Registration Number
0220U101543,
0119U100308
, R & D reports
Title
Principles of control of optical and photoelectric properties of hybrid metal-semiconductor films and nanodiode-like structures.
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Head
Kondratenko Sergii Viktorovych, Доктор фізико-математичних наук
Registration Date
12-02-2020
Organization
Taras Shevchenko National University of Kyiv
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The object of the study is the interaction of electromagnetic radiation of the optical range with hybrid metal-semiconductor nanostructured films containing nanosized particles Ge, SiGe, GeSn, (In, Ga) As, Au, Ag, Cu; photoelectric converters based on InGaAs / GaAs, SiGe / Si / GeSn / Ge / Si, PEDOT: PSS / Si heterostructures.
The purpose of the study is to develop the scientific basis for obtaining hybrid nanostructured films with semiconductor and metal components with a predetermined set of optical and photoelectric properties, as well as to determine the suitability and feasibility of using these objects in optoelectronics and photovoltaics.
Research methods - spectral and polygonal ellipsometry, photoluminescence spectroscopy, photocurrent, photoelectrons, non-stationary spectroscopy of deep levels, thermo-stimulated conductivity, atomic force microscopy, electron microscopy, X-ray diffraction, X-ray diffractometry characteristics, quantum-mechanical modeling of band structure and optical constants of thin films.
It is established that the width of the band gap GeSn at the Γ- and L-points of the Brillouin zone decreases with increasing Sn content, and deformations lead to an increase in the Sn concentration at which the transition to the straight-gap material occurs. New electronic trap levels have been identified and identified and the effect of defects on kinetic properties and recombination of charge carriers in InAs / InGaAs structures and pin GaAs diodes with InAs quantum dots has been shown for the first time.
Product Description
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Datsenko Oleksandr I.
Derenko Sergiy S.
Dzhagan Volodymyr M.
Zelensʹkyy Sergiy E.
Kovanzhi Petro O.
Kolesnyk Oleksandr S.
Kondratenko Sergii V.
Makarenko Oleksiy V.
Nedbayeva Ludmyla V.
Poperenko Leonid V.
Prorok Vasyl V.
Rozuvan Stanislav G.
Staschuk Vasyl Stepanovych
Stukalenko Viktoriya V.
Sharapa Andriy I.
Yurgelevych Iryna V.
Yablochkov Sergiy M.
Yablochkova Kateryna S.
Yampolsky Andriy L.
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2020-04-02
