Effect of precursor concentration on the performance of UV photodetector using TiO2/reduced graphene oxide (rGO) nanocomposite

被引:36
作者
AlShammari, A. S. [1 ,2 ]
Halim, M. M. [1 ]
Yam, F. K. [1 ]
Kaus, N. H. M. [3 ]
机构
[1] Univ Sains Malaysia, Sch Phys, Usm 11800, Penang, Malaysia
[2] Northern Border Univ, Dept Phys, Rafha, Saudi Arabia
[3] Univ Sains Malaysia, Sch Chem Sci, Usm 11800, Penang, Malaysia
关键词
TiO2; rGO; Spray pyrolysis technique; MSM ultraviolet photodetector; Glass substrate; Photodetection characteristics; SOLUTION-PROCESSABLE GRAPHENE; CHEMICAL BATH DEPOSITION; SENSITIZED SOLAR-CELLS; HOLE TRANSPORT LAYER; THIN-FILMS; PHOTOCATALYTIC PERFORMANCE; PHOTOVOLTAIC PERFORMANCE; HIGHLY EFFICIENT; TIO2; FABRICATION;
D O I
10.1016/j.rinp.2020.103630
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This study evaluates the photodetection performance of metal-semiconductor-metal (MSM) ultraviolet photo-detector based on TiO2 and TiO2/rGO films deposited on glass substrates. TiO2/rGO thin films with different concentrations of GO (1, 5, 7 and 10 wt%) were deposited on the glass substrates using spray pyrolysis technique (SPT). The TiO2 and TiO2/rGO samples were characterized using Raman spectroscopy, Field Emission Scanning Electron Microscope (FESEM), X-ray diffraction (XRD), and UV spectroscopy (UV) to determine the effect of rGO concentration on the morphology, crystal structure and optical properties of the TiO2/rGO thin films. The successful interface between TiO2 and rGO was confirmed by the broadening characteristic of the XRD peak for anatase TiO2, increasing D and G band intensity ratios (I-D/I-G) of Raman spectra from 1.05 to 1.9, and decreasing intensity of UV-Vis transmittance spectra as the rGO concentration is increased from 1 to 10 wt%. The decline in the energy bandgap of the thin films from 3.60 to 3.04 eV with the increase in rGO concentration proves the effect of rGO concentration on conductivity. Al metal contacts were sputtered on the thin film samples using RF sputtering to fabricate the MSM photodetector. The photoresponse (R), sensitivity (S%), photodetector gain (G), and recovery times of the photodetector under 375 nm UV illumination (0.37 mW/cm(2)) and bias voltage of 3 V show that TiO2/rGO thin film prepared via SPT is a promising material for a high quality MSM photodetectors, and confirms the effect of GO concentration on the photodetection performance.
引用
收藏
页数:12
相关论文
共 50 条
[41]   Titania/reduced graphene oxide nanocomposites (TiO2/rGO) as an efficient photocatalyst for the effective degradation of brilliant green in aqueous media: effect of peroxymonosulfate and operational parameters [J].
Khan, Qaiser ;
Sayed, Murtaza ;
Gul, Ikhtiar .
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2023, 30 (27) :71025-71047
[42]   Synthesis and photocatalytic performance of TiO2 nanospheres–graphene nanocomposite under visible and UV light irradiation [J].
Malgorzata Wojtoniszak ;
Beata Zielinska ;
Xuecheng Chen ;
Ryszard J. Kalenczuk ;
Ewa Borowiak-Palen .
Journal of Materials Science, 2012, 47 :3185-3190
[43]   Fabrication and Photocatalytic Properties of TiO2/Reduced Graphene Oxide/Ag Nanocomposites with UV/Vis Response [J].
Gou, Xueli ;
Cheng, Yongliang ;
Liu, Bin ;
Yang, Bingjun ;
Yan, Xingbin .
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2015, (13) :2222-2228
[44]   Boosted photoresponsivity using silver nanoparticle decorated TiO2 nanowire/reduced graphene oxide thin-film heterostructure [J].
Deb, Prasenjit ;
Dhar, Jay Chandra .
NANOTECHNOLOGY, 2020, 31 (28)
[45]   Effects of Ag particle geometry on photocatalytic performance of Ag/TiO2 reduced graphene oxide ternary systems [J].
Chen, Yen-Shin ;
Chao, Bo-Kai ;
Nagao, Tadaaki ;
Hsueh, Chun-Hway .
MATERIALS CHEMISTRY AND PHYSICS, 2020, 240
[46]   Photocatalytic performance of Sn-doped TiO2/reduced graphene oxide composite materials [J].
Thuy-Duong Nguyen-Phan ;
Viet Hung Pham ;
Chung, Jin Suk ;
Chhowalla, Manish ;
Asefa, Tewodros ;
Kim, Woo-Jae ;
Shin, Eun Woo .
APPLIED CATALYSIS A-GENERAL, 2014, 473 :21-30
[47]   Kinetic performance of TiO2/Pt/reduced graphene oxide composites in the photocatalytic hydrogen production [J].
Rivero, Maria J. ;
Iglesias, Olalla ;
Ribao, Paula ;
Ortiz, Inmaculada .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2019, 44 (01) :101-109
[48]   Reduced Graphene Oxide/TiO2 Nanocomposite: From Synthesis to Characterization for Efficient Visible Light Photocatalytic Applications [J].
Rommozzi, Elena ;
Zannotti, Marco ;
Giovannetti, Rita ;
D'Amato, Chiara Anna ;
Ferraro, Stefano ;
Minicucci, Marco ;
Gunnella, Roberto ;
Di Cicco, Andrea .
CATALYSTS, 2018, 8 (12)
[49]   Interface modification of polymer solar cells using graphene oxide and TiO2 NPs [J].
Hu, Xu ;
Xiong, Jian ;
Tang, Yanhong ;
Zhou, Conghua ;
Yang, Junliang .
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2015, 212 (03) :585-590
[50]   TiO2/reduced graphene oxide composite based nano-petals for supercapacitor application: effect of substrate [J].
Fulari, A. V. ;
Reddy, M. V. Ramana ;
Jadhav, S. T. ;
Ghodake, G. S. ;
Kim, Dae-Young ;
Lohar, G. M. .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2018, 29 (13) :10814-10824