Visible light photoconductivity studies of gold nanoparticle embedded ZnO thin films for photo detector application

2020 ◽  
Vol 35 (11) ◽  
pp. 115004 ◽  
Author(s):  
Muddam Raja Sekhar ◽  
Rashmi Ranjan Kumar ◽  
Suman Kumari ◽  
Ranjit Laha ◽  
Saurabh Kumar Pandey ◽  
...  
Keyword(s):  
Thin Films ◽  
Visible Light ◽  
Gold Nanoparticle ◽  
Zno Thin Films

Enhanced short wave IR third order nonlinearity of gold nanoparticle embedded ZnO thin films

2013 ◽  
Vol 30 (8) ◽  
pp. 2226 ◽  
Author(s):  
S. Akbar Ali ◽  
P. B. Bisht ◽  
B. S. Kalanoor ◽  
Anuradha Patra ◽  
S. Kasiviswanathan
Keyword(s):  
Thin Films ◽  
Gold Nanoparticle ◽  
Short Wave ◽  
Zno Thin Films ◽  
Third Order ◽  
Third Order Nonlinearity

Highly supportive hydrogen peroxide as a hole scavenger to improve the visible light water splitting activity of flake-like Co-doped ZnO thin films

Solar Energy ◽  
2019 ◽  
Vol 191 ◽  
pp. 151-160 ◽  
Author(s):  
Adem Sreedhar ◽  
I. Neelakanta Reddy ◽  
Qui Thanh Hoai Ta ◽  
Eunbin Cho ◽  
Jin-Seo Noh
Keyword(s):  
Thin Films ◽  
Hydrogen Peroxide ◽  
Visible Light ◽  
Water Splitting ◽  
Zno Thin Films ◽  
Light Water ◽  
Hole Scavenger ◽  
Doped Zno ◽  
Co Doped

scholarly journals Investigation of the Visible Light-Sensitive ZnO Photocatalytic Thin Films

2020 ◽  
Vol 10 (2) ◽  
pp. 5524-5527
Author(s):  
M. M. Nadareishvili ◽  
G. Mamniashvili ◽  
D. Jishiashvili ◽  
G. Abramishvili ◽  
C. Ramana ◽  
...  
Keyword(s):  
Thin Films ◽  
Visible Light ◽  
Light Absorption ◽  
Zno Thin Films ◽  
Silver Clusters ◽  
Light Spectrum ◽  
High Concentration ◽  
Optical Studies ◽  
Absorption Of Light ◽  
Visible Area

ZnO photocatalytic thin films deposited on a glass substrate are obtained by chemical spraying technique, and they are active in the visible light spectrum. Optical studies have shown that ZnO thin films doped by nickel impurities absorb visible light at wavelengths from 400nm to 600nm. At the same time, this absorption rate increases with the increase of concentration of nickel impurities. At high concentration (5%), the absorption of light is reduced in the visible area, but after heat treatment at 6000C the light absorption in these samples improves, which allows us to conclude that the observed effect is caused by a violation of the homogeneity of the distribution of nickel impurities and the creation of agglomerates. Decoration of ZnO thin film surfaces by silver clusters improves light absorption, as it happens to the nanopowders, but in the case of thin films, this effect is much smaller. Experiments on methylene blue determine the significance of photocatalytic activity in the visible area of sun irradiation of ZnO thin films containing nickel impurities, which are obtained by chemical spraying technique.

Synthesis of ZnO Nanorod Arrays on Chaleted Sol-Gel-Derived ZnO Thin Films and its Optical Absorption in Visible-Light Region

2013 ◽  
Vol 750-752 ◽  
pp. 253-258
Author(s):  
Li Rong Yang ◽  
Jun Cong Wei ◽  
Li Zhang ◽  
Hai Bin Chen
Keyword(s):  
Thin Films ◽  
Visible Light ◽  
Sol Gel ◽  
Zno Nanorods ◽  
Zno Thin Films ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Practical Applications ◽  
Absorbance Spectra

Well-aligned ZnO nanorod arrays on Chaleted Sol-Gel-Derived ZnO thin films was achieved at a temperature of 90°C by a surfactant-assisted soft chemical approach. The nanorod arrays were characterized by XRD, SEM, XPS, and UV-Vis absorbance spectra. The ZnO nanorod arrays are wurtzite crystal stuctures preferentially orienting in the direction of the c-axis and ZnO nanorods are grown verticallyon the substrate. The XPS analysis shows the Zn:O ratio of ZnO nanorod arrays near is 1:1. The UV-Vis absorbance spectra indicate that ZnO nanorod arrays have absorption of visible-light as well as ultraviolet-light. Therefore, the ZnO nanorods may be good candidates for visible-light photocatalysis materials from the viewpoint of practical applications.

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