Well-arrayed ZnO nanostructures formed by multi-annealing processes at low temperature

2011 ◽  
Vol 9 (2) ◽  
pp. 194-197 ◽  
Author(s):  
Dapeng Wang ◽  
Zeming Li ◽  
Toshiyuki Kawaharamura ◽  
Mamoru Furuta ◽  
Tadashi Narusawa ◽  
...  
2011 ◽  
Vol 11 (6) ◽  
pp. 5034-5041 ◽  
Author(s):  
A. Satyanarayana Reddy ◽  
Yi-Hao Kuo ◽  
ShashiB Atla ◽  
Chien-Yen Chen ◽  
Chien-Cheng Chen ◽  
...  

2013 ◽  
Vol 06 (04) ◽  
pp. 1350044
Author(s):  
CHEN CONG ◽  
LU YANG FAN ◽  
HE HAI PING ◽  
WU KE WEI ◽  
YE ZHI ZHEN

The effects of Au on the growth of ZnO nanostructures on Si by metal organic chemical vapor deposition (MOCVD) at a relatively low temperature (450°C) were investigated. The experimental results showed that Au nanoparticles played a critical role during the growth of the ZnO nanostructures and affected their morphology and optical properties. It was found that Au nanoparticles particularly affected the nucleation of ZnO nanostructures during the growth process and the Au -assisted growth mechanism of ZnO nanostructures should be ascribed to the vapor–solid (VS) mechanism. The formation of a nanoneedle may be attributed to a more reactive interface between Au and ZnO , which leads to more zinc gaseous species absorbed near the interface. Different nucleation sites on ZnO nuclei resulted in the disorder of ZnO nanoneedles. Moreover, the crystalline quality of nano- ZnO was improved due to the presence of Au , according to the smaller full width at half maximum (FWHM) of the low-temperature exciton emission. We confirmed that ZnO nanoneedles showed better crystalline quality than ZnO nanorods through the HRTEM images and the SAED patterns. The reason for the improvement of the crystalline quality of nano- ZnO may be due to the less lattice mismatch.


2020 ◽  
Vol 54 (10) ◽  
pp. 1220-1223
Author(s):  
O. F. Farhat ◽  
M. Hisham ◽  
M. Bououdina ◽  
Ammar A. Oglat ◽  
Nyan J. Mohammed

CrystEngComm ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 773-773
Author(s):  
Huijie Wang ◽  
Jing Yu ◽  
Huan Liu ◽  
Xiaoliang Xu

Correction for ‘Low temperature, rapid and controllable growth of highly crystalline ZnO nanostructures via a diluent hydrolytic process and its application to transparent super-wetting films’ by Huijie Wang et al., CrystEngComm, 2018, 20, 7602–7609.


Sensors ◽  
2012 ◽  
Vol 12 (10) ◽  
pp. 13842-13851 ◽  
Author(s):  
Muhammad Amin ◽  
Umair Manzoor ◽  
Mohammad Islam ◽  
Arshad Bhatti ◽  
Nazar Shah

2015 ◽  
Vol 1087 ◽  
pp. 272-275 ◽  
Author(s):  
Ili Liyana Khairunnisa Kamardin ◽  
Ainun Rahmahwati Ainuddin

The effects of surface oxidation of etched metallic Zn foils by hot water treatment for variable times and temperature investigated. ZnO nanostructures were obtained after undergoing hot water treatment at 50°C and 90°C for 2 to 24 hours. The SEM morphology showed ZnO nanostar-like and nanoneedle-like were observed with different hot water treatment temperature. XRD analysis confirmed the existing of ZnO nanostar-like and nanoneedle-like in a hexagonal wurzite structure. Growth of peak on (002) direction confirmed ZnO crystals are columnar in shape and anisotropic with wurzite structure oriented along c-axis. On the basis of the changes in morphology and microstructure induced by hot water treatment, it is concluded that the formation of ZnO are promising at low temperature.


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