A Study on the UV Photoresponse of Hydrothermally Grown Zinc Oxide Nanorods With Different Aspect Ratios

被引：26

作者：

Al-Hardan, Naif H. ^{[1
]}

Hamid, Muhammad Azmi Abdul ^{[1
]}

Ahmed, Naser M. ^{[2
]}

Jalar, Azman ^{[3
]}

Shamsudin, Roslinda

Othman, Norinsan Kamil ^{[1
]}

Keng, Lim Kar ^{[1
]}

Mohammed, Sabah M. ^{[2
]}

机构：

[1] Univ Kebangsaan Malaysia, Sch Phys, Fac Sci & Technol, Bangi 43600, Malaysia

[2] Univ Sains Malaysia, Sch Phys, Nanooptoelect Res & Technol Lab, George Town 11800, Malaysia

[3] Univ Kebangsaan Malaysia, Inst Microengn & Nanoelect, Bangi 43600, Malaysia

来源：

IEEE SENSORS JOURNAL | 2015年 / 15卷 / 12期

关键词：

ZnO nanorods; UV photo detectors; hydrothermal; aspect ratios; ZNO NANORODS; FABRICATION; FILM; PHOTODETECTORS; NANOWIRES; DEFECTS; NETWORK; DEVICES;

D O I：

10.1109/JSEN.2015.2464311

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report on the effect of the aspect ratio of zinc oxide (ZnO) nanorods (NRs) prepared by the hydrothermal process. It was found that increasing the precursor molar amount resulted in the decrease of the aspect ratio of ZnO NRs. Furthermore, the aspect ratios showed a significant effect on the structural and optical properties of the prepared ZnO NRs. The ZnO NRs were fabricated into a metal-semiconductormetal (MSM) UV photodetector. The performances of the prepared MSM ZnO NRs were also studied, and the high aspect ratio showed that the highest responsivity had a value of 33 A/W at a bias voltage of 5 V and a wavelength of 380 nm. The responsivity, rise time, and full time of the prepared ZnO NRs showed a trend of behavior as the molar amount of the precursor was varied.

引用

页码：6811 / 6818

页数：8

共 46 条

[1] Comparative study of ultraviolet detectors based on ZnO nanostructures grown on different substrates [J].

Abdulgafour, H. I. ;

Hassan, Z. ;

Ahmed, N. M. ;

Yam, F. K. .

JOURNAL OF APPLIED PHYSICS, 2012, 112 (07)

[2] Growth of high-quality ZnO nanowires without a catalyst [J].

Abdulgafour, H. I. ;

Hassan, Z. ;

Al-Hardan, N. H. ;

Yam, F. K. .

PHYSICA B-CONDENSED MATTER, 2010, 405 (19) :4216-4218

[3] Enhanced photoresponse in ZnO nanowires decorated with CdTe quantum dot [J].

Aga, R. S., Jr. ;

Jowhar, D. ;

Ueda, A. ;

Pan, Z. ;

Collins, W. E. ;

Mu, R. ;

Singer, K. D. ;

Shen, J. .

APPLIED PHYSICS LETTERS, 2007, 91 (23)

[4] Highly stable urea sensor based on ZnO nanorods directly grown on Ag/glass electrodes [J].

Ahmad, Rafiq ;

Tripathy, Nirmalya ;

Hahn, Yoon-Bong .

SENSORS AND ACTUATORS B-CHEMICAL, 2014, 194 :290-295

[5] Wide linear-range detecting high sensitivity cholesterol biosensors based on aspect-ratio controlled ZnO nanorods grown on silver electrodes [J].

Ahmad, Rafiq ;

Tripathy, N. ;

Hahn, Yoon-Bong .

SENSORS AND ACTUATORS B-CHEMICAL, 2012, 169 :382-386

[6] The gas response enhancement from ZnO film for H2 gas detection [J].

Al-Hardan, N. ;

Abdullah, M. J. ;

Aziz, A. Abdul .

APPLIED SURFACE SCIENCE, 2009, 255 (17) :7794-7797

[7] A wide-band UV photodiode based on n-ZnO/p-Si heterojunctions [J].

Al-Hardan, N. H. ;

Jalar, Azman ;

Hamid, M. A. Abdul ;

Keng, Lim Kar ;

Ahmed, N. M. ;

Shamsudin, R. .

SENSORS AND ACTUATORS A-PHYSICAL, 2014, 207 :61-66

[8] Role of the Exposed Polar Facets in the Performance of Thermally and UV Activated ZnO Nanostructured Gas Sensors [J].

Alenezi, Mohammad R. ;

Alshammari, Abdullah S. ;

Jayawardena, K. D. G. I. ;

Beliatis, Michail J. ;

Henley, Simon J. ;

Silva, S. R. P. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (34) :17850-17858

[9] Photoresponse of n-ZnO/p-SiC heterojunction diodes grown by plasma-assisted molecular-beam epitaxy -: art. no. 241108 [J].

Alivov, YI ;

Özgür, Ü ;

Dogan, S ;

Johnstone, D ;

Avrutin, V ;

Onojima, N ;

Liu, C ;

Xie, J ;

Fan, Q ;

Morkoç, H .

APPLIED PHYSICS LETTERS, 2005, 86 (24) :1-3

[10]

[Anonymous], 2012, SEMICONDUCTOR DEVICE

← 1 2 3 4 5 →