Response improvement of acetone sensors using CuO/ZnO hierarchical structure under UV radiation

Vuong Nguyen Minh, Hieu Hoang Nhat, Nghia Nguyen Van, Truong Nguyen Ngoc Khoa

Abstract


The improvement in the response property of acetone sensors has been investigated using sensing layers of CuO/ZnO hierarchical nanostructure under UV irradiation. ZnO hierarchical structure was fabricated by hydrothermal sprouting of ZnO nanorods around ZnO nanofibers, which is fabricated by electrospinning method followed by thermal oxidation. CuO particles were decorated on the ZnO surface by optical deposition method. The acetone sensing properties of pure ZnO and CuO/ZnO sensors have been studied. The results showed that CuO/ZnO sensors had a higher response to acetone vapor than pure ZnO sensors at most of the operating temperatures. The highest response of 3929% towards 1,863% acetone vapor at operating temperature of 240°C was observed by CuO(2)/ZnO structure under UV irradiation. The mechanism of acetone sensing of CuO/ZnO materials are also discussed in detail. The morphology and structural properties of the materials were investigated based on SEM, TEM, EDS and XRD.

Keywords


acetone sensor; hierarchical structure; CuO/ZnO; UV irradiation

Full Text:

PDF

References


F.M. Li, G. Hsieh, S. Dalal, M.C. Newton, J.E. Stott, P. Hiralal, A. Nathan, P.A. Warburton, H.E. Unalan, P. Beecher, A.J. Flewitt, I. Robinson, G. Amaratunga, W.I. Milne, IEEE Transactions on Electron Devices 55 (2008) 3001. http:// doi.org/10.1109/ted.2008.2005180

E. Çetinörgü, S. Goldsmith, Journal of Physics D: Applied Physics 40 (2007) 5220.

N.H. Al-Hardan, M.J. Abdullah, A.A. Aziz, International Journal of Hydrogen Energy 35 (2010) 4428. http://doi.org/10.1016/j.ijhydene.2010.02.006

N. Hongsith, E. Wongrat, T. Kerdcharoen, S. Choopun, Sensors and Actuators B: Chemical 144 (2010) 67. http://doi.org/10.1016/j.snb.2009.10.037

S. Krutovertsev, M. Chuprin, O. Ivanova, A. Pislyakov, A. Shevchenko, V. Konovalov, V. Kalinovsky, Procedia Engineering 5 (2010) 244. http://doi.org/10.1016/j.proeng.2010.09.093

J.-H. Lee, Sensors and Actuators B: Chemical 140 (2009) 319. https://doi.org/10.1016/j.snb.2009.04.026

M.R. Alenezi, S.J. Henley, N.G. Emerson, S.R.P. Silva, Nanoscale 6 (2014) 235. http://doi.org/10.1039/c3nr04519f

X. Pan, X. Zhao, J. Chen, A. Bermak, Z. Fan, Sensors and Actuators B: Chemical 206 (2015) 764. https://doi.org/10.1016/j.snb.2014.08.089

R.K. Joshi, Q. Hu, F. Alvi, N. Joshi, A. Kumar, The Journal of Physical Chemistry C 113 (2009) 16199. http://doi.org/10.1021/jp906458b

W.J. Moon, J.H. Yu, G.M. Choi, Sensors and Actuators B: Chemical 87 (2002) 464.http://doi.org/ 10.1016/S0925-4005(02)00299-X

S.-J. Kim, C.W. Na, I.-S. Hwang, J.-H. Lee, Sensors and Actuators B: Chemical 168 (2012) 83. http:doi.org/10.1016/j.snb.2012.01.045

X. Liu, J. Sun, X. Zhang, Sensors and Actuators B: Chemical 211 (2015) 220.http://doi.org/ 10.1016/j.snb.2015.01.083

N. Yamazoe, K. Shimanoe, Sensors and Actuators B: Chemical 187 (2013) 162.http://doi.org/ 10.1016/j.snb.2012.10.048

N.M. Vuong, N.D. Chinh, T.T. Hien, N.D. Quang, D. Kim, H. Kim, S.-G. Yoon, D. Kim, Journal of Nanoscience and Nanotechnology 16 (2016) 10346. http://doi.org/10.1166/jnn.2016.13157

I. Karaduman, D.E. Yıldız, M.M. Sincar, S. Acar, Materials Science in Semiconductor Processing 28 (2014) http://dx.doi.org/10.1016/j.mssp.2014.04.011




DOI: https://doi.org/10.51316/jca.2020.033

Refbacks

  • There are currently no refbacks.




*******

Index: Google Scholar; Crossref

---------

Vietnam Journal of Catalysis and Adsorption

Address: Room 302  |  C4-5  |  Hanoi University of Science and Technology. 1 Dai Co Viet, Hanoi.

Tel.: ‎‎‎+84. 967.117.098 (Dr. Phượng)  |  Email: editor@jca.edu.vn  |  FB: JCA.VNACA