Total number
Full text
Total number
Full text
Number of local repositories
Full text
0219U000508,
0118U001101
,
New approaches to the production of optical glass ceramic materials based on hybrid micro / nanostructured oxide-carbon composites
Nedilko Sergii Gerasymovych, Доктор фізико-математичних наук
04-02-2019
Taras Shevchenko Kiev University
The object of the study is the processes of transforming the excitation energy into complex optical absorption centers and luminescence of hybrid oxide-based composites. The subject of the study is to find out the role of the microstructure and the chemical composition of hybrid glass-ceramic materials such as oxide, oxide-carbon and oxide-polymer composites in the formation of their optical and luminescent properties. The purpose of the project is to solve a number of fundamental and applied problems in the field of light interactions with nano-structured broadband hybrid composites and optimize their optical properties by forming complex luminescent-active centers. Objectives of the work: 1) to optimize the conditions of synthesis of previously obtained and to identify the peculiarities and patterns of formation as well as to determine the structure of new oxide materials doped with rare-earth ions as perspective luminescent crystalline components of transparent hybrid oxide-carbon glass-ceramic composites; 2) to modify the properties of luminescent light converters toward of increasing their efficiency of converting the light of the ultraviolet, violet and blue regions in the luminescent radiation of the yellow-red region and increasing the intensity of the luminescence (to form, based on RE ions, complex optical absorption and luminescence centers by introducing in the latter: - cations: alkaline, alkaline earth and mercury-like elements; - anions: fluorine; 3) to optimize ways of controlling the ratio of the crystalline and amorphous components of glass-ceramic composites and the concentration of complex centers; 4) to produce model composites based on polymer matrices with oxide and carbon components and investigate their properties (structural, morphological, optical, luminescent) 5) to find out the characteristics of hybrid oxide glass-ceramic oxide-carbon composites with complex absorption centers and PL, capable of increasing the efficiency of white LEDs and silicon solar cells and suitable for their coating on the surface by methods of 3D printing.
Борисюк Віктор Іванович
Кондратенко Сергій Вікторович
Неділько Сергій Герасимович
Теребіленко Катерина Володимирівна
Теселько Петро Олексійович
Хижний Юрій Анатолійович
Чорній Віталій Петрович
Чукова Оксана Володимирівна,
Щербацький Василь Петрович
Ящук Василь Павлович
2020-04-02
Updated: 2025-12-07
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