Optical Field Confinement Enhanced Single ZnO Microrod UV Photodetector
Ming Wei, Chun-Xiang Xu** , Fei-Fei Qin, Arumugam Gowri Manohari, Jun-Feng Lu, Qiu-Xiang Zhu
State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096
Abstract ：ZnO microrods are synthesized using the vapor phase transport method, and the magnetron sputtering is used to decorate the Al nanoparticles (NPs) on a single ZnO microrod. The micro-PL and $I$–$V$ responses are measured before and after the decoration of Al NPs. The FDTD stimulation is also carried out to demonstrate the optical field distribution around the decoration of Al NPs on the surface of a ZnO microrod. Due to an implementation of Al NPs, the ZnO microrod exhibits an improved photoresponse behavior. In addition, Al NPs induced localized surface plasmons (LSPs) as well as improved optical field confinement can be ascribed to an enhancement of ultraviolet (UV) response. This research provides a method for improving the responsivity of photodetectors.
收稿日期: 2017-03-27
出版日期: 2017-06-23
:
85.60.Bt
(Optoelectronic device characterization, design, and modeling)
85.60.Gz
(Photodetectors (including infrared and CCD detectors))
78.67.-n
(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
[1] Peng L, Hu L and Fang X 2013 Adv. Mater. 25 5321 [2] Hassan J J, Mahdi M A, Kasim S J, Ahmed N M, Abu Hassan H and Hassan Z 2012 Appl. Phys. Lett. 101 261108 [3] Wang X, Liao M Y, Zhong Y T, Zheng J Y, Tian W, Zhai T Y, Zhi C Y, Ma Y, Yao J N, Yoshio B and Golberg D 2012 Adv. Mater. 24 3421 [4] Cheng G, Wu X, Liu B, Li B, Zhang X and Du Z 2011 Appl. Phys. Lett. 99 203105 [5] Li J J, Gao Z Y, Xue X W, Li H M, Deng J, Cui B F and Zou D S 2016 Acta Phys. Sin. 65 118104 (in Chinese) [6] Qi X M, Peng W B, Zhao X L and He Y N 2015 Acta Phys. Sin. 64 0198501 (in Chinese) [7] Kind H, Yan H, Messer B, Law M and Yang P 2002 Adv. Mater. 14 158 [8] Tsai D S, Lin C A, Lien W C, Chang H C, Wang Y L and He J H 2011 ACS Nano 5 7748 [9] Xu Q, Cheng Q, Zhong J, Cai W, Zhang Z, Wu Z and Zhang F 2014 Nanotechnology 25 055501 [10] Dai J, Xu C X, Xu X, Guo J, Li J T, Zhu G Y and Lin Y 2013 ACS Appl. Mater. Interfaces 5 9344 [11] Seo H, Park C J, Cho Y J, Kim Y B and Choi D K 2010 Appl. Phys. Lett. 96 232101 [12] Law J B K and Thong J T L 2006 Appl. Phys. Lett. 88 133114 [13] Ahn S E, Lee J S, Kim H, Kim S, Kang B H, Kim K H and Kim G T 2004 Appl. Phys. Lett. 84 5022 [14] Liu W Z, Xu H Y, Wang C L, Zhang L X, Zhang C, Sun S Y and Liu Y C 2013 Nanoscale 5 8634 [15] Pei J, Jiang D, Zhao M, Duan Q, Liu R and Sun L 2016 Appl. Surf. Sci. 389 1056 [16] Fan H, Sun M, Ma P, Yin M, Lu L, Xue X and Zhu X 2016 Nanotechnology 27 365303 [17] West P R, Ishii S, Naik G V, Emani N K, Shalaev V M and Boltasseva A 2010 Laser Photon. Rev. 4 795 [18] Dai J, Xu C X and Sun X W 2011 Adv. Mater. 23 4115 [19] Aguilar C A, Haight R, Mavrokefalos A, Korgel B A and Chen S C 2009 ACS Nano 3 3057 [20] Lin D, Wu H, Zhang W, Li H and Pan W 2009 Appl. Phys. Lett. 94 172103 [21] Xu C, Dai J, Zhu G, Zhu G, Lin Y, Li J and Shi Z 2014 Laser Photon. Rev. 8 469 [22] Czekalla C, Sturm C, Schmidt-Grund R, Cao B, Lorenz M and Grundmann M 2008 Appl. Phys. Lett. 92 241102 [23] Lu J, Zhu Q, Zhu Z, Liu Y, Wei M, Shi Z and Xu C 2016 J. Mater. Chem. C 4 7718 [24] Lu J, Li J, Xu C, Li Y, Dai J, Wang Y and Wang S 2014 ACS Appl. Mater. Interfaces 6 18301
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
.
[8]
.
[9]
.
[10]
.
[11]
.
[12]
.
[13]
.
[14]
.
[15]
.
2017, Vol. 34 
