Shape dependent EMA model of nanostructured anisotropic materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F19%3A10242930" target="_blank" >RIV/61989100:27230/19:10242930 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27640/19:10242930

Výsledek na webu

<a href="https://www.mdpi.com/2079-4991/9/10/1380/pdf" target="_blank" >https://www.mdpi.com/2079-4991/9/10/1380/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/nano9101380" target="_blank" >10.3390/nano9101380</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Shape dependent EMA model of nanostructured anisotropic materials

Popis výsledku v původním jazyce

Heterogeneous nanostructures containing nanoparticles of various sizes and shapes have attracted significant attention in the development of nano-biosensors. Especially, plasmonic properties of such materials are advantageously exploited for the detection of biological and chemical substances. Since these media exhibit optical anisotropy, a valid homogenization procedure must be able to describe appropriately the relationship between the geometry of the inclusions and the nature of local field modes. We present a model approach for extension of the effective medium approximation (EMA) and its application to anisotropic nanostructures. The proposed model is based on a &quot;strong-couple-dipole&quot; (SCD) method including a volume-integral correction term in a Green tensor that enables to obtain more accurate representation of polarizability tensor. Derived depolarization factors for discs and bi-cone particles are compared with the early known shapes (spheroids, cylinders) and applied to nanostructures composed of the Fe or Au nanodots in polyacrylate. (C) 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Název v anglickém jazyce

Shape dependent EMA model of nanostructured anisotropic materials

Popis výsledku anglicky

Heterogeneous nanostructures containing nanoparticles of various sizes and shapes have attracted significant attention in the development of nano-biosensors. Especially, plasmonic properties of such materials are advantageously exploited for the detection of biological and chemical substances. Since these media exhibit optical anisotropy, a valid homogenization procedure must be able to describe appropriately the relationship between the geometry of the inclusions and the nature of local field modes. We present a model approach for extension of the effective medium approximation (EMA) and its application to anisotropic nanostructures. The proposed model is based on a &quot;strong-couple-dipole&quot; (SCD) method including a volume-integral correction term in a Green tensor that enables to obtain more accurate representation of polarizability tensor. Derived depolarization factors for discs and bi-cone particles are compared with the early known shapes (spheroids, cylinders) and applied to nanostructures composed of the Fe or Au nanodots in polyacrylate. (C) 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21000 - Nano-technology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nanomaterials

ISSN

2079-4991

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000495666800035

EID výsledku v databázi Scopus

2-s2.0-85073783768