Annealing effect on the physical properties of TiO2 thin films deposited by spray pyrolysis

被引：13

作者：

Alaya, Y. ^{[1
]}

Souissi, R. ^{[2
]}

Toumi, M. ^{[1
]}

Madani, M. ^{[1
]}

El Mir, L. ^{[1
]}

Bouguila, N. ^{[1
]}

Alaya, S. ^{[1
]}

机构：

[1] Gabes Univ, Fac Sci Gabes, Lab Phys Mat & Nanomat Appl Environm, Gabes 6072, Tunisia

[2] Carthage Univ, Lab Mat Mol & Applicat IPEST, BP 51, Tunis 2070, Tunisia

来源：

RSC ADVANCES | 2023年 / 13卷 / 32期

关键词：

HIGH-PERFORMANCE; PHOTODETECTORS; OXIDE; HETEROSTRUCTURE; DETECTOR; ARRAY;

D O I：

10.1039/d3ra02387g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Titanium dioxide (TiO2) thin films were deposited on glass substrates at 350 & DEG;C using the spray pyrolysis technique. As deposited and annealed thin films were characterized by X-ray diffraction, scanning electron microscopy, UV-VIS spectroscopy, and photodetection. Unlike the as deposited samples which were amorphous, annealed samples show an anatase phase. Films were absorbent in the UV region and the band gap energy decreases from 3.78 eV to 3.4 eV with annealing. The photoresponse of TiO2 photodetectors was recorded under UV (& lambda;(1) = 365 nm, & lambda;(2) = 254 nm) and visible light illumination by reversible switching (ON/OFF) cycles using DC electrical characterization. Photosensitive properties such as reproducible photosensitivity, responsivity, and detectivity were also studied.

引用

页码：21852 / 21860

页数：9

共 62 条

[1] Preparation of TiO2 thin films by spray pyrolysis to be used as a photocatalyst [J].

Abou-Helal, MO ;

Seeber, WT .

APPLIED SURFACE SCIENCE, 2002, 195 (1-4) :53-62

[2] Variation of structural and optical properties of sol-gel TiO2 thin films with catalyst concentration and calcination temperature [J].

Ahn, YU ;

Kim, EJ ;

Kim, HT ;

Hahn, SH .

MATERIALS LETTERS, 2003, 57 (30) :4660-4666

[3] Synthesis and characterization of Eu3+ doped TiO2 thin films deposited by spray pyrolysis technique for photocatalytic application [J].

AL-Shomar, S. M. .

MATERIALS RESEARCH EXPRESS, 2021, 8 (02)

[4] High responsivity solar blind photodetector based on high Mg content MgZnO film grown via pulsed metal organic chemical vapor deposition [J].

Alema, Fikadu ;

Hertog, Brian ;

Ledyaev, Oleg ;

Volovik, Dmitry ;

Miller, Ross ;

Osinsky, Andrei ;

Bakhshi, Sara ;

Schoenfeld, Winston V. .

SENSORS AND ACTUATORS A-PHYSICAL, 2016, 249 :263-268

[5] Structural, Optical and Surface Properties of Multilayer Anatase-TiO2Films Grown by Sol-Gel Spin Coating Technique [J].

Atay, Ferhunde ;

Durmaz, Duygu .

JOURNAL OF ELECTRONIC MATERIALS, 2020, 49 (09) :5542-5551

[6]

Ayieko O., 2012, International Journal of Energy and Engineering, V2, P67, DOI DOI 10.5923/J.IJEE.20120203.02

[7] Titanium Dioxide Nanomaterials for Sensor Applications [J].

Bai, Jing ;

Zhou, Baoxue .

CHEMICAL REVIEWS, 2014, 114 (19) :10131-10176

[8] Positive and negative photoconductivity in sprayed ?-In2S3 thin films [J].

Bouricha, B. ;

Souissi, R. ;

Bouguila, N. ;

Jlidi, D. ;

Labidi, A. .

MATERIALS RESEARCH EXPRESS, 2019, 6 (11)

[9] Optical and electrical properties of CuIn1-xGaSe2 thin films obtained by selenization of sequentially evaporated metallic layers [J].

Caballero, R ;

Guillén, C .

THIN SOLID FILMS, 2003, 431 :200-204

[10] Structure-property relationships for Eu doped TiO2 thin films grown by a laser assisted technique from colloidal sols [J].

Camps, I. ;

Borlaf, M. ;

Colomer, M. T. ;

Moreno, R. ;

Duta, L. ;

Nita, C. ;

Perez del Pino, A. ;

Logofatu, C. ;

Serna, R. ;

Gyorgy, E. .

RSC ADVANCES, 2017, 7 (60) :37643-37653

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