PVP-assisted thermal annealing of thin Au layer for creation of effective and reproducible SERS substrates

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43919671" target="_blank" >RIV/60461373:22310/19:43919671 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.nanoso.2018.10.001" target="_blank" >https://doi.org/10.1016/j.nanoso.2018.10.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nanoso.2018.10.001" target="_blank" >10.1016/j.nanoso.2018.10.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

PVP-assisted thermal annealing of thin Au layer for creation of effective and reproducible SERS substrates

Popis výsledku v původním jazyce

Creation of SERS substrate with the large active area and homogeneous distribution of hot spots is now one of the most important tasks in the field of SERS practical implementation. This problem has been solved by various techniques, but the most applicable of them are expensive due to highly technical nature. In this work, a simple alternative approach based on thermal annealing of sputtered Au layer has been proposed. Usually, the thermal annealing of the thin Au layer leads to the formation of gold clusters array with high plasmon efficiency but with too wide size distribution and highly disordered arrangement. To overcome this drawback the previous soaking of Au layer in the poly(vinylpyrrolidone) (PVP) solution was proposed, with the aim to affect clusters formation and achieve the more homogeneous distribution of created hot spots array. Annealed Au and Au-PVP thin layers were characterized by AFM, XRD, XPS, UV–Vis and Raman spectroscopy techniques. Present results indicate that the PVP treatment before thermal treatment significantly affect the growth of the clusters and provide the perspective way for increasing of SERS efficiency and reproducibility. © 2018

Název v anglickém jazyce

PVP-assisted thermal annealing of thin Au layer for creation of effective and reproducible SERS substrates

Popis výsledku anglicky

Creation of SERS substrate with the large active area and homogeneous distribution of hot spots is now one of the most important tasks in the field of SERS practical implementation. This problem has been solved by various techniques, but the most applicable of them are expensive due to highly technical nature. In this work, a simple alternative approach based on thermal annealing of sputtered Au layer has been proposed. Usually, the thermal annealing of the thin Au layer leads to the formation of gold clusters array with high plasmon efficiency but with too wide size distribution and highly disordered arrangement. To overcome this drawback the previous soaking of Au layer in the poly(vinylpyrrolidone) (PVP) solution was proposed, with the aim to affect clusters formation and achieve the more homogeneous distribution of created hot spots array. Annealed Au and Au-PVP thin layers were characterized by AFM, XRD, XPS, UV–Vis and Raman spectroscopy techniques. Present results indicate that the PVP treatment before thermal treatment significantly affect the growth of the clusters and provide the perspective way for increasing of SERS efficiency and reproducibility. © 2018

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Nano-Structures and Nano-Objects

ISSN

2352-507X

e-ISSN

—

Svazek periodika

17

Číslo periodika v rámci svazku

February 2019

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

77-83

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85058023822