Structural and optical properties of copper doped ZnO films derived by sol–gel

2012 ◽  
Vol 258 (7) ◽  
pp. 3039-3044 ◽  
Author(s):  
M. Caglar ◽  
F. Yakuphanoglu
2013 ◽  
Vol 641-642 ◽  
pp. 547-550 ◽  
Author(s):  
Ying Xiang Yang ◽  
Hong Lin Tan ◽  
Cheng Lin Ni ◽  
Chao Xiang

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.


2017 ◽  
Vol 17 ◽  
pp. 171-178 ◽  
Author(s):  
T. Ganesh ◽  
K. Perumal ◽  
R. Kumar ◽  
N. Bhaskar

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.


2010 ◽  
Vol 152-153 ◽  
pp. 868-873 ◽  
Author(s):  
Xiu Ling Lv ◽  
Yu Bo Dou ◽  
Juan Wang ◽  
Ying Xu

Al doped ZnO thin films(AZO films) was prepared by sol-gel method. The influence of Parameters of different processes on the crystallization properties, micro-morphology and optical properties of this kind of films were studied, using by X-ray diffractometer, filed emission stereoscan, spectral photometer, hall admeasuring apparatus. The results indicated that the crystallization properties, micro-morphology and optical properties of Al doped ZnO films were best on the condition that the sol density was 0.5mol/L, hat treatment temperature is 600 and there is a 8-layer coating.


2008 ◽  
Vol 148 (1-3) ◽  
pp. 35-39 ◽  
Author(s):  
Fanyong Ran ◽  
Lei Miao ◽  
Sakae Tanemura ◽  
Masaki Tanemura ◽  
Yongge Cao ◽  
...  

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