TiO2-UV detection under different types of acids and rinsing process for films preparation
DOI:
https://doi.org/10.55674/jmsae.v12i3.251924Keywords:
Sol-gel; Dip coating, TiO2 ultraviolet detection, Photoelectric propertyAbstract
Titanium dioxide (TiO2) films were prepared by the sol–gel method under different types of acids. Effect of hydrochloric acid (HCl), nitric acid (HNO3) and nature-based solutions (NBS) under ultraviolet (UV) detection of films were investigated. Films were coated by dip coating on glass substrate. Moreover, TiO2 films were compared properties on water rinsing (Ri) and without rinsing (WRi) processes. The phase structure of prepared samples was characterized by means of X-ray powder diffraction (XRD). The results confirm that films were highly crystalline anatase TiO2 and free from other phases of titanium dioxide. For the optical property, the transmittance (%T) observed sharp rise in the violet-ultraviolet transition region and a maximum transmittance of ~80%. Photocurrents were measured under UV intensity of 260 mWcm–2 and DC bias voltage of -20 – 20 volts (V). The results observed that currents increased as bias voltage increased. Current - Voltage (I-V) curves observed different slopes under the different of acids and rinsing process. The photocurrent of TiO2-NBS-Ri was greater than TiO2-HCl-WRi and TiO2-HNO3-WRi of 10 and 20 times; respectively. These findings suggest that the significant effect of the acid and rinsing process on crystalline, morphological, optical, and electrical properties of nanostructured TiO2 films would be useful for applying the device in UV photoelectric detection.
References
D. Zhang, F. Jing, F. Gao, L. Shen, D. Sun, J. Zhou, Y. Chen, S. Ruan, Enhanced performance of a TiO2 ultraviolet detector modified with graphene oxide, RSC Adv. 5(102) (2015) 83795 – 83800.
K. LV, M. Zhang, C. Liu, G. Liu, H. Li, S. Wen, Y. Chen, S. Ruan, TiO2 ultraviolet detector based on LaAlO3 substrate with low dark current, J. Alloys Compd. 580(2013) 614 – 617.
P. Parthasarathy, Synthesis and UV detection characteristics of TiO2 thin film prepared through sol gel route, IOP Conf. Ser. :Mater. Sci. Eng. 360(1) (2018) 012056.
J. Zou, Q. Zhang, K. Huang, N. Marzari, Ultraviolet photodetectors based on anodic TiO2 nanotube arrays, J. Phys. Chem. C. 114(24) (2010) 0725 – 10729.
Y. Han, G. Wu, M. Wang, H. Chen, Hybrid ultraviolet photodetectors with high photosensitivity based on TiO2 nanorods array and polyfluorene, Appl. Surf. Sci. 256(5) (2009) 1530 – 1533.
H. Xue, X. Kong, Z. Liu, C. Liu, J. Zhou, W. Chen, Q. Xu, TiO2 based metal-semiconductor-metal ultraviolet photodetectors, Appl. Phys. Lett. 90(20) (2007) 201118.
J. Zhou, B. Song, G. Zhao, G. Han, Effects of acid on the microstructures and properties of three-dimensional TiO2 hierarchical structures by solvothermal method, Nanoscale research letters, 7(1) (2012) 1 – 10.
C. J. Brinker, G. W. Scherer, Sol-gel science: the physics and chemistry of sol-gel processing, Academic press, 2013.
H. M. Shang, Y. Wang, S. J. Limmer, T. P. Chou, K. Takahashi, G.Z. Cao, Optically transparent superhydrophobic silica-based films, Thin Solid Films, 472(1-2) (2005) 37 – 43.
B. Tryba, M. Tygielska, C. Colbeau-Justin, E, Kusiak-Nejman, J. Kapica-Kozar, R. Wróbel, N. Guskos, Influence of pH of sol-gel solution on phase composition and photocatalytic activity of TiO2 under UV and visible light, Mater. Res. Bull. 84 (2016)
– 161.
J. Zhou, B. Song, G. Zhao, G. Han, Effects of acid on the microstructures and properties of three-dimensional TiO2 hierarchical structures by solvothermal method, Nanoscale research letters, 7(1) (2012) 1 – 10.
M. Tsega, F. Dejene, Influence of acidic pH on the formulation of TiO2 nanocrystalline powders with enhanced photoluminescence property, Heliyon. 3(2) (2017) e00246.
S. Mondal, D. Basak, Very high photoresponse towards low-powered UV light under low-biased condition by nanocrystal assembled TiO2 film, Appl. Surf. Sci. 427(2018) 814 – 822.
I. S. Aida, S. Sreekantan, Effect of pH on TiO2 nanoparticles via sol-gel method, Adv. Mat. Res. 173 (2011) 184 – 189.
W. Langel, P. Y. Yu, M. Cardona, Fundamentals of semiconductors physics and materials properties, 3rd rev. and enlarged edn. (Advanced texts in physics) (2003) 729 – 730.
S. Chang, M. Park, Q. Kuang, Y. Deng, A. Sood, D. Polla, Z. Wang, Giant enhancement in UV response of ZnO nanobelts by polymer surface-functionalization, J. Am. Chem. Soc. 129(40) (2007) 12096 - 12097.
J. Wang, X. Nie, W. Wang, Z. Zhao, L. Li, Z. Zhang, Single-layer graphene-TiO2 nanotubes array heterojunction as photoanode to enhance the photoelectric of DSSCs, Optik. 242 (2021) 167245.
D. Chen, Y. J. Yuan, Thin-film sensors for detection of formaldehyde: A review, IEEE Sens. J. 15(12) (2015) 6749 – 6760.
L. Wang, W. Yang, H. Chong, L. Wang, F. Gao, L. Tian, Z. Yang, Efficient ultraviolet photodetectors based on TiO2 nanotube arrays with tailored structures, RSC Adv. 5(65) (2015) 52388 - 52394.
D. Nunes, A. Pimentel, A. Araujo, T. Calmeiro, S. Panigrahi, J. Pinto, P. Barquinha, M. Gama, E. Fortunato, R. Martins, Enhanced UV flexible photodetectors and photocatalysts based on TiO2 nanoplatforms, Top Catal. 61(15) (2018) 1591 - 1606.
J. Zou, Q. Zhang, K. Huang, N. Marzari, Ultraviolet photodetectors based on anodic TiO2 nanotube arrays, J. Phys. Chem. 114(24) (2010) 10725 – 10729.
H. Liu, W. Lin, W. Sun, S. Wei, S. Yu, A study of ultrasonic spray pyrolysis deposited rutile-TiO2-based metal-semiconductor-metal ultraviolet photodetector, Mater. Sci. Semicond. Process. 57 (2017) 90 – 94.
K. Chahrour, F. Yam, R. Abdalrheem, High-performance UV photodetector of anodic rutile TiO2 nanotube arrays, Mater. Lett. 248 (2019) 161 – 164.
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