Experimental manifestations of the correlation between the local structure of silver nanoparticle aggregates and their absorption spectra


Тип публикации: статья из журнала

Год издания: 2007

Идентификатор DOI: 10.1134/S1061933X07020056

Аннотация: Experimental data testifying in favor of the correlation between electrodynamic characteristics of fractal aggregates and the structure of the local environment of particles are discussed. One of the possible variants of the control of local structure of disordered silver nanoparticle aggregates placed into a polymer matrix via a sПоказать полностьюignificant decrease in its volume is proposed and realized. An indirect method for the detection of the variations in the local structure with the use of plasmon absorption spectra is proposed and substantiated. The evolution of local anisotropy of the environment of the particles of loose aggregates during their compaction is studied. Differences in the absorption spectra of silver nanoaggregates in hydrosols with various concentrations of water-soluble polymer that determine the properties of the local structure of aggregates are discussed, these differences being manifested upon the formation of fragments with quasi-ordered arrangement of particles and in the absence of such fragments.

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Выпуск журнала: Vol. 69, Is. 2

Номера страниц: 170-179

ISSN журнала: 1061933X

Место издания: NEW YORK



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