Synergism of spray-pyrolyzed aliovalent Ga (iii) ions and ZnO nanostructures for selective sensing of hazardous CO gas towards low ppm levels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10491964" target="_blank" >RIV/00216208:11320/24:10491964 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=wG.8LlxWtO" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=wG.8LlxWtO</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.snb.2023.134827" target="_blank" >10.1016/j.snb.2023.134827</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synergism of spray-pyrolyzed aliovalent Ga (iii) ions and ZnO nanostructures for selective sensing of hazardous CO gas towards low ppm levels

Popis výsledku v původním jazyce

Ga-doped ZnO (GZO) nanostructures deposited via low-cost spray pyrolysis process are employed in this study to identify low quantities of carbon monoxide gas. XRD studies reveal the single-phase wurtzite structure of ZnO thin films, thereby confirming the structural stability post-Ga doping. Raman examination discloses the vibrational characteristics and provides some early insights into the existence of defects in the films. The nanograins having well-defined grain boundaries noticed from the inspection of SEM images participate in the gas sensing performance as the site for the active adsorption of CO molecules. The defects, mainly oxygen vacancies responsible for the enhancement in the CO sensing characteristics were confirmed from room temperature photoluminescence (RTPL) spectra and XPS analysis. The CO sensing measurements reveal that 15 wt% GZO exhibited the highest sensing performance of 0.08 towards 1 ppm and 0.41 towards 5 ppm. GZO thin films had response and recovery times that were both extraordinarily quick under 40 s

Název v anglickém jazyce

Synergism of spray-pyrolyzed aliovalent Ga (iii) ions and ZnO nanostructures for selective sensing of hazardous CO gas towards low ppm levels

Popis výsledku anglicky

Ga-doped ZnO (GZO) nanostructures deposited via low-cost spray pyrolysis process are employed in this study to identify low quantities of carbon monoxide gas. XRD studies reveal the single-phase wurtzite structure of ZnO thin films, thereby confirming the structural stability post-Ga doping. Raman examination discloses the vibrational characteristics and provides some early insights into the existence of defects in the films. The nanograins having well-defined grain boundaries noticed from the inspection of SEM images participate in the gas sensing performance as the site for the active adsorption of CO molecules. The defects, mainly oxygen vacancies responsible for the enhancement in the CO sensing characteristics were confirmed from room temperature photoluminescence (RTPL) spectra and XPS analysis. The CO sensing measurements reveal that 15 wt% GZO exhibited the highest sensing performance of 0.08 towards 1 ppm and 0.41 towards 5 ppm. GZO thin films had response and recovery times that were both extraordinarily quick under 40 s

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Sensors and Actuators B: Chemical

ISSN

0925-4005

e-ISSN

1873-3077

Svazek periodika

399

Číslo periodika v rámci svazku

Jan 15

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

134827

Kód UT WoS článku

001111685600001

EID výsledku v databázi Scopus

2-s2.0-85175421899