Registration Number
0225U002974,
(0123U102126)
, R & D reports
Title
Fundamentals of development of new polymer composition media for information technology and clean energy technologies with predefined physico-chemical properties
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Розробка ГРС з керованими властивостями та модельних ФПК з властивостями фотоелектричних перетворювачів, а також люмінесцентних середовищ.
Head
Studzynskyi Serhii L., Доктор хімічних наук
Registration Date
27-04-2025
Organization
Taras Shevchenko National University of Kyiv
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Development and creation of multifunctional photosensitive film polymeric composites of different architecture and composition, as effective functional molecular photonics materials, in particular, optical sensor and holographic systems materials for high technologies, medicine and clean energy, as well as the investigation of their spectral, photoelectrophysical, information properties and development of methods optimization of these properties through the structural-functional design of their components molecules; establishing a correlation between the structure of molecules and the macroscopic properties of the system.
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The highly efficient multifunctional photoconductive reversible holographic recording media (HRM) with a wide spectral range of photosensitivity, suitable for both photothermoplastic and polarization holography were created on the basis of oligomeric polyhedral silsesquioxanes, containing azo fragments of the 2-methyl-4-[(4-phenyldiazenylphenyl)diazenyl]phenol doped with anionic polymethine dye. These media have photovoltaic properties and the type of their photoconductivity and the sign of the photovoltaic response can be controlled by changing the excitation light wavelength. The nature of the post-holographic recording (PHR) effect, which was detected in these HRM, was investigated. It is shown that under the polarization recording conditions in such HRM it is possible to control the nature of the formed diffraction grating - from a purely polarization one (practically without surface topology) to a grating, the formation of which occurs mainly due to the geometric HRM film surface relief formation, depending on the recording mode. Based on azothiazole-containing methacrylic copolymers the novel efficient photoconductive HRM for polarization holography with the PHR-effect and with controlled formed grating character (by copolymers composition and microtacticity change) have been developed. New multi-controlled photochromic merocyanine- and squaraine-containing oligomeric HRM with electro-controlled spectral range of photosensitivity have been created.
Product Description
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Davydenko Iryna I.
Kuranda Mykola M.
Mokrynska Olena V.
Pavlov Valerii O.
Petrusenko Svitlana R.
Povorozniuk Volodymyr В.
Savchenko Iryna O.
Smokal Vitalii O.
Chupryna Mykola H.
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2025-04-27
