scholarly journals Investigations on the structural, morphological, optical and electrical properties of undoped and nanosized Zn-doped CdS thin films prepared by a simplified spray technique

2014 ◽  
Vol 32 (4) ◽  
pp. 652-660 ◽  
Author(s):  
M. Anbarasi ◽  
V. Nagarethinam ◽  
A. Balu

AbstractCdS and Zn-doped CdS (CdS:Zn) thin films have been deposited on glass substrates by spray pyrolysis technique using a perfume atomizer. The influence of Zn incorporation on the structural, morphological, optical and electrical properties of the films has been studied. All the films exhibit hexagonal phase with (0 0 2) as preferential orientation. A shift of the (0 0 2) diffraction peak towards higher diffraction angle is observed with increased Zn doping. The optical studies confirmed that the transparency increases as Zn doping level increases and the film coated with 2 at.% Zn doping has the maximum transmittance of about 90 %. The sheet resistance (Rsh) decreases as the Zn-doping level increases and a minimum value of 1.113 × 103 Ω/sq is obtained for the film coated with 8 at.% Zn dopant. The CdS film coated with 8 at.% Zn dopant has the best structural, morphological and electrical properties.

2013 ◽  
Vol 652-654 ◽  
pp. 519-522
Author(s):  
Jun Chen ◽  
Yue Hui Hu ◽  
Hong Hao Hu ◽  
Yi Chuan Chen

Transparent thin films of Sn-doped ZnO (ZnO:Sn) were deposited onto silica glass substrates by the sol–gel method. The effect of different Sn doping on the crystallinity, structural, optical and electrical properties of ZnO:Sn thin films were investigated by XRD, SEM, UV-VIS spectrophotometer and four-point probe method respectively. Among all of ZnO:Sn thin films in this paper, Sn-doped with 2 at.% exhibited the best properties, the surface demonstrate an accumulative crystallization and hexagonal structure, with a high-preferential c-axis orientation, namely an average transmittance of 90% and the resistivity of 19.6 Ω·cm.


2013 ◽  
Vol 557 ◽  
pp. 53-59 ◽  
Author(s):  
A. Rmili ◽  
F. Ouachtari ◽  
A. Bouaoud ◽  
A. Louardi ◽  
T. Chtouki ◽  
...  

2011 ◽  
Vol 04 (04) ◽  
pp. 401-405 ◽  
Author(s):  
W. CHER ◽  
S. YICK ◽  
S. XU ◽  
Z. J. HAN ◽  
K. OSTRIKOV

Al -doped zinc oxide (AZO) thin films are deposited onto glass substrates using radio-frequency reactive magnetron sputtering and the improvements in their physical properties by post-synthesis thermal treatment are reported. X-ray diffraction spectra show that the structure of films can be controlled by adjusting the annealing temperatures, with the best crystallinity obtained at 400°C under a nitrogen atmosphere. These films exhibit improved quality and better optical transmittance as indicated by the UV-Vis spectra. Furthermore, the sheet resistivity is found to decrease from 1.87 × 10-3 to 5.63 × 10-4Ω⋅cm and the carrier mobility increases from 6.47 to 13.43 cm2 ⋅ V-1 ⋅ s-1 at the optimal annealing temperature. Our results demonstrate a simple yet effective way in controlling the structural, optical and electrical properties of AZO thin films, which is important for solar cell applications.


2018 ◽  
Vol 5 (3) ◽  
pp. 9519-9524 ◽  
Author(s):  
Worapot Sripianem ◽  
Alichapat Chuchuay ◽  
Pitcha Kiatthanabumrung ◽  
Natthida Saengow ◽  
Thanate Na Wichean ◽  
...  

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