Plasmooptoelectronic tuning of optical properties and SERS response of ordered silver grating by free carrier generation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F15%3A43900168" target="_blank" >RIV/60461373:22310/15:43900168 - isvavai.cz</a>

Alternative codes found

RIV/67985858:_____/15:00457521

Result on the web

<a href="http://pubs.rsc.org/en/content/articlepdf/2015/ra/c5ra16263g" target="_blank" >http://pubs.rsc.org/en/content/articlepdf/2015/ra/c5ra16263g</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c5ra16263g" target="_blank" >10.1039/c5ra16263g</a>

Result language

angličtina

Original language name

Plasmooptoelectronic tuning of optical properties and SERS response of ordered silver grating by free carrier generation

Original language description

Electrical current induced reversible tuning of the optical properties of ordered silver gratings was proposed. Polymer surface was patterned by excimer laser leading to creation of grating. Subsequently, thin silver layer was deposited onto the polymer grating. Prepared structure is capable of supporting surface plasmon polariton excitation and propagation. To introduce an electric current in direction along the features of the grating additional contacts (Au, Ag, Si, Ge, and their combination) were vacuum deposited. Application of the electric voltage leads to the shift of the wavelength position of surface plasmon polariton by several nanometers and to a change of its absolute intensity by up to 30% in regard to its initial value. The observed phenomenon depends strongly on the grating amplitude and contact between the silver grating and the supply electrodes. The strong electric triggering was observed in the case of evaporated silver or gold electrodes. Oppositely, when the semiconductor materials (Ge, Si) were used, no optoelectronic response was observed. The observed optical tuning can be attributed to a change of free electron concentration in the silver grating due to impact ionization of the metal atoms. The observed phenomenon was exploited to modify SERS response of a thin polystyrene layer deposited onto silver grating. Electrically triggered increase and decrease of SERS intensity was found to depend on grating structure and excitation wavelength. The studied phenomenon is dynamic, continuous, reversible and voltage-controlled, and has a broad range of potential applications for example in the field of triggerable plasmon structures.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JJ - Other materials

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

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

Name of the periodical

RSC Advances

ISSN

2046-2069

e-ISSN

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Volume of the periodical

5

Issue of the periodical within the volume

113

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

92869-92877

UT code for WoS article

000364065500007

EID of the result in the Scopus database

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