Abstract
The dual-wavelength UV photodetector (PD) with sandwich structure of ZnO/Au/MgZnO/SiO2 was fabricated and investigated with an emphasis on the effects of the Ag nanoparticles localized surface plasmons (LSPs). The results demonstrated that the modification in Ag nanoparticle (NP) position played a remarkable influence on the performance of dual-wavelength UV photodetectors. In comparison with decorating Ag NPs on the surface of the PDs, embedding Ag NPs between the MgZnO and ZnO films could improve two peak responsivities (caused by MgZnO and ZnO layers) significantly. By calculating the responsivities enhancement ratio of double layers (MgZnO and ZnO), the results indicated that the enhancement ratio of MgZnO is higher than that of ZnO. This was ascribed to LSPs of energy match with MgZnO which was superior to ZnO. This work described a creative method for increasing the performance of dual-wavelength UV PDs.
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S.J. Pearton, F. Ren, Y.L. Wang et al., Recent advances in wide bandgap semiconductor biological and gas sensors. Prog. Mater. Sci. 55(1), 1–59 (2010)
M.P. Ulmer, M. Razeghi, E. Bigan, Ultraviolet detectors for astrophysics: present and future. Proc. Spie 2397, 210–217 (1995)
K. Moazzami, T.E. Murphy, J.D. Phillips et al., Sub-bandgap photoconductivity in ZnO epilayers and extraction of trap density spectra. Semicond. Sci. Technol. 21(6), 717–723 (2006)
E. Muchuweni, T.S. Sathiaraj, H. Nyakotyo, Effect of O2/Ar flow ratio on Ga and Al co-doped ZnO thin films by rf sputtering for optoelectronic device fabrication. Mater. Res. Bull. 95, 123–128 (2017)
A. Wei, L. Pan, W. Huang, Recent progress in the ZnO nanostructure-based sensors. Mater. Sci. Eng., B 176(18), 1409–1421 (2011)
Y. Liu, C. Gorla, S. Liang et al., Ultraviolet detectors based on epitaxial ZnO films grown by MOCVD. J. Electron. Mater. 29(1), 69–74 (2000)
S. Liang, H. Sheng, Y. Liu et al., ZnO Schottky ultraviolet photodetectors. J. Cryst. Growth 225(2–4), 110–113 (2001)
K.J. Chen, F.Y. Hung, S.J. Chang et al., Optoelectronic characteristics of UV photodetector based on ZnO nanowire thin films. J. Alloy. Compd. 479(1), 674–677 (2009)
Q. Zheng, H. Feng, D. Kai et al., MgZnO-based metal-semiconductor-metal solar-blind photodetectors on ZnO substrates. Appl. Phys. Lett. 98(22), 213504 (2011)
Y. Kim, B.O. Hyun Kong, M.I. Kyung Choi et al., Influence of Mg composition on the characteristics of MgZnO/ZnO heterostructures grown by co-sputtering. Mater. Sci. Eng. B 165(1), 80–84 (2009)
J.D. Hwang, G.S. Lin, Single-and dual-wavelength photodetectors with MgZnO/ZnO metal- semiconductor-metal structure by varying the bias voltage. Nanotechnology 27(37), 375502 (2016)
R. Liu, D. Jiang, Q. Duan et al., Controlled response wavelength shifting in ultraviolet photodetectors based on double-layer films. J. Appl. Phys. 118(3), 034511 (2015)
C.W. Cheng, E.J. Sie, B. Liu et al., Surface plasmon enhanced band edge luminescence of ZnO nano rods by capping Au nanoparticles. Appl. Phys. Lett. 96(7), 667 (2010)
J.D. Hwang, F.H. Wang, C.Y. Kung et al., Annealing effects of Au nanoparticles on the surface-plasmon enhanced p-si/n-zno nanorods heterojunction photodetectors. J. Appl. Phys. 115(17), 173110–173115 (2014)
G. Li, J. Song, J. Zhang et al., ZnO based UV detectors with Surface Plasmon Polariton enhancement on responsivity. Solid-State Electron. 92, 47–51 (2014)
M. Mahanti, D. Basak, Highly enhanced UV emission due to surface plasmon resonance in Ag–ZnO nanorods. Chem. Phys. Lett. 542, 110–116 (2012)
Y.F. Li, B. Yao, Y.M. Lu et al., Realization of p-type conduction in undoped MgxZn1-xO thin films by controlling Mg content. Appl. Phys. Lett. 91(23), 232115 (2007)
M. Salina, R. Ahmad, el al., Bandgap alteration of transparent zinc oxide thin film with Mg dopant. Trans. Electr. Electron. Mater. 13(2), 64 (2012)
J.S. Jheng, C.K. Wang, Y.Z. Chiou et al., MgZnO/SiO2/ZnO metal–semiconductor–metal dual-band UVA and UVB photodetector with different MgZnO thicknesses by RF magnetron sputter. Jpn. J. Appl. Phys 59, SDDF04 (2019)
X. Zhou, D.Y. Jiang et al., Polarization induced two-dimensional electron gas in ZnO/ZnMgO Heterointerface for High-performance enhanced UV photodetector. J. Alloy. Compd. 820, 153416 (2020)
L.X. Su, Y. Zhu, D.Y. Yong et al., Wide range Bandgap modulation based on ZnO-based alloys and fabrication of solar blind UV detectors with high rejection ratio. ACS Appl. Mater. Interfaces 6(16), 14152–14158 (2014)
R. Ghosh, D. Basak, Composition dependent ultraviolet photoresponse in MgxZn1−xO thin films. J. Appl. Phys. 101(11), 811 (2007)
S. Pillai, M.A. Green, Plasmonics for photovoltaic applications. Sol. Energy Mater. Sol. Cells 94(9), 1481–1486 (2010)
E.D. Palik, Handbook of optical constants of solid (Academic Press, San Diego, 1985)
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This work is supported by the National Natural Science Foundation of China (Grant No. 61774023), Scientific and Technological Development Project of Jilin Province, China (Grant No. 20190101008JH).
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Li, M., Zhao, M., Jiang, D. et al. Optimizing the performance of ZnO/Au/MgZnO/SiO2 sandwich structured UV photodetectors by surface plasmons in Ag nanoparticles. Appl. Phys. A 126, 310 (2020). https://doi.org/10.1007/s00339-020-03486-6
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DOI: https://doi.org/10.1007/s00339-020-03486-6