Experimental and Numerical Evaluation on Optical Properties of Al-Doped ZnO Film Materials

2014 ◽  
Vol 97 (11) ◽  
pp. 3549-3554 ◽  
Author(s):  
Ping Yang ◽  
Lin Deng ◽  
Liqiang Zhang ◽  
Haiying Yang
Keyword(s):  
Optical Properties ◽  
Numerical Evaluation ◽  
Zno Film ◽  
Doped Zno

Structural, morphological and optical properties of Cd doped ZnO film grown on a- and r-plane sapphire substrate by MOCVD

2014 ◽  
Vol 311 ◽  
pp. 648-658 ◽  
Author(s):  
A. Fouzri ◽  
M.A. Boukadhaba ◽  
A. Touré ◽  
N. Sakly ◽  
A. Bchetnia ◽  
...  
Keyword(s):  
Optical Properties ◽  
Sapphire Substrate ◽  
Zno Film ◽  
Doped Zno

Effect of K–N on the structural and optical properties of K–N co-doped ZnO film

2011 ◽  
Vol 14 (3-4) ◽  
pp. 257-260 ◽  
Author(s):  
Yue Zhao ◽  
Mingtao Zhou ◽  
Zhiyong Lv ◽  
Zhao Li ◽  
Jian Huang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Zno Film ◽  
Structural And Optical Properties ◽  
Doped Zno ◽  
Co Doped

A new phase and optical properties of the N-doped ZnO film

2010 ◽  
Vol 45 (9) ◽  
pp. 1046-1050 ◽  
Author(s):  
Yue Zhao ◽  
Zhao Li ◽  
Zhiyong Lv ◽  
Xiaoyan Liang ◽  
Jiahua Min ◽  
...  
Keyword(s):  
Optical Properties ◽  
Zno Film ◽  
Doped Zno ◽  
New Phase

Microstructure and optical properties of nitrogen-doped ZnO film

2013 ◽  
Vol 22 (2) ◽  
pp. 024202 ◽  
Author(s):  
Xian-Wei Zhao ◽  
Xiao-Yong Gao ◽  
Xian-Mei Chen ◽  
Chao Chen ◽  
Meng-Ke Zhao
Keyword(s):  
Optical Properties ◽  
Zno Film ◽  
Nitrogen Doped ◽  
Doped Zno

The Structural and Optical Properties of(Cu, Al):ZnO Films

2013 ◽  
Vol 641-642 ◽  
pp. 547-550 ◽  
Author(s):  
Ying Xiang Yang ◽  
Hong Lin Tan ◽  
Cheng Lin Ni ◽  
Chao Xiang
Keyword(s):  
Optical Properties ◽  
Optical Band Gap ◽  
Sol Gel ◽  
Zno Films ◽  
X Ray Diffraction ◽  
Zno Film ◽  
Structural And Optical Properties ◽  
X Ray ◽  
Grain Sizes ◽  
Doped Zno

Un-doped and (Cu, Al)-doped ZnO thin films were prepared by sol-gel spin coating technique on glass substrate. The effect of(Cu, Al)incorporation on the structural, morphological and optical properties of the Zinc oxide (ZnO)film was investigated by means of X-ray diffraction, scanning electron microscopy and UV-vis spectrophotometer. It has been found that the grain sizes, Optical band gap and the preferred orientation growth of (002) plane were decreased with increasing of (Cu, Al) dopants amount in ZnO films.

Effect of Thickness on Micro-Structural and Optical Properties of Al-Doped ZnO Films Prepared by Sol-Gel Spin Coating

2017 ◽  
Vol 17 ◽  
pp. 171-178 ◽  
Author(s):  
T. Ganesh ◽  
K. Perumal ◽  
R. Kumar ◽  
N. Bhaskar
Keyword(s):  
Optical Properties ◽  
Optical Absorption ◽  
Film Thickness ◽  
Spin Coating ◽  
Structural Parameters ◽  
Sol Gel ◽  
Zno Films ◽  
Zno Film ◽  
Structural And Optical Properties ◽  
Doped Zno

Aluminium (Al) doped Zinc oxide (ZnO) thin films of different thicknesses were prepared on glass substrates by sol-gel spin coating method. The effect of thicknesses on micro-structural and optical properties was investigated for transparent conducting oxide (TCO) application in solar cells and other optoelectronic applications. Grazing incidence x-ray diffraction (GIXRD) showed maximum orientation along (002) plane of c-axis. The variation of different structural parameters like crystallite size, micro-strain, c-axis strain, dislocation density as a function of film thickness was investigated. The FTIR spectra confirmed the formation of Al-doped ZnO film. FESEM images showed spherical shaped nanosized grains and formation of micro pores. The optical absorption increased and absorption peak shifted towards longer wavelength (red shift) with increase in the thickness of the film respectively. The optical transmittance of all the films has a transparency of more than 75% in the visible region. The optical band gap (Eg) decreased with increase in the film thickness. The diffused reflectance (DRS) showed very low reflectance in the region of 400-800 nm, but increased in the 800-900 nm region. Photoluminescence (PL) spectra of the prepared films showed intense band edge UV and low intense visible emissions respectively. The effect of thickness of Al-doped ZnO film on micro-structure, surface morphology, optical absorption and transmittance, diffused reflectance and PL have been investigated and the results are reported.

Optical Properties and Interband Transitions of ZnO and Cu-Doped ZnO Films Revealed by Spectroscopic Ellipsometry Measurement

2015 ◽  
Vol 1112 ◽  
pp. 124-127
Author(s):  
Resti Marlina ◽  
Andrivo Rusydi ◽  
Yudi Darma
Keyword(s):  
Optical Properties ◽  
Zno Films ◽  
Second Derivative ◽  
Effective Number ◽  
Zno Film ◽  
Derivative Spectra ◽  
Doped Zno ◽  
Cu Dopant ◽  
Second Derivative Spectra ◽  
Excitonic States

Optical properties analysis of ZnO and Cu-doped ZnO films on Pt substrate have been probed by using Spectroscopic Ellipsometry (SE) at room temperature. Here, we study the optical transitions and the evolution of excitonic states by means of the critical points (CP) analysis. The second derivative spectra of dielectric function (CP analysis) show the transition of excitonic peak at the fundamental absorption edge (E0). Corresponds to e1 spectra, the peak of refractive index (n) at around 3.3 eV is broaden by introducing Cu dopant. This peak is assigned as excitonic states and the peak broadening is mainly due to the screening of excitons. This excitonic screening is more pronounced in the second derivative spectra of dielectric function where the peaks intensity is decreased upon Cu dopant. In additions, effective number of carrier concentrations of ZnO film shows a high number as high as ~1022 cm-3. Furthermore, the addition of Cu doping -in this case 8 in at.%- does not significantly affect the effective number of ZnO film carrier concentration. This result confirms the strong interaction between ZnO film and Pt substrate and negligible contribution of Cu dopant for carrier concentration.

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