Deposition of double-layered TiO thin films with porosity-dependent photoelectrochemical activity

Timur Atabaev

Abstract

Porous TiO thin films with a double-layered structure were successfully prepared using a conventional spin-coating deposition method. A range of characterization techniques, such as scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and photoluminescence were
employed to assess the morphology, structural and optical properties of prepared TiO films. Photoelectrochemical (PEC) measurement tests revealed that prepared double-layered TiO thin films exhibitporosity-dependent photocatalytic activity. For example, TiO films with optimized porous structure
demonstrated an increase in photocurrent density by a factor of ~ 2.23 (to 141.7 μA/cm2 ) and photoconversion efficiency improvement by a factor of ~ 2.14 as compared to non-porous double-layered TiO reference films. Possible mechanisms responsible for these experimental observations are proposed, discussed, and validated experimentally.

Original language	English
Pages	3977881
Publication status	Published - Dec 5 2023
Event	2023 MRS Fall Meeting & Exhibit - Boston, United States Duration: Nov 26 2023 → Dec 7 2023 https://www.mrs.org/meetings-events/fall-meetings-exhibits/2023-mrs-fall-meeting

Conference

Conference	2023 MRS Fall Meeting & Exhibit
Country/Territory	United States
City	Boston
Period	11/26/23 → 12/7/23
Internet address	https://www.mrs.org/meetings-events/fall-meetings-exhibits/2023-mrs-fall-meeting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

TiO2 film
Thin film
Porous film
Photoelectrochemical activity
Photoelectrodes

ASJC Scopus subject areas

General Materials Science

Cite this

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title = "Deposition of double-layered TiO thin films with porosity-dependent photoelectrochemical activity",

abstract = "Porous TiO thin films with a double-layered structure were successfully prepared using a conventional spin-coating deposition method. A range of characterization techniques, such as scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and photoluminescence were employed to assess the morphology, structural and optical properties of prepared TiO films. Photoelectrochemical (PEC) measurement tests revealed that prepared double-layered TiO thin films exhibitporosity-dependent photocatalytic activity. For example, TiO films with optimized porous structure demonstrated an increase in photocurrent density by a factor of \textasciitilde{} 2.23 (to 141.7 μA/cm2 ) and photoconversion efficiency improvement by a factor of \textasciitilde{} 2.14 as compared to non-porous double-layered TiO reference films. Possible mechanisms responsible for these experimental observations are proposed, discussed, and validated experimentally.",

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author = "Timur Atabaev",

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pages = "3977881",

note = "2023 MRS Fall Meeting \& Exhibit ; Conference date: 26-11-2023 Through 07-12-2023",

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TY - CONF

T1 - Deposition of double-layered TiO thin films with porosity-dependent photoelectrochemical activity

AU - Atabaev, Timur

PY - 2023/12/5

Y1 - 2023/12/5

N2 - Porous TiO thin films with a double-layered structure were successfully prepared using a conventional spin-coating deposition method. A range of characterization techniques, such as scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and photoluminescence were employed to assess the morphology, structural and optical properties of prepared TiO films. Photoelectrochemical (PEC) measurement tests revealed that prepared double-layered TiO thin films exhibitporosity-dependent photocatalytic activity. For example, TiO films with optimized porous structure demonstrated an increase in photocurrent density by a factor of ~ 2.23 (to 141.7 μA/cm2 ) and photoconversion efficiency improvement by a factor of ~ 2.14 as compared to non-porous double-layered TiO reference films. Possible mechanisms responsible for these experimental observations are proposed, discussed, and validated experimentally.

AB - Porous TiO thin films with a double-layered structure were successfully prepared using a conventional spin-coating deposition method. A range of characterization techniques, such as scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and photoluminescence were employed to assess the morphology, structural and optical properties of prepared TiO films. Photoelectrochemical (PEC) measurement tests revealed that prepared double-layered TiO thin films exhibitporosity-dependent photocatalytic activity. For example, TiO films with optimized porous structure demonstrated an increase in photocurrent density by a factor of ~ 2.23 (to 141.7 μA/cm2 ) and photoconversion efficiency improvement by a factor of ~ 2.14 as compared to non-porous double-layered TiO reference films. Possible mechanisms responsible for these experimental observations are proposed, discussed, and validated experimentally.

KW - TiO2 film

KW - Thin film

KW - Porous film

KW - Photoelectrochemical activity

KW - Photoelectrodes

M3 - Abstract

SP - 3977881

T2 - 2023 MRS Fall Meeting & Exhibit

Y2 - 26 November 2023 through 7 December 2023

ER -