CdTe vapor phase condensates on (100) Si and glass for solar cells

Self Cite

The authors have developed a simple, cheap and reproducible technology for obtaining thin-film heterostructures based on CdTe with a given surface morphology during vacuum deposition, which contributes to their low cost [1, 2]. The critical dimensions (thicknesses) of individual layers of the heterostructure were substantiated, a simulation was performed and a wide range of optical properties was investigated [3]. It is shown that for the deposited CdS / CdTe heterostructure on glass it is possible to obtain an efficiency of 15.8%. Given that thin films are relatively new systems, their study can offer much wider opportunities for technological improvement of photovoltaic energy converters. According to the analysis of modern literature data, the efficiency can be increased by performing deposition on ITO films and introducing nanoparticles of controlled sizes.

Section: Optical Modelmentioning

confidence: 99%

Section: Simulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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SCAPS modelling of ZnO/CdS/CdTe/CuO photovoltaic heterosystem

Zapukhlyak

Nykyruy

Wisz

et al. 2020

Self Cite

“…Deva etc. 262 10 4 cm -1 ) which are the optimal for solar light collection and makes compound to be an attractive material for solar cell applications [16][17][18][19] which also characterized low manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Electron, phonon, optical and thermodynamic properties of CdTe crystal calculated by DFT

Ільчук

Nykyruy

Kashuba

et al. 2022

Electronic and phonon band structure, thermodynamic and optical properties are studied for the CdTe crystal. We calculated the electron and phonon dispersion at high symmetry directions, density of electron and phonon state, temperature dependence feature of Raman spectra, heat capacity, free energy, entropy, enthalpy and Debay temperature estimated with the generalized gradient approximation (GGA). A Perdew–Burke–Ernzerhof functional (PBE) was utilized. To study the optical properties was use a complex dielectric function ε(ħω). All of the calculated parameters correlate well with the known experimental data.

“…The relatively wide band gap (Eg -1.50 eV) and direct band nature make it possible to obtain high efficiency devices in the high temperature region and are also optimal for converting solar energy into electrical energy [3,4]. At the same time, the issue of obtaining efficient CdTe-based emitting light devices and the prospects for the use of CdTe-based thin films for photovoltaics due to their high efficiency and low cost remains topical [5]. It should be noted that this compound is one of the II-VI compounds in which the type of conductivity can be varied.…”

Section: Introductionmentioning

confidence: 99%

Light emitters based on CdTe doped with isovalent impurities

Mazur

Slyotov

et al. 2022

The problems of developing light-emitting structures based on CdTe with an extended range of operating temperatures and radiation-resistant parameters are studied. A technique for obtaining heterostructures has been mastered, technological modes of isovalent substitution have been determined, and radiation sources with a high quantum efficiency η = 7–20% at 300 K in a wide spectral region have been obtained. The design of devices has been developed and light emitters based on CdTe, whose radiation is determined by the interband recombination of free charge carriers and the dominant annihilation of bound excitons, have been fabricated by doping with isovalent impurities Mg, Ca.