. To determine the photocurrents (I//p//h) of two PV cells, we measured their volt-ampere characteristi...
The change in the transmission of K-208 glass under the action of an electron stream with energy of the order of several tens of kiloelectron volts depends on the thickness of the specimens, the radius of the irradiated surface, and the material of the substrate on which the glass specimens are laid for exposure. The dependence of the transmission...
Photoconverters with two-sided sensitivity were manufactured by capillary liquid epitaxy. The converters have an area of 2. 2 cm**2 and have a pGaAlAs-pGaAs-nGaAs structure.
The short-circuit current of a two-sided photoconverter (PC) with an n** plus -p-p** plus structure as a function of the p** plus layer parameters is investigated experimentally for the case of illumination from the isotypic p** plus -p junction side.
In the present paper, the current-voltage equations are derived for a photovoltaic cell with a n(+)-p-p(+) heterojunction, both for illumination of the isotopic junction and for simultaneous illumination of the isotopic and p-n junctions. The influence of the base and p(+) layer parameters on the performance of the cell is studied, and some experim...
(For abstract see issue 22, p. 4179, Accession no. A79-49179)
The results of a theoretical and experimental analysis of the dependence of the fundamental operation parameters of photoconverters made of high-resistance silicon (the photo-emf, the short-circuit current, and the spectral distribution of the photosensitivity) on the thickness of the doped layer and the i-layer, the charge-carrier diffusion length...
Experimental measurements of the angular dependence of short-circuit current and load current of Si and GaAs photocells are discussed. It is shown that anomalous angular sensitivity behavior in the region of large optical incidence angles for Si cells with end surface exposed to illumination can be explained by the contribution of the end surfaces...
The effect of solar cell parameters, such as the successive resistance R//s, shunt resistance R//s//h of the reverse current I, and of the preexponential multiplier A, on the course of the loading part of the current-voltage characteristic in the working region is considered. A method of determination of these parameters relying on measurements of...
The way in which such photoconverter parameters as the series resistance R/sub s/, the shunt resistance R/sub sh/, the reverse current I/sub r/, and the preexponential factor A affect the shape of the load segment of the current-voltage characteristic in the working region is considered. A method is given for determining these parameters on the bas...
Methods of determination of the diffusion length of nonbasic carriers (L) in the base of a thin silicon solar cell by its spectral sensitivity are considered. Graphs are presented which permit determination of L by the coefficient of carrier collection at long wave illumination (0. 95 and 1. 0 mu m) and by the solar cell thickness. It is shown that...
An analytic-experimental method based on the use of statistical
simulation is used to determine the operational values of the electrical
parameters of solar batteries. The method, by proper selection of the
radiation intensity of the solar simulator, allows the supression of the
error associated with the failure of the spectral and angular
characte...
An analytic-experimental method based on the use of statistical
simulation is used to determine the operational values of the electrical
parameters of solar batteries. The method, by proper selection of the
radiation intensity of the solar simulator, allows the supression of the
error associated with the failure of the spectral and angular
characte...
An analytic-experimental method based on the use of statistical simulation is used to determine the operational values of the electrical parameters of solar batteries. The method, by proper selection of the radiation intensity of the solar simulator, allows the supression of the error associated with the failure of the spectral and angular characte...
(Previously cited in issue 14, p. 2418, Accession no. A77-33427)
The present article presents calculations of the fluxes of the direct solar radiation and the solar radiation reflected from the earth, the radiation being incident on panels of solar batteries mounted on an artificial satellite of the earth. Various orientations of the solar batteries are considered. A possible increase in the power of solar batte...
Computations of the direct and earth-reflected solar radiation fluxes reaching the panels of solar batteries (SP) mounted on an artificial earth satellite are presented. Different modes of SP orientation are considered. An estimate is made to intensify SP power using radiation reflected from earth on two-sided SP.
The paper studies the spectral distribution of the collection
coefficient of a silicon solar cell illuminated at different times from
the front and back sides. The dependence of the short-circuit current on
cell-thickness is calculated during illumination from each of the two
sides separately. It is shown that reduction in cell-thickness with the
s...
The spectral characteristics of a thin silicon photoconverter under separate illumination of the two sides are discussed. A calculation is given of the short-circuit current of the photoconverter as a function of thickness under illumination by solar radiation on each side. Experimental data are reproduced.
It is shown that the photoelectric characteristics of solar cells made of high resistivity silicon should be practically independent of resistivity p of the initial material up to p equals p//i provided two conditions are met: potential barriers should be present on both sides so that the cells have n** minus -p-p** plus or n** minus -n-p** plus st...
Measurements of the current-voltage characteristics and photo emf in
photoelectric converters made of B and P-doped highresistance silicon and
containing p-i-n structures are presented. The high photo emf and current-
voltage characteristics with nearly rectangular effective sections suggest the
possibility of the creation of highly efficient en...
Not Available Bibtex entry for this abstract Preferred format for this abstract (see Preferences) Find Similar Abstracts: Use: Authors Title Keywords (in text query field) Return: Query Results Return items starting with number Query Form Database: Astronomy Physics arXiv e-prints
The effect of such parameters of a photoelectric converter as sequential resistance, shunt resistance, inverse current, and the pre-exponential multiplier on the behavior of the load part of the volt-ampere characteristic in the working region is studied. A method is presented for determining these parameters, based on measurements of short-circuit...
Citations
... The first space applications of bPV technology in the world could date from a space station named Salut-3 in 1974 [94]. Bifacial n + -p-p + contributed to a giant increase in electricity production, up to 34%, which led to the installation of bPV arrays on Salut-5 space station launched in 1976 [95]. ...
... Also in 1970, in Russia the first BSF cell was actually a bifacial cell, which was patented by Bordin et al [BO1]. Later, the first experimental results were published together with a theoretical explanation of the role of the BSF in suppressing surface recombination [BO2]. Fossum and Burges [FOS], increasing the efficiency considerably. ...
