Photoelectrochemical properties of WO3 films prepared by hydrothermal synthesis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F25%3A00605318" target="_blank" >RIV/61388955:_____/25:00605318 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/25:43929276

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1010603024007950?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1010603024007950?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jphotochem.2024.116251" target="_blank" >10.1016/j.jphotochem.2024.116251</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photoelectrochemical properties of WO3 films prepared by hydrothermal synthesis

Popis výsledku v původním jazyce

WO3 thin films were synthesized on FTO (fluorine doped SnO2 on glass) by the hydrothermal method at 180 °C using different deposition times and subsequently annealed at 350 °C and 550 °C in air. The results of XRD and Raman showed complete phase transformation from WO3 hydrate into γ-monoclinic WO3 after annealing at 550 °C. SEM analysis showed significant effects of deposition time and annealing on the surface morphology of the WO3 thin films. WO3 films were examined by the Scotch tape test and showed superior adhesion for samples synthetized for 2 h compared with samples synthesized for 15 h. The photoelectrochemical properties of the WO3 samples were measured. The highest photocurrent density of ∼1.9 mA/cm2 (E = 1.4 V vs. Ag/AgCl, 369 nm LED, irradiance 100 W/m2), IPCE = 0.69 at 369 nm, and 2 mA/cm2 under simulated solar irradiation (AM1.5) was achieved for a layer thickness of 3.5 μm.

Název v anglickém jazyce

Photoelectrochemical properties of WO3 films prepared by hydrothermal synthesis

Popis výsledku anglicky

WO3 thin films were synthesized on FTO (fluorine doped SnO2 on glass) by the hydrothermal method at 180 °C using different deposition times and subsequently annealed at 350 °C and 550 °C in air. The results of XRD and Raman showed complete phase transformation from WO3 hydrate into γ-monoclinic WO3 after annealing at 550 °C. SEM analysis showed significant effects of deposition time and annealing on the surface morphology of the WO3 thin films. WO3 films were examined by the Scotch tape test and showed superior adhesion for samples synthetized for 2 h compared with samples synthesized for 15 h. The photoelectrochemical properties of the WO3 samples were measured. The highest photocurrent density of ∼1.9 mA/cm2 (E = 1.4 V vs. Ag/AgCl, 369 nm LED, irradiance 100 W/m2), IPCE = 0.69 at 369 nm, and 2 mA/cm2 under simulated solar irradiation (AM1.5) was achieved for a layer thickness of 3.5 μm.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Photochemistry and Photobiology A-Chemistry

ISSN

1010-6030

e-ISSN

1873-2666

Svazek periodika

463

Číslo periodika v rámci svazku

JUN 2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

116251

Kód UT WoS článku

001422497200001

EID výsledku v databázi Scopus

2-s2.0-85216590655