Cathodoluminescence characterization of polystyrene-BaZrO₃ hybrid composites

Cathodoluminescence characterization of polystyrene-BaZrO₃ hybrid composites

Savchyn, V.P. ; Popov, A.I. ; Aksimentyeva, O.I. ; Klym, H. ; Horbenko, Yu.Yu. ; Serga, V. ; Moskina, A. ; Karbovnyk, I.

Тема: Low-Temperature Radiation Effects in Wide Gap Materials

Інший ID: PACS: 78.47.–p, 78.55.–m

URI: http://dspace.nbuv.gov.ua/handle/123456789/129198

Посилання: Cathodoluminescence characterization of polystyrene–BaZrO₃ hybrid composites / V.P. Savchyn, A.I. Popov, O.I. Aksimentyeva, H. Klym, Yu.Yu. Horbenko, V. Serga, A. Moskina, I. Karbovnyk // Физика низких температур. — 2003. — Т. 42, № 7. — С. 760-763. — Бібліогр.: 27 назв. — англ.

Підтримка: A.I. Popov and A. Moskina would like to thank the support of State research program IMIS2, while H. Klym was supported by the Lviv Polytechnic University under Doctoral Program and support via the Project DB/KIBER (No. 0115U000446).

Дата: 2016

Завантажень: 573

Cathodoluminescence characterization of polystyrene-BaZrO₃ hybrid composites

Анотація:

The radiation properties and the electronic structure of hybrid composites based on suspension polystyrene (PS) and nanocrystals of BaZrO₃ (BZO) ( d < 50 nm) have been studied using luminescent spectroscopy and x-ray analysis. A strong cathodoluminescence (CL) in BZO-nanocrystals is observed in temperature range 80–293 K. It is modified in BZO-PS composites: both the low- and a high-energy bands (near 4 eV) appear, together with a significant reduction in the CL intensity. A decrease of the lattice parameter a for BZO phase in the composite and the modification of CL spectra indicate for changes in the nanocrystalline structure induced by the polymer.

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