Cascade Solar Cells Based on GaP/Si/Ge Nanoheterostructures

Lunin, L. S.; Lunina, M. L.; Pashchenko, A. S.; Alfimova, D. L.; Arustamyan, D. A.; Kazakova, A. E.

doi:10.1134/s1063785019030313

Cited by 6 publications

(4 citation statements)

References 6 publications

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“…However, the theoretical maximum efficiency could also not be achieved. One way to increase the effectiveness of SC is to build tandem (cascading) structures, an example of which is described in [8], as well as double-sided structures in which two or more base layers of different E g (the width of the forbidden zone) are used, but such instrument structures were not investigated when using cadmium telluride. Such an approach makes it possible to effectively convert incident solar radiation over a wide spectral range.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Such an approach makes it possible to effectively convert incident solar radiation over a wide spectral range. Paper [9] proposed, with respect to the size of the forbidden zone, building the tandem structures by using the film solar cells based on CdTe and CuInSe 2 since it is known that E g for CdTe is 1.46 eV [4] and E g for CuInSe 2 -1.10 eV [8]. However, the cited works did not perform experimental studies of such tandem structures.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Investigating an alternative electricity supply system for preventing emergencies under conditions of limited capacity

Burmenko

Deyneko

Hrebtsova³

et al. 2020

EEJET

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Investigating an alternative electricity supply system for preventing emergencies under conditions of limited capacity

Burmenko

Deyneko

Hrebtsova³

et al. 2020

EEJET

View full text Add to dashboard Cite

show abstract

“…The investigation of electrical, optical, and galvanomagnetic properties of thin conductive layers are primarily associated with the rapid development of micro-, nano-and optoelectronics in recent decades. Thin layers are used as the basis of all semiconductor devices and integrated circuits, are employed to create multilayer solar cells, in present time active researches and developments are underway to increase their efficiency [1][2][3][4][5]. There are many works devoted to applying thin layers in photonics and nanophotonics [6,7], microwave electronics [8,9], etc.…”

Section: Introductionmentioning

confidence: 99%

High-frequency Magnetotransport in a thin Metal Layer with Variable Specularity Coefficients of its Boundaries

2020

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A theoretical model of the conductivity of a thin metal layer placed in a longitudinal constant magnetic and alternative electric field is constructed, taking into account the diffuse-mirror boundary conditions. An analytical expression is obtained for the integral conductivity as a function of dimensionless parameters: layer thickness, electric field frequency, magnetic field induction and surface specularity coefficients. The dependences of the layer conductivity on the aforenamed parameters are analyzed. The results are compared with known experimental data.

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“…This circumstance is associated with energy losses due to the design features of photoelectric converters and the features of photoelectric processes that occur in the volume of the instrument structure when irradiated with sunlight [1,2]. A radical way to increase the efficiency of solar cells is the formation of tandem (cascade) [3] and two-sided sensitive structures that use two or more base layers with different E g (band gap). This approach allows to effectively convert incident solar radiation in a wide spectral range.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Photoelectric Converters With a Base Cadmium Telluride Layer With a Decrease in Its Thickness for Tandem and Two-Sided Sensitive Instrument Structures

Deyneko

Kryvulkin

Matiushenko

et al. 2019

EUREKA: Physics and Engineering

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Photovoltaic cells with a base layer of cadmium telluride with a decrease in its thickness are studied. It is known that the widespread use of photovoltaic converters is constrained by their high price in the case of highly efficient instrument structures, or low efficiency. The creation of tandem and two-sided sensitive photoelectric converters will reduce their cost while increasing their efficiency. However, to create tandem and two-sided sensitive photoelectric converters, the necessary conditions are the use of transparent contacts and a decrease in the thickness of the base layer for efficient absorption of incident radiation by the converter, which is lower. In the research process, it was found that reducing the thickness of the base layer to 1 μm allows to increase the efficiency of the photoelectric transducer during irradiation from the back. An increase in the efficiency of the photoelectric converter occurs due to a decrease in the distance from the generation region of nonequilibrium charge carriers in the region of separation. If the thickness of the base layer is less than 1 μm, then regardless of which side of the irradiation is carried out, a decrease in the efficiency of the instrument structure is observed. Increase in the efficiency of photoconverters is associated with an increase in the negative influence of recombination processes on the back contact, a decrease in the number of charge carriers generated due to incomplete absorption of incident radiation, and a decrease in the volume of the built-in field of the separating barrier when it overlaps with the depletion region of the back contact. ITO/CdS/CdTe/Cu/ITO SCs with a base layer thickness of 1 μm demonstrates degradation stability. The highest value of efficiency in the case of illumination from the front side 8.1 % and with illumination from the back side 3.8 % received after a year of operation of the photovoltaic converter.

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Cascade Solar Cells Based on GaP/Si/Ge Nanoheterostructures

Cited by 6 publications

References 6 publications

Investigating an alternative electricity supply system for preventing emergencies under conditions of limited capacity

Investigating an alternative electricity supply system for preventing emergencies under conditions of limited capacity

High-frequency Magnetotransport in a thin Metal Layer with Variable Specularity Coefficients of its Boundaries

Investigation of Photoelectric Converters With a Base Cadmium Telluride Layer With a Decrease in Its Thickness for Tandem and Two-Sided Sensitive Instrument Structures

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