scholarly journals Optical and structural properties of nanostructured copper oxide thin films as solar selective coating prepared by spray pyrolysis method

2017 ◽  
Vol 35 (2) ◽  
pp. 355-361 ◽  
Author(s):  
M. Asadi ◽  
S.M. Rozati

Abstract Copper (II) oxide thin films were prepared by spray pyrolysis method on soda-lime glass substrates using copper acetate precursor solution. Influence of substrate temperature on structural and optical properties was investigated. Structural analysis of these layers were carried out by X-ray diffraction (XRD). Single phase nature and high crystallinity of CuO nanostructures were observed on XRD patterns. The general appearance of the films was uniform and black in color. FT-IR transmittance spectra confirmed the results from the XRD study. Selective solar absorber coatings of copper oxide (CuO) on stainless steel substrates was prepared by spray pyrolysis method. Effect of deposition temperature on optical properties of thin films was investigated. Optical parameters, absorbance (α) and emittance (α) were evaluated from reflectance data. It can be deduced that the porous structure, such as a light traps, can greatly enhance absorbance, while the composition, thickness and roughness of thin films can greatly influence the emissivity. Single phase nature and high crystallinity of CuO nanostructures were observed by XRD patterns. Solar absorbance of thin films were in the range of 85 % to 92 %.

Coatings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1392
Author(s):  
Oleksii Diachenko ◽  
Jaroslav Kováč ◽  
Oleksandr Dobrozhan ◽  
Patrik Novák ◽  
Jaroslav Kováč ◽  
...  

Copper oxide thin films were obtained using pulsating spray pyrolysis method. The morphological, structural, and optical properties of fabricated films were studied. X-ray analysis revealed that the CuO thin films are single-phase. The study of films morphology by SEM and AFM methods showed that the obtained films have a fairly high surface roughness and contain grains of different shapes and sizes. It was found that the obtained films of copper oxide have high values of the absorption coefficient, which confirms the possibility of their use as absorbing layers for solar cells. The obtained values of the optical band gap of the material are in the range from 1.45 eV to 1.60 eV. Raman spectroscopy revealed three modes A1g, B1g, and B2g, of the crystal structure of monoclinic CuO. The devices based on p-type copper oxide are promising for solar cells fabrication because they can reduce production costs, due to their low cost and inexpensive production methods compared to silicon solar cells fabrication.


Graphene ◽  
2016 ◽  
Vol 05 (03) ◽  
pp. 143-154 ◽  
Author(s):  
M. S. Eluyemi ◽  
M. A. Eleruja ◽  
A. V. Adedeji ◽  
B. Olofinjana ◽  
O. Fasakin ◽  
...  

2019 ◽  
Vol 387 (1) ◽  
pp. 1800198 ◽  
Author(s):  
C. H. Jadhav ◽  
Pavan K. Pagare ◽  
K. K. Inamdar ◽  
L. D. Kadam

Optik ◽  
2014 ◽  
Vol 125 (18) ◽  
pp. 5112-5115 ◽  
Author(s):  
S.M. Thahab ◽  
Adel H. Omran Alkhayat ◽  
Salah M. Saleh

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