Fabrication of platinum decorated zinc oxide nanorod array-based ultraviolet sensors and their responsivity performance

Author(s):  
M. N. Wahida ◽  
M. H. Mamat ◽  
A. A. M. Yussof ◽  
M. A. R. Abdullah ◽  
M. Rusop
Keyword(s):  
2012 ◽  
Vol 51 ◽  
pp. 06FF03 ◽  
Author(s):  
Mohamad Hafiz Mamat ◽  
Nurul Izzah Ishak ◽  
Zuraida Khusaimi ◽  
Musa Mohamed Zahidi ◽  
Mohd Hanapiah Abdullah ◽  
...  
Keyword(s):  

2018 ◽  
Vol 6 (39) ◽  
pp. 10502-10512 ◽  
Author(s):  
Brandon Azeredo ◽  
Anne Carton ◽  
Cédric Leuvrey ◽  
Céline Kiefer ◽  
Dris Ihawakrim ◽  
...  

A ZnO/PBA/Fe3−δO4 nanocomposite displays enhanced magnetic and optical properties as a result of dual synergy.


2012 ◽  
Vol 51 ◽  
pp. 06FE04
Author(s):  
Mohamad Hafiz Mamat ◽  
Zuraida Khusaimi ◽  
Musa Mohamed Zahidi ◽  
Suriani Abu Bakar ◽  
Mohd Zamri Yusop ◽  
...  

2018 ◽  
Vol 8 (04) ◽  
pp. 1381-1386 ◽  
Author(s):  
Yongchen Wang ◽  
Jordan D. Prox ◽  
Bingxi Yan ◽  
Yu Wu ◽  
Aaron D. Argall ◽  
...  

Abstract


2016 ◽  
Vol 675-676 ◽  
pp. 49-52
Author(s):  
Wuttichai Sinornate ◽  
Krisana Chongsri ◽  
Wisanu Pecharapa

F-doped ZnO nanorod structures were synthesized via hydrothermal process with variation of doping content starting from zinc nitrate solution and zinc oxide thin film used as seeding layer. The zinc oxide seeding film was fabricated by spin coating on glass substrate using zinc acetate precursor and annealed at 500 °C for 2 h. Relevant properties of ZnO:F nanorod structures were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and UV-VIS spectrophotometer. Corresponding results indicated that ZnO:F nanorod array, grown in (002) plane, has the characteristics of good crystallinity. In addition, this study showed that ZnO:F nanorod with exceptional structure can be obtained by hydrothermal process, operated at proper treatment time, temperature and F-doping content.


2017 ◽  
Vol 24 (10) ◽  
pp. 3957-3963 ◽  
Author(s):  
Wen Dung Hsu ◽  
Jenn Kai Tsai ◽  
Jyun Yang Tang ◽  
Teen Hang Meen ◽  
Tian Chiuan Wu

2017 ◽  
Vol 28 (44) ◽  
pp. 445404 ◽  
Author(s):  
Yuefan Wei ◽  
Hejun Du ◽  
Junhua Kong ◽  
Van-Thai Tran ◽  
Jia Kai Koh ◽  
...  

2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Mohamad Hafiz Mamat ◽  
Mohd Izzudin Che Khalin ◽  
Nik Noor Hafizah Nik Mohammad ◽  
Zuraida Khusaimi ◽  
Nor Diyana Md Sin ◽  
...  

We have fabricated metal-semiconductor-metal- (MSM-) type ultraviolet (UV) photoconductive sensors using aluminium- (Al-) doped zinc oxide (ZnO) nanorod arrays that were annealed in different environments: air, oxygen, or a vacuum. The Al-doped ZnO nanorods had an average diameter of 60 nm with a thickness of approximately 600 nm that included the seed layer (with thickness~200 nm). Our results show that the vacuum-annealed nanorod-array-based UV photoconductive sensor has the highest photocurrent value of  2.43  ×  10-4 A. The high photocurrent is due to the high concentration of zinc (Zn) interstitials in the vacuum-annealed nanorod arrays. In contrast, the oxygen-annealing process applied to the Al-doped ZnO nanorod arrays produced highly sensitive UV photoconductive sensors, in which the sensitivity reached 55.6, due to the surface properties of the oxygen-annealed nanorods, which have a higher affinity for oxygen adsorption than the other samples and were thereby capable of reducing the sensor’s dark current. In addition, the sensor fabricated using the oxygen-annealed nanorod arrays had the lowest rise and decay time constants. Our result shows that the annealing environment greatly affects the surface condition and properties of the Al-doped ZnO nanorod arrays, which influences the performance of the UV photoconductive sensors.


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