Enhanced Ultraviolet Photodetector Based on Mg-Doped ZnO Nanorods Films


  • Hussein Abdullah Hameed Department of Physics, Faculty of Science, University of Kufa, IRAQ




pure ZnO nanorods Mg doping ZnO nanorods, MSM Photodetector, hydrothermal method, nanotubes.


Magnesium-doped zinc oxide (ZnO: Mg) nanorods and nanotubes films were prepared by hydrothermal method deposited on glass substrates. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), photoluminescence (PL), and optical absorption spectroscopy (UV) were performed to characterize the prepared films. X-ray diffraction analysis showed a decrease in the lattice parameters of Mg doped ZnO NRs. The Photoluminescence of the undoped and Mg-doped ZnO NRs displayed a near band edge. At 10 V bias, the metal-semiconductor-metal (MSM) ultraviolet (UV) photodetector performance of the Mg-doped ZnO prepared for various Mg concentrations of 0.0, 0.02, and 0.06 was investigated under radiation of 40μW/cm2 at the wavelengths of 365 and 385 nm UV light. The responsivity, detectivity and quantum efficiency of Mg-doped based on MSM detector were 0.118A/W, 1.0579*1012 and 40.05157 under UV of wavelength 365nm respectively.


Z. R. Dai, Z. W. Pan, and Z. L. Wang, Novel nanostructures of functional oxides synthesized by thermal evaporation. Advanced Functional Materials, 2003. 13(1): p. 9-24


M. S. Alam, U. Manzoor, M. Mujahid, and A. S. Bhatti1, Highly Responsive UV Light Sensors Using Mg-Doped ZnO Nanoparticles. Journal of Sensors, 2016.

B.Santoshkumara, A. Biswasb, S. Kalyanaramana, R. Thangavelc, G.Udayabhanub, G. Annaduraid, and S. Velumanie, Influence of defect luminescence and structural modification on the electrical properties of Magnesium Doped Zinc Oxide Nanorods. Superlattices and Microstructures, 2017. 106: p. 58-66.

M. Zhao, X. Wanga, J. Cheng, L. Zhang, J. Jia, and X. Li, Synthesis and ethanol sensing properties of Al-doped ZnO nanofibers. Current Applied Physics, 2013. 13(2): p. 403-407.

N. Thaweesaeng, S. Supankit, W. Techidheera, and W. Pecharap, Structure properties of as-synthesized Cu-doped ZnO nanopowder synthesized by co-precipitation method. Energy Procedia, 2013. 34: p. 682-688.

A. Djurišić, A. Ng, and X. Chen, ZnO nanostructures for optoelectronics: material properties and device applications. Progress in quantum electronics, 2010. 34(4): p. 191-259.

H. T. Kim, T. P. Nguyen, C. Kim, and C. Park, Formation mechanisms of pyrite (FeS2) nano-crystals synthesized by colloidal route in sulfur abundant environment. Materials Chemistry and Physics, 2014. 148(3): p. 1095-1098.

J. X. Wang, X. W. Sun, Y. Yang, and L Vayssieres, Hydrothermally grown oriented ZnO nanorod arrays for gas sensing applications. Nanotechnology, 2006. 17(19): p. 4995.

J. Bao, M. A. Zimmler, F. Capasso, X. Wang, and Z. F. Ren, Broadband ZnO single-nanowire light-emitting diode. Nano letters, 2006. 6(8): p. 1719-1722.

L. Luo, Y. Zhang, S. Mao, and L. Lin, Fabrication and characterization of ZnO nanowires based UV photodiodes. Sensors and Actuators A: Physical, 2006. 127(2): p. 201-206.

Y. Lu, I. Dajani, and R. Knize, ZnO nanorod arrays as pn heterojunction ultraviolet photodetectors. Electronics Letters, 2006. 42(22): p. 1309-1310.

M. Fu, Y. Li, P. Lu, J. Liu, and F. Dong, Sol–gel preparation and enhanced photocatalytic performance of Cu-doped ZnO nanoparticles. Applied Surface Science, 2011. 258(4): p. 1587-1591.

L. Chow, O. Lupan, G. Chai, H. Khallaf, and L. K. Ono, Synthesis and characterization of Cu-doped ZnO one-dimensional structures for miniaturized sensor applications with faster response. Sensors and Actuators A: Physical, 2013. 189: p. 399-408.

O. Lupan, L. Chow, L. Ono, and B. Cuenya, Synthesis and characterization of Ag-or Sb-doped ZnO nanorods by a facile hydrothermal route. The Journal of Physical Chemistry C, 2010. 114(29): p. 12401-12408.

M. Habibi, and M. K. Sardashti, Structure and morphology of nanostructured zinc oxide thin films prepared by dip-vs. spin-coating methods. Journal of the Iranian Chemical Society, 2008. 5(4): p. 603-609.

A. Ohtomo, K. Tamura, M. Kawasaki, and T. Makino, Room-temperature stimulated emission of excitons in ZnO/(Mg, Zn) O superlattices. Applied Physics Letters, 2000. 77(14): p. 2204-2206.

E. Guidelli, O. Baffa, and D. Clarke, Enhanced UV emission from silver/ZnO and gold/ZnO core-shell nanoparticles: photoluminescence, radioluminescence, and optically stimulated luminescence. Scientific reports, 2015. 5: p. 14004.

K. E. Knutsen, A. Galeckas, A. Zubiaga, and F. Tuomisto, Zinc vacancy and oxygen interstitial in ZnO revealed by sequential annealing and electron irradiation. Physical Review B, 2012. 86(12): p. 121203.

A. Janotti, and C. V. Walle, Fundamentals of zinc oxide as a semiconductor. Reports on progress in physics, 2009. 72(12): p. 126501.

H. Hsu, C. Wu, H. Cheng, and W. Hsieh, Band gap engineering and stimulated emission of ZnMgO nanowires. Applied Physics Letters, 2006. 89(1): p. 013101.

X. Wu, G. Siu, C. Fu, and H. Ong, Photoluminescence and cathodoluminescence studies of stoichiometric and oxygen-deficient ZnO films. Applied Physics Letters, 2001. 78(16): p. 2285-2287.

H. Wang, G. Wang, L. Jia, and C. Tang, Polychromatic visible photoluminescence in porous ZnO nanotubes. Journal of Physics D: Applied Physics, 2007. 40(21): p. 6549.

B. Sonawane, M. Bhole, and D. Patil, Structural, optical and electrical properties of MgxZn1− xO ternary alloy films. Materials Science in Semiconductor Processing, 2009. 12(6): p. 212-216.

C. L. Hsu, and S. J. Chang, Doped ZnO 1D nanostructures: synthesis, properties, and photodetector application. Small, 2014. 10(22): p. 4562-4585.

Y. Liu, C. Gorla, S Liang, N. Emanetoglu, Y. Lu, Ultraviolet detectors based on epitaxial ZnO films grown by MOCVD. Journal of Electronic Materials, 2000. 29(1): p. 69-74.

D. Zhang,and D. Brodie, Photoresponse of polycrystalline ZnO films deposited by rf bias sputtering. Thin Solid Films, 1995. 261(1-2): p. 334-339.

C. Chey, A. Masood, A. Riazanova, and X. Liu, Synthesis of Fe-doped ZnO nanorods by rapid mixing hydrothermal method and its application for high performance UV photodetector. Journal of Nanomaterials, 2014. p. 222.




How to Cite

H. A. Hameed, “Enhanced Ultraviolet Photodetector Based on Mg-Doped ZnO Nanorods Films”, MJS, vol. 29, no. 3, pp. 158–167, Mar. 2019.