Titania Thin Film Coated Glass for Simultaneous Ammonia Degradation and UV Light Blocking Layer in Photovoltaics

Juraić, Krunoslav; Bohač, Mario; Plaisier, Jasper Rikkert; Hodžic, Aden; Dubček, Pavo; Gracin, Davor; Grčić, Ivana; Marčec, Jan; Čižmar, Tihana; Gajović, Andreja (2022) Titania Thin Film Coated Glass for Simultaneous Ammonia Degradation and UV Light Blocking Layer in Photovoltaics. Sustainability, 14 . ISSN 2071-1050

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Official URL: https://www.mdpi.com/2071-1050/14/17/10970

Abstract

In this work, we have investigated the potential dual application of TiO2 thin films as a photocatalyst for ammonia degradation, and as a UV light blocking layer in c-Si photovoltaics. For this purpose, we deposited a series of TiO2 thin films on a glass substrate by reactive magnetron sputtering and analysed the influence of the deposition parameters (O2/Ar working gas content and pressure) on the structural, optical and photocatalytic properties. All samples are nanocrystalline anatase TiO2 and have a uniform surface (RMS roughness < 5 nm) in a wide range of magnetron sputtering deposition parameters. They are transparent in the Vis/NIR spectral range and strongly absorb light in the UV range above the optical bandgap energy (3.3 eV), which makes them suitable for the use as UV blocking layers and photocatalysts. The photocatalytic properties were studied in a mini-photocatalytic wind tunnel reactor by examining ammonia degradation. A kinetic study was performed to estimate the reaction rate constants for all samples. The intrinsic reaction rate constant confirmed the crucial role of surface morphology in ammonia decomposition efficiency.

Item Type:

Article

Uncontrolled Keywords:

titanium dioxide ; thin films ; reactive magnetron sputtering ; optical properties ; photocatalysis ; ammonia degradation

Subjects:

NATURAL SCIENCES > Physics

Divisions:

Division of Materials Physics

Projects:

Project title	Project leader	Project code	Project type
Unaprijeđenje solarnih ćelija i modula kroz istraživanje i razvoj	Juraić, Krunoslav	KK.01.2.1.01.0115	EK
Nanokompoziti s perovskitima za fotovoltaike, fotokatalizu i senzoriku	Gajović, Andreja	IP-2018-01-5246	HRZZ
Reciklirana guma & solarna fotokataliza: ekološka inovacija za pasivnu zaštitu zraka i zdravlja-	Mladen Božičević	KK.01.1.1.07.0058	VLASTITA-SREDSTVA