Study of Morphological and Related Properties of Aligned Zinc Oxide Nanorods Grown by Vapor Phase Transport on Chemical Bath Deposited Buffer Layers

2011 ◽  
Vol 11 (12) ◽  
pp. 5378-5386 ◽  
Author(s):  
Daragh Byrne ◽  
Rabie Fath Allah ◽  
Teresa Ben ◽  
David Gonzalez Robledo ◽  
Brendan Twamley ◽  
...  
2008 ◽  
Vol 8 (11) ◽  
pp. 5854-5857 ◽  
Author(s):  
Guangping Zhu ◽  
Chunxiang Xu ◽  
Jing Zhu ◽  
Changgui Lu ◽  
Yiping Cui ◽  
...  

High density zinc oxide nanorods with uniform size were synthesized on (100) silicon substrate by vapor-phase transport method. The scanning electron microscopy images reveal that the nanorods have an average diameter of about 400 nm. The X-ray diffraction pattern demonstrates the wurtzite crystalline structure of the ZnO nanorods growing along [0001] direction. The single-photon excited photoluminescence presents a strong ultraviolet emission band at 394 nm and a weak visible emission band at 600 nm. When the ZnO nanorods were respectively pumped by various wavelength lasers from 520 nm to 700 nm, two-photon excited ultraviolet photoluminescence was observed. The dependence of the two-photon excited photoluminescence intensity on the excitation wavelength and power was investigated in detail.


2010 ◽  
Vol 312 (24) ◽  
pp. 3675-3679 ◽  
Author(s):  
Tarek M. Trad ◽  
Kyle B. Donley ◽  
David C. Look ◽  
Kurt G. Eyink ◽  
David H. Tomich ◽  
...  

NANO ◽  
2007 ◽  
Vol 02 (05) ◽  
pp. 281-284 ◽  
Author(s):  
L. Y. CHEN ◽  
B. X. GU ◽  
G. P. ZHU ◽  
Y. F. WU ◽  
S. Q. LIU ◽  
...  

A phenol biosensor based on the skillful immobilization of tyrosinase on zinc oxide ( ZnO ) nanorods was proposed. The ZnO nanorods fabricated by a simple vapor-phase transport method possess a high aspect ratio, good electron communication, chemical purity, smooth and positive charged surface and are ready for immobilization of biochemicals with low isoelectric point (IEP). Electrochemical measurement and Scanning Electron Microscopic (SEM) analysis showed that the enzyme of tyrosinase with IEP 4.5 can be adsorbed on the surface of ZnO nanorods and kept its bioactivity of the oxidation of phenol to a large extent. This led us to develop phenol biosensor with good stability and reproducibility. The proposed method creates a new way to develop biosensors using nanostructured materials with high IEP.


2021 ◽  
Vol 67 ◽  
pp. 15-24
Author(s):  
Lahcen Nkhaili ◽  
Abdelkader El Kissani ◽  
Hind El Aakib ◽  
Abderrahmane Abbassi ◽  
Abdelfattah Narjis ◽  
...  

In this study, dense zinc oxide nanowires were electrochemically synthesized on sputtered zinc oxide buffer layers substrates using a solution of zinc chloride as a precursor. The control of nanowires density was studied. X-Ray Diffraction patterns revealed the formation of pure wurtzite zinc oxide structure. The mechanism of the formation of zinc oxide nanorods from the nucleation to the growth stage is proposed based on the study of the deposition parameters. Optical analysis reveals that these films can be involved in solar cells as window layers. Moreover, controlling structural properties of the buffer is an excellent way to control the formation of nanorods during the nucleation step. In fact, Scanning Electronic Microscopy images and reflectometry analysis showed that the buffer layer consists of dense nanoparticles, with a density that increases by increasing the radiofrequency frequency power, This can be explained by the densification of the nanorods deposited thereon.


2006 ◽  
Vol 88 (25) ◽  
pp. 251111 ◽  
Author(s):  
Liang-Chiun Chao ◽  
Ping-Chang Chiang ◽  
Shih-Hsuan Yang ◽  
Jian-Wei Huang ◽  
Chung-Chi Liau ◽  
...  

2005 ◽  
Vol 17 (16) ◽  
pp. 4227-4234 ◽  
Author(s):  
Zuoming Zhu ◽  
Tsung-Liang Chen ◽  
Yi Gu ◽  
John Warren ◽  
Richard M. Osgood

2021 ◽  
Vol 128 ◽  
pp. 105783
Author(s):  
R.R. Jalolov ◽  
Sh.Z. Urolov ◽  
Z.Sh. Shaymardanov ◽  
S.S. Kurbanov ◽  
B.N. Rustamova

2011 ◽  
Vol 15 (6) ◽  
pp. 401-405 ◽  
Author(s):  
S K Lim ◽  
H Q Le ◽  
G K L Goh ◽  
K K Lin ◽  
S B Dolmanan

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