scholarly journals [Paper] Comparison of the Photoluminescence Properties of ZnO Nanorods Synthesized by Multi-annealing and Chemical Bath Deposition Methods

2016 ◽  
Vol 4 (4) ◽  
pp. 320-325 ◽  
Author(s):  
Chaoyang Li ◽  
Shengwen Hou
2013 ◽  
Vol 549 ◽  
pp. 292-298 ◽  
Author(s):  
Tomoaki Terasako ◽  
Toshihiro Murakami ◽  
Masakazu Yagi ◽  
Sho Shirakata

2015 ◽  
Vol 1109 ◽  
pp. 495-499 ◽  
Author(s):  
J. Rouhi ◽  
F.S. Husairi ◽  
Kevin Alvin Eswar ◽  
Salman A.H. Alrokayan ◽  
Haseeb A. Khan ◽  
...  

In this study, ZnO nanocone arrays were grown on polycarbonate (PC) substrate using a voltage-assisted chemical bath deposition in a Zn (NO3)2 aqueous solution. To optimize the properties of ZnO nanorods grown on the PC substrate, the effects of current density were examined with respect to the morphological, structural, and photoluminescence properties of the nanorods. Field emission scanning electron microscopy and photoluminescence spectrum confirmed that ZnO nanorod arrays were vertically aligned with highly c-axis oriented, and the sample treated at 0.05 mA had the best crystallization among all samples. Based on the combined results of this study, the vertical ZnO nanocons produced on the PC substrate hold great promise for use in the development of flexible solar cell and other applications.


2017 ◽  
Vol 696 ◽  
pp. 996-1003 ◽  
Author(s):  
Beatriz A. Vessalli ◽  
Cecilia A. Zito ◽  
Tarcísio M. Perfecto ◽  
Diogo P. Volanti ◽  
Talita Mazon

Crystals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 386
Author(s):  
Ahmed Fattah Abdulrahman ◽  
Sabah Mohammed Ahmed ◽  
Naser Mahmoud Ahmed ◽  
Munirah Abullah Almessiere

In this study, the effects of different precursor concentrations on the growth and characteristics properties of the zinc oxide (ZnO) nanorods (NRs) synthesized by using modified and conventional chemical bath deposition (CBD) methods were investigated. The morphologic, structural and optical properties of synthesized ZnO NRs with different precursor concentrations were studied using various characterization techniques. The experimental results show that the varying precursor concentration of the reactants has a remarkable and significant effect on the growth and characteristics properties of ZnO NRs. In addition, the characteristic properties of ZnO NRs grown using the modified method showed significantly improved and enhanced properties. The average length of grown ZnO NRs increased with increased precursor concentration; it can be seen that longer ZnO NRs have been investigated using the modified CBD methods. The ZnO NRs synthesized at 0.05 M using the modified method were grown with high aspect ratios than the ZnO NRs grown using conventional means which were 25 and 11, respectively. The growth rate increased with increased precursor concentration; it can be observed that a higher growth rate was seen using the modification CBD method. Furthermore, XRD results for the two cases reveal that the grown ZnO samples were a nanorod-like in shape and possessed a hexagonal wurtzite structure with high crystal quality. No other phases from the impurity were observed. The diffraction peaks along (002) plane became higher, sharper and narrower as precursor concentration increased, suggesting that the crystalline quality of ZnO NRs grown using the modified method was more enhanced and better than conventional methods. However, optical studies show that the transmittance at each concentration was more than two times higher than the transmittance using the modified CBD method. In addition, optical studies demonstrated that the ZnO NRs grown by using modified and conventional methods had a direct Eg in the range of (3.2–3.26) eV and (3.15–3.19) eV, respectively. It was demonstrated in two methods that ZnO NRs grown at a precursor concentration 0.05 M gave the most favorable result, since the NRs had best characteristic properties.


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