Photoluminescence and paramagnetic defect formation in PMMA-C<Subscript>60</Subscript> fullerene nanocomposite期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Photoluminescence and paramagnetic defect formation in PMMA-C60 fullerene nanocomposite

Authors:	A. A. Konchits authors-affiliations__indexes u-inline-list" data-role=" AuthorsIndexes" >,S. P. Kolesnik authors-affiliations__indexes u-inline-list" data-role=" AuthorsIndexes" >,V. S. Efanov authors-affiliations__indexes u-inline-list" data-role=" AuthorsIndexes" >,I. B. Yanchuk authors-affiliations__indexes u-inline-list" data-role=" AuthorsIndexes" >,A. L. Pushkarchuk authors-affiliations__indexes u-inline-list" data-role=" AuthorsIndexes" >,A. O. Pozdnyakov authors-affiliations__indexes u-inline-list" data-role=" AuthorsIndexes" >

Affiliation:	1.Lashkarev Institute of Semiconductor Physics,National Academy of Sciences of Ukraine,Kiev,Ukraine;2.Institute of Physical Organic Chemistry,National Academy of Sciences of Belarus,Minsk,Belarus;3.Institute for Problems in Mechanical Engineering,Russian Academy of Sciences,St. Petersburg,Russia;4.Ioffe Physical Technical Institute,Russian Academy of Sciences,St. Petersburg,Russia

Abstract:	The dynamics of thermoinduced defect formation and the photoluminescent properties of a poly(methyl methacrylate)-fullerene (PMMA-C₆₀) composite have been studied using a combination of spectroscopic techniques. Quantum-chemical calculations with implicit allowance for the presence of oxygen have been performed for a MMA-C₆₀ model complex. The generation of defects and the quenching of photoluminescence, which take place in the same temperature interval where the macromolecules exhibit low-temperature depolymerization in the presence of C₆₀, can be precursors of the depolymerization process.

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