scholarly journals Characteristics of SnO<sub>2</sub>:F Thin Films Deposited by Ultrasonic Spray Pyrolysis: Effect of Water Content in Solution and Substrate Temperature

2012 ◽  
Vol 03 (10) ◽  
pp. 690-696 ◽  
Author(s):  
Mario A. Sánchez-García ◽  
Arturo Maldonado ◽  
Luis Castañeda ◽  
Rutilo Silva-González ◽  
María de la Luz Olvera
Keyword(s):  
Thin Films ◽  
Substrate Temperature ◽  
Water Content ◽  
Spray Pyrolysis ◽  
Ultrasonic Spray Pyrolysis ◽  
Effect Of Water ◽  
Ultrasonic Spray

Deposition of ZnO:Al Thin Films by Ultrasonic Spray Pyrolysis

2010 ◽  
Vol 150-151 ◽  
pp. 1617-1620 ◽  
Author(s):  
Lin Dong ◽  
Teng Fei Pei ◽  
Hong Qing Li ◽  
Da Yan Xu
Keyword(s):  
Thin Films ◽  
Substrate Temperature ◽  
Spray Pyrolysis ◽  
Doping Level ◽  
Spray Pyrolysis Technique ◽  
Ultrasonic Spray Pyrolysis ◽  
Atmospheric Environment ◽  
Molar Ratio ◽  
Zno Films ◽  
Ultrasonic Spray

Transparent conducting Al-doped ZnO films were prepared by ultrasonic spray pyrolysis technique on amorphous glass substrates under atmospheric environment with substrate temperature ranging from 350 to 500 , and Al/ZnO molar ratio of 1, 3 and 5 %. The impacts of the substrate temperature and doping level on structural, optical and electrical properties of the ZnO:Al thin films were investigated. The texture coefficient calculated from XRD data indicates that the substrate temperature at 450 and the doping level of 3 at.% is beneficial for crystal growth along (002) orientation. The Band gap (Eg) and Urbach parameter (E0) deduced by the optical absorption edge increases and decreases with the increase of Al doping level, respectively. The increase in sheet resistance is assumed to be associated with the decrease in preferential orientation and formation of Al2O3-x clusters.

scholarly journals Strong texture tuning along different crystalline directions in glass-supported CeO2 thin films by ultrasonic spray pyrolysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Inti Zumeta-Dubé ◽  
José Manuel García Rangel ◽  
Jorge Roque ◽  
Issis Claudette Romero-Ibarra ◽  
Mario Fidel García Sánchez
Keyword(s):  
Thin Films ◽  
Spray Pyrolysis ◽  
Spray Pyrolysis Technique ◽  
Morphological Characteristics ◽  
Ultrasonic Spray Pyrolysis ◽  
Cost Effective ◽  
Growth Direction ◽  
Large Area ◽  
Smart Windows ◽  
Ultrasonic Spray

AbstractThe strong facet-dependent performance of glass-supported CeO2 thin films in different applications (catalysis, smart windows, etc.) has been the target of diverse fundamental and technological approaches. However, the design of accurate, cost-effective and scalable methods with the potential for large-area coverage that produce highly textured glass-supported CeO2 thin films remains a technological challenge. In the present work, it is demonstrated that under proper tuning conditions, the ultrasonic spray pyrolysis technique enables one to obtain glass-supported polycrystalline CeO2 films with noticeable texture along both the (100) and (111) directions, as well as with randomly oriented crystallites (no texture). The influence of flow rates, solution molarity, and substrate temperature on the texture and morphological characteristics, as well as optical absorption and Raman response of the deposited films, is evaluated. The obtained results are discussed on the basis of the combined dependence of the CeO2-exposed surfaces on the thermodynamic stability of the corresponding facets and the reaction kinetics, which modulate the crystallite growth direction.

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