Abstract
Au nanoparticles doped TiO2 nanowires (NWs) arrays with an average diameter of 100 nm were synthesized through a facile solvothermal method. Thereafter, metal/semiconductor/metal (MSM) structured detectors with Ag electrodes were fabricated on these NWs. The ultraviolet (UV) sensing characteristics of pure TiO2 and Au-doped ones (Au-TiO2) were investigated. Compared with pure TiO2, the Au-TiO2 NWs based device shows a much lower dark current of 1.5 nA at 3 V bias. The low dark current mechanism might be due to the promoted directional transmission of carriers induced by Au doping. The photoresponse is nearly one order of magnitude under 360 nm monochromatic illumination. The Au-TiO2 NWs detector with simple fabrication process, low noise and good overall performance provides a broad way in fabricating UV imaging arrays.
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References
M. Hu, F. Teng, H. Chen, M. Jiang, Y. Gu, H. Lu, L. Hu and X. Fang, Advanced Functional Materials 27, 1704477 (2017).
Y. Zeng, X. Pan, B. Lu and Z. Ye, RSC Advances 6, 31316 (2016).
W. Wang, Y. Zheng, X. Li, Y. Li, L. Huang and G. Li, Journal of Materials Chemistry C 6, 3417 (2018).
D. Zhang, C. Liu, B. Yin, R. Xu, J. Zhou, X. Zhang and S. Ruan, Nanoscale 9, 9095 (2017).
L. Wang, L. Chang, X. Yin, L. You, J. Zhao, H. Guo, K. Jin, K. Ibrahim, J. Wang, A. Rusydi and J. Wang, Applied Physics Letters 110, 043504 (2017).
B. Guo, G. Wu, H. Chen and M. Wang, Organic Electronics 29, 13 (2016).
S. Wei, R. Wu, J. Jian, F. Chen and Y. Sun, Dalton Transactions 44, 1534 (2015).
A. Patrocinio, L. Paterno and N. Iha, Journal of Materials Chemistry C 114, 17954 (2015).
M. Liu, C. Wang and N. Kim, Sensors 17, 284 (2017).
H. Zhang, S. Ruan, H. Li, M. Zhang, K. Lv, C. Feng and W. Chen, IEEE Electron Device Letters 33, 83 (2012).
Y. Li, S. Cao, A. Zhang, C. Zhang, T. Qu, Y. Zhao and A. Chen, Applied Surface Science 445, 350 (2018).
O. Lupan, V. Cretu, V. Postica, M. Ahmadi, B. Cuenya, L. Chow, I. Tiginyanu, B. Viana, T. Pauporté and R. Adelung, Sensors and Actuators B 223, 893 (2016).
C. Feng, W. Li, C. Li, L. Zhu, H. Zhang, Y. Zhang, S. Ruan, W. Chen and L. Yu, Sensors and Actuators B 166–167, 83 (2012).
H. Zhang, M. Zhang, C. Lin and J. Zhang, Sensors 18, 218 (2018).
V. Bukhtiyarov, A. Nizovskii, H. Bluhm, M. Hävecker, E. Kleimenov, A. Knop-Gericke and R. Schlögl, Journal of Catalysis 238, 260 (2006).
J. Szuber, G. Czempik, R. Larciprete, D. Koziej and B. Adamowicz, Thin Solid Films 391, 198 (2001).
H. Xue, X. Kong, Z. Liu, C. Liu, J. Zhou and W. Chen, Applied Physics Letters 90, 201118 (2007).
S. Yuan, Z. Pei, H. Lai, C. Chen, P. Li and Y. Chan, IEEE Electron Device Letters 36, 1186 (2015).
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This work has been supported by the Natural Science Foundation of the Xinjiang Uygur Autonomous Region (No.016D01C049).
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Zhang, M., Tuokedaerhan, K., Zhang, Hy. et al. Ultraviolet photodetector based on Au doped TiO2 nanowires array with low dark current. Optoelectron. Lett. 15, 81–84 (2019). https://doi.org/10.1007/s11801-019-8106-5
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DOI: https://doi.org/10.1007/s11801-019-8106-5