417626

Highly sensitive TiO2 based photodetector for environmental sensing applications

Article

Last updated: 29 Mar 2025

Subjects

-

Tags

Environments pollution control and abatement technology

Abstract

TiO2 thin films were fabricated using reactive direct current magnetron sputtering for the possible utilization as visible and/or IR-light photodetectors. The structure, chemical composition, morphology, optical and I-V characteristics were examined. X-ray diffraction inferred the existence of body centered tetragonal anatase crystallographic phase oriented around (101) plain. The chemical compositional analysis via EDAX indicated TiO2.1 stoichiometry. Nanoparticle morphology that is uniformly distributed were observed by SEM investigations. High transmittance over the visible and near spectral ranges with optical band gap of 3.29 eV were observed for the TiO2 thin films. The generated light current values at 1 V bias voltage were 0.251, 0.160 and 0.149 µA/cm2 for illumination with light of 440, 540 and 730 nm, respectively. The reported TiO2 based photodetector has good sensitivity comparable with the previously published works which infers that it may be used in environmental sensing applications. .. ... .. . . . . . .

DOI

10.21608/jsfw.2025.363984.1000

Keywords

TiO2 thin films, structural properties, Morphology, Optical characteristics, photodetector

Authors

First Name

Sodky

Last Name

Mohamed

MiddleName

Hamed

Affiliation

2Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt

Email

abo_95@yahoo.com

City

-

Orcid

0000-0003-2464-3628

First Name

Mohamed

Last Name

Rabia

MiddleName

-

Affiliation

Nanomaterials Science Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt

Email

mohamedchem@science.bsu.edu.eg

City

-

Orcid

-

First Name

Madeha

Last Name

Awad

MiddleName

-

Affiliation

Physics deparement, Faculty of science, Sohag University, 82524 Sohag, Egypt

Email

arwamadeha@yahoo.com

City

Sohag

Orcid

-

First Name

Mohamed

Last Name

Hassan

MiddleName

Asran

Affiliation

Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt

Email

konter_kont@yahoo.com

City

Sohag

Orcid

-

Volume

1

Article Issue

1

Related Issue

54458

Issue Date

2025-04-01

Receive Date

2025-01-02

Publish Date

2025-04-01

Page Start

1

Page End

5

Print ISSN

3062-5513

Online ISSN

3062-5521

Link

https://jsfw.journals.ekb.eg/article_417626.html

Detail API

http://journals.ekb.eg?_action=service&article_code=417626

Order

1

Type

Original Article

Type Code

3,464

Publication Type

Journal

Publication Title

Journal of Sustainable Food, Water, Energy and Environment

Publication Link

https://jsfw.journals.ekb.eg/

MainTitle

Highly sensitive TiO2 based photodetector for environmental sensing applications

Details

Type

Article

Created At

29 Mar 2025