Preparation and characterization of Eu2O3 nanometer thin films by pulse ultrasonic spray pyrolysis method

2000 ◽  
Vol 35 (12) ◽  
pp. 2057-2062 ◽  
Author(s):  
Shengyue Wang ◽  
Wei Wang ◽  
Yitai Qian
Keyword(s):  
Thin Films ◽  
Spray Pyrolysis ◽  
Ultrasonic Spray Pyrolysis ◽  
Spray Pyrolysis Method ◽  
Ultrasonic Spray ◽  
Pyrolysis Method ◽  
Ultrasonic Spray Pyrolysis Method

Effect of Cu/In Ratio on Properties of CuInS2 Films Prepared by Ultrasonic Spray Pyrolysis Method

2011 ◽  
Vol 199-200 ◽  
pp. 1936-1939
Author(s):  
Xiao Zhang ◽  
Hua Wang ◽  
Ji Wen Xu ◽  
Ling Yang ◽  
Ming Fang Ren
Keyword(s):  
Thin Films ◽  
Spray Pyrolysis ◽  
Ultrasonic Spray Pyrolysis ◽  
Xrd Analysis ◽  
Chalcopyrite Structure ◽  
Spray Pyrolysis Method ◽  
Visible Absorption ◽  
Ultrasonic Spray ◽  
Pyrolysis Method ◽  
Ultrasonic Spray Pyrolysis Method

CuInS2 thin films were prepared on heated glass substrates by ultrasonic spray pyrolysis method. Structure, surface morphology and properties of films with different Cu/In ratios have been investigated. X-ray diffraction (XRD) analysis demonstrated that as-prepared CuInS2 thin films with chalcopyrite structure have a preferential orientation along the (112) direction. SEM study shows films are relatively dense and smooth, but the much bigger grains and the large coherent agglomerates appear in films (Cu/In>1.25) due to the appearance of phase Cu2S. CuInS2 thin film (Cu/In=1.25) has a strong visible absorption and its energy band gap comes up to 1.45eV.

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