Registration Number
0219U003426,
0116U004751
, R & D reports
Title
Study of electron-vibrational processes in composites and nanosystems promising for solar energy, low power-consuming light sources and medicine
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Head
Yashchuk Valerij Mykolayovych, Доктор фізико-математичних наук
Registration Date
25-02-2019
Organization
Taras Shevchenko Kiev University
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The results of researches of electronic processes in composites promising for solar power engineering have been analyzed, where the design of luminescent transformers has been made, which make it possible to use solar radiation outside the spectral sensitivity zone of photovoltaic converters; Results of design and research of light-emitting layers for low-power light sources (OLED). Combined model approaches are used to describe the electronic processes (in particular, models of random exciton wanderings, the connection between the characteristics of the structure of impurity molecules and their quantum yields was studied, and the design of light emitting molecules with high quantum yields was studied, and organic layers with luminescence spectra close to the "white" »Light (CIE 0.33, 0.33, CRI> 50). The phenomenon of TADF was used to increase the light efficiency of the emitting layers. Conditions and mechanisms of excitation of surface plasmons in specially created nanosystems are considered and investigated. In order to determine the effectiveness of plasmonic amplification of electronic processes, 2D layered nanostructures were investigated. Excited collective surface plasmon modes with different orientation of the dipole moment relative to the layer. The existence of a dominant interaction of dipole moments for a mode with perpendicular orientation of the dipole moment is established. Non-monotonic dependences of extinction spectra and PL in NA Au-C60-Al were recorded. It is shown that laminar planar metal-dielectric NS can be used to change the plasmon amplification factor of optical processes in certain components of nanophotonic devices. An increase in the relative intensity of the photocurrent in the region of the surface plasmon resonance (PPR) in Au is observed, which is due to the enhancement of the generation of carriers in the near field of surface plasmons, which is promising for solar energy.5481
Product Description
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Єщенко О.А.
Азовський В.
Білий М.М.
Башмакова Н.В.
Березовська Н.І.
Дегода В.Я.
Дорошенко І.Ю.
Колодка Р.С.
Косач В.В.
Кутовий С.Ю.
Лосицький М.Ю.
Мягченко Ю.О.
Навозенко О.М.
Науменко А.П.
Подуст Г.П.
Становий О.П.
Харченко Р.А.
Яхненко М.С.
Ящук В.М.
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2020-04-02
