Effect of Ga-doped ZnO seed layer thickness on the morphology and optical properties of ZnO nanorods

2013 ◽  
Author(s):  
R. Nandi ◽  
D. Singh ◽  
P. Joshi ◽  
R. S. Srinivasa ◽  
S. S. Major
Keyword(s):  
Optical Properties ◽  
Layer Thickness ◽  
Seed Layer ◽  
Zno Nanorods ◽  
Doped Zno ◽  
Seed Layer Thickness

The effect of seed layer thickness on alignment and morphology of ZnO nanorods

Vacuum ◽  
2011 ◽  
Vol 86 (1) ◽  
pp. 101-105 ◽  
Author(s):  
H. Ghayour ◽  
H.R. Rezaie ◽  
Sh. Mirdamadi ◽  
A.A. Nourbakhsh
Keyword(s):  
Layer Thickness ◽  
Seed Layer ◽  
Zno Nanorods ◽  
Seed Layer Thickness

Influence of Al, Ta Doped ZnO Seed Layer on the Structure, Morphology and Optical Properties of ZnO Nanorods

2019 ◽  
Vol 4 (1) ◽  
pp. 45-58
Author(s):  
S. Mageswari ◽  
Balan Palanivel
Keyword(s):  
Zinc Oxide ◽  
Optical Properties ◽  
Band Gap ◽  
Seed Layer ◽  
Hexagonal Phase ◽  
Zno Nanorods ◽  
Oxide Material ◽  
Vertically Aligned ◽  
Doped Zno ◽  
Seed Layers

Background: Zinc oxide (ZnO) is one of the most attractive II-VI semiconductor oxide material, because of its direct wide band gap (3.37 eV) and large binding energy (60 meV). Zinc oxide (ZnO) is a promising semiconductor due to its optimised optical properties. Among semiconductor nanostructures, the vertically aligned one-dimensional ZnO nanorods are very important for nano device application. Methods: Vertically aligned ZnO nanorod arrays were grown on ZnO, aluminum doped ZnO (ZnO:Al), tantalum doped ZnO (ZnO:Ta) and aluminum and tantalum co-doped ZnO (ZnO:Al,Ta) seed layer by hydrothermal method. Results: The X-Ray Diffraction (XRD) investigation indicated the presence of hexagonal phase for the both seed layers and nanorods. The Scanning Electron Microscope (SEM) images of ZnO and doped ZnO seed layer thin-films show spherical shaped nanograins organized into wave like morphology. The optical absorption spectra revealed shift in absorption edge towards the shorter wavelength (blue shifted) for ZnO nanorods grown on ZnO:Al, ZnO:Ta and ZnO:Al,Ta seed layer compared to ZnO nanorods grown on ZnO seed layer. Conclusion: The increase in band gap value for the ZnO nanorods grown on doped ZnO seed layers due to the decrease in crystallite size and lattice constant as evidenced from XRD analysis. The unique property of Al, Ta doped ZnO can be used to fabricate nano-optoelectronic devices and photovoltaic devices, due to their improved optical properties.

Growth of ZnO Nanorods on Different Seed Layer Thickness Using the Hydrothermal Method for UV Detection

2019 ◽  
Vol 14 (7) ◽  
pp. 964-971 ◽  
Author(s):  
Basavaraj S. Sannakashappanavar ◽  
C. R. Byrareddy ◽  
Nandini A. Pattanashetti ◽  
Kunal Singh ◽  
Aniruddh Bahadur Yadav
Keyword(s):  
Hydrothermal Method ◽  
Layer Thickness ◽  
Seed Layer ◽  
Zno Nanorods ◽  
Uv Detection ◽  
Seed Layer Thickness

Influence of seed layer thickness on well-aligned ZnO nanorods via hydrothermal method

2017 ◽  
Vol 4 (5) ◽  
pp. 6336-6341 ◽  
Author(s):  
Supawadee Pokai ◽  
Puenisara Limnonthakul ◽  
Mati Horprathum ◽  
Pitak Eiamchai ◽  
Viyapol Pattantsetakul ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Layer Thickness ◽  
Seed Layer ◽  
Zno Nanorods ◽  
Seed Layer Thickness

EFFECT OF PRE-HEATING AND SEED LAYER ON HYDROTHERMAL GROWTH AND OPTICAL PROPERTIES OF ZINC OXIDE NANORODS

2011 ◽  
Vol 10 (04n05) ◽  
pp. 845-849
Author(s):  
GAURAV SHUKLA ◽  
ALIKA KHARE
Keyword(s):  
Optical Properties ◽  
Seed Layer ◽  
Zno Nanorods ◽  
Pulsed Laser ◽  
Heating Time ◽  
Hydrothermal Growth ◽  
Zinc Oxide Nanorods ◽  
Growth Time ◽  
Oxide Nanorods ◽  
Reported Effect

Hydrothermal growth of highly c-axis oriented ZnO nanorods with high aspect ratio on pulsed laser deposited ZnO seed layer is reported. Effect of pre-heating time, growth time and seed layer on the structural, morphological and optical properties of ZnO nanorods is presented. The possible growth mechanism for ZnO nanorods is also discussed.

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