We demonstrated an ITO-free, highly transparent organic solar cell with the potential to be integrated into window panes for energy harvesting purposes. A transparent, conductive ZnO/Ag/ZnO multilayer electrode and a Ag:Ca thin film electrode were used in this transparent device as the bottom and top electrode, respectively. To further improve the transmittance of the solar cell, the thickness ...

Ga-doped ZnO [GZO] thin films were employed for the transparent electrodes in dye-sensitized solar cells [DSSCs]. The electrical property of the deposited GZO films was as good as that of commercially used fluorine-doped tin oxide [FTO]. In order to protect the GZO and enhance the photovoltaic properties, a TiO2 blocking layer was deposited on the GZO surface. Then, TiO2 nanoparticles were coat...

In this study, ZnO/TiO2 and ZnO/Nb2O5 photocatalysts were evaluated in the river pollution remediation wastewater treatment from textile factories, thus, target pollutants selected for study enteropathogenic bacteria commercial dyes. The mixed oxide systems extensively analyzed order to explore their physicochemical properties. From analysis, it was found that coupling of two oxides did not mod...

The rapid recombination of photogenerated electron-hole pairs is one the main reasons for limiting photocatalytic efficiency semiconductor photocatalysts. This paper investigates and analyzes two methods to improve separation lifetimes pairs: heterojunction metal electron sink. As a specific example, an Au-TiO2-ZnO composite film with sandwich structure prepared. energy level gradient formed at...

The degradation of pyridine, widely used in the synthesis of vitamins, drugs, rubber chemicals, herbicides and pesticides, can be photocatalyzed by semiconductor catalysts. Since zinc oxide promotes faster pyridine photocatalytic oxidation reactions than TiO2, the former appears to be a suitable alternative to TiO2 for water treatment contaminated with pyridine. The photodegradation efficiency ...

Photocatalysis is proven to be the most efficient and environmentally friendly method for degradation of organic pollutants in water purification. To meet requirement large-scale treatment, there are two important points: One lifetime chemical stability photocatalyst material, especially complex harsh aqueous conditions. The other ease synthesis such photocatalysts with specific nano-morphology...

Nanopartículas de Ag suportadas em TiO2 (Ag-TiO2) foram usadas como catalisador na geração de vapor frio induzida por radiação UV com ácido fórmico, acoplado à absorção atômica para determinação do mercúrio total em amostras analíticas. A atividade redutora de Ag-TiO2 foi comparada com dois catalisadores semicondutores: TiO2 não modificado e ZnO. O efeito do tipo de catalisador, sua concentraçã...

ZnO and TiO2 are semiconductor nanomaterials that widely used in photocatalysis. However, the relatively high recombination rate low quantum yield of photogenerated electron–hole pairs limit their practical applications. In this study, a series TiO2/ZnO/diatomite composites with various compositions were successfully prepared via two-step precipitation method. They exhibited stronger UV–visible...