Тип публикации: статья из журнала
Год издания: 2013
Идентификатор DOI: 10.1134/S1061933X13030083
Ключевые слова: Deposition of metals, Electrical parameter, Experimental conditions, Nonuniform electric field, Ordered structures, Selective deposition, Single-domain structure, Transmission property, Deposition, Electric fields, Mathematical models, Metal nanoparticles, Photoexcitation, Plasmons, Sols, Substrates
Аннотация: A method is proposed for electrostatic functionalization of substrates used to prepare ordered structures composed of closely spaced plasmon-resonant nanoparticles. The method ensures selective deposition of nanoparticles from the bulk of a colloidal system onto the substrates. This method is based on placing a metal nanotemplate oПоказать полностьюf a required configuration at the opposite side of a substrate, with an electric potential being applied to the template. A mathematical model is developed to ensure that the system parameters responsible for the deposition of metal nanoparticles into ordered single-domain structures on the substrate from a bulk sol in a nonuniform electric field generated by the nanotemplate correspond to the real experimental conditions. Since the degree of imperfection of the synthesized chains governs the applicability of these structures to transmission of the optical excitation at the frequency of the surface plasmon of the particles, the dependence of the degree of imperfection on the physicochemical and electrical parameters of the system is studied using the Brownian-dynamics model. The calculations of the spectral and transmission properties of nanowaveguides of this type are exemplified.
Журнал: COLLOID JOURNAL
Выпуск журнала: Vol. 75, Is. 3
Номера страниц: 279-288
ISSN журнала: 1061933X
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER