A patterned ZnO nanorod array/gas sensor fabricated by mechanoelectrospinning-assisted selective growth

2015 ◽  
Vol 51 (15) ◽  
pp. 3117-3120 ◽  
Author(s):  
Xiaomei Wang ◽  
Fazhe Sun ◽  
Yongan Huang ◽  
Yongqing Duan ◽  
Zhouping Yin

Micropatterned ZnO nanorod arrays fabricated by mechanoelectrospinning and the hydrothermal growth method exhibited excellent sensitivity response to NO2.

2015 ◽  
Vol 3 (38) ◽  
pp. 19582-19587 ◽  
Author(s):  
Yiming Tang ◽  
Patrapark Traveerungroj ◽  
Hui Ling Tan ◽  
Peng Wang ◽  
Rose Amal ◽  
...  

ZnO nanorod arrays are used as suitable large area scaffolds to support CdS for improved visible light photoelectrochemical performances.


2020 ◽  
Vol 20 (6) ◽  
pp. 3512-3518
Author(s):  
Saleh Khan ◽  
Xiao-He Liu ◽  
Xi Jiang ◽  
Qing-Yun Chen

Highly efficient and effective porous ZnO nanorod arrays were fabricated by annealing ZnO nanorod arrays grown on a substrate using a simple hydrothermal method. The annealing had a positive effect on the nanorod morphology, structure and optical properties. The porosity was closely related to the annealing temperature. After heating at 450 °C, pores appeared on the nanorods. It was demonstrated that the porosity could be exploited to improve the visible light absorption of ZnO and reduce the bandgap from 3.11 eV to 2.99 eV. A combination of improved charge separation and transport of the heat-treated ZnO thus led to an increase in the photoelectrochemical properties. At an irradiation intensity of 100 mW/cm−2, the photocurrent density of the porous nanorod array was approximately 1.3 mA cm−2 at 1.2 V versus Ag/AgCl, which was five times higher than that of the ZnO nanorods. These results revealed the synthesis of promising porous ZnO nanorods for photoelectrochemical applications.


Optik ◽  
2016 ◽  
Vol 127 (23) ◽  
pp. 11111-11118 ◽  
Author(s):  
Araa Mebdir Holi ◽  
Zulkarnain Zainal ◽  
Zainal Abidin Talib ◽  
Hong-Ngee Lim ◽  
Chi-Chin Yap ◽  
...  

RSC Advances ◽  
2014 ◽  
Vol 4 (84) ◽  
pp. 44452-44456 ◽  
Author(s):  
Y. Yin ◽  
Y. Sun ◽  
M. Yu ◽  
X. Liu ◽  
B. Yang ◽  
...  

Annealing or plasma pre-treating the ZnO seed layer influences the nucleation and hydrothermal growth of ZnO nanorods and their photoluminescence.


2016 ◽  
Vol 14 (7) ◽  
pp. 673-677 ◽  
Author(s):  
Jinyi Ma ◽  
Shiping Mao ◽  
Lu Wang ◽  
Yongliang Tang ◽  
Zhijie Li ◽  
...  

2010 ◽  
Vol 123-125 ◽  
pp. 811-814 ◽  
Author(s):  
Yi Su ◽  
Xiao Ping Zou ◽  
Xiang Min Meng ◽  
Gong Qing Teng ◽  
Gang Qiang Yang ◽  
...  

We are reporting here on an inexpensive and facile fabrication method for ZnO nanorod arrays by hydrothermal growth at low temperature (90°C). In our experiment, ZnO nanostructures were grown on glass substrate using an equimolar (0.1M) aqueous solution of Zn(NO3)2•6H2O (zinc nitrate hexahydrate) and C6H12N4 (HMTA) as precursors solution, and using ammonia solution to controlling the pH levels. It enable easily obtained arrayed ZnO nanorods on substrate, and nanowires which grown on nanorod arrays were identified after about 1 month in the air. The growth process of nanorods and the formation mechanism of nanowires were investigated.


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