Surface-enhanced Raman spectroscopy effective substrates based on silver particle layers: Analytical applications, spectral reproducibility, benefits, and future developments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F25%3A73627005" target="_blank" >RIV/61989592:15310/25:73627005 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/25:00140533

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0925346724017257" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925346724017257</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2024.116542" target="_blank" >10.1016/j.optmat.2024.116542</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Surface-enhanced Raman spectroscopy effective substrates based on silver particle layers: Analytical applications, spectral reproducibility, benefits, and future developments

Popis výsledku v původním jazyce

This work focuses on the modification of surfaces of Al2O3 and cellulose impregnated by polyethyleneimine to increase the deposition effectiveness, size, and morphological characteristics of the deposited silver particles. Modifications of substrates were done by polydopamine layer formation on substrate surfaces or by surface activation through immersion in SnCl2 solution. The silver particle layers were done by deposition from a liquid phase using ultrasound-assisted reduction of silver ammonia complex ([Ag(NH3)2]+) by maltose or glucose which served as reductants. Prepared layers were in some cases subsequently re-crystallized by NaCl solution which led to formation of the larger silver particles or aggregates. The influence of substrate surface modification and re-crystallization of the silver particles on SERS efficiency was evaluated by enhancement factor calculations. Their values reached up to 1.4·106 for 780 nm and 8.1·105 for 532 nm lasers.

Název v anglickém jazyce

Surface-enhanced Raman spectroscopy effective substrates based on silver particle layers: Analytical applications, spectral reproducibility, benefits, and future developments

Popis výsledku anglicky

This work focuses on the modification of surfaces of Al2O3 and cellulose impregnated by polyethyleneimine to increase the deposition effectiveness, size, and morphological characteristics of the deposited silver particles. Modifications of substrates were done by polydopamine layer formation on substrate surfaces or by surface activation through immersion in SnCl2 solution. The silver particle layers were done by deposition from a liquid phase using ultrasound-assisted reduction of silver ammonia complex ([Ag(NH3)2]+) by maltose or glucose which served as reductants. Prepared layers were in some cases subsequently re-crystallized by NaCl solution which led to formation of the larger silver particles or aggregates. The influence of substrate surface modification and re-crystallization of the silver particles on SERS efficiency was evaluated by enhancement factor calculations. Their values reached up to 1.4·106 for 780 nm and 8.1·105 for 532 nm lasers.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

OPTICAL MATERIALS

ISSN

0925-3467

e-ISSN

1873-1252

Svazek periodika

159

Číslo periodika v rámci svazku

FEB

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

"116542-1"-"116542-12"

Kód UT WoS článku

001385950600001

EID výsledku v databázi Scopus

2-s2.0-85211355632