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ZnO nanofibrous-based materials required for sensors and dye-solar cells have been grown on tin oxide/glass substrates by magnetron sputtering. Synthesis regimes have been identified that give nanoporous and nanofibrous morphologies of depositions as shown by SEM. The structural properties of the nanomaterial have been characterized by X-ray diffraction. Vibrational properties have been investigated...
For development of ZnO nanorods-based heterostructures an environmentally benign synthesis process and fabrication route are required. Zinc oxide nanorod arrays have been grown on (0001) sapphire substrates by a rapid hydrothermal method (in 15 min) from a solution of zinc sulfate and sodium hydroxide. Two different synthesis regimes have been identified which give different morphologies of depositions...
In present days in-depth behaviour characterization of multifunctional deposited films for MEMS/BIO-MEMS applications, showed the need of adequate properties, in order to assure the demanded designed functions for envisaged applications, such as: physical, chemical, mechanical, tribological and biocompatible. The development of new materials for films deposition with high potential to be used in BIO-MEMS...
We present the results of a structural and compositional investigation of Al-doped thin films obtained by sol-gel deposition on Si/SiO2 substrates. Taking into consideration the layer by layer deposition process and that the films contain 1–10 successive layers, the evolution of structure and elemental composition, especially Al concentration in the films were investigated by energy dispersive X-ray...
Some p-type and n-type ZITO transparent and conductive films of 300 nm thickness, have been deposited by vacuum thermal evaporation and oxidation in air on different substrates. The electrical and optical properties of the thin films have been studied as a function of chemical composition, substrate nature and annealing conditions. X-ray diffraction and scanning electron microscopy were used in order...
Gallium doped zinc oxide, GZO, thin films have been deposited onto glass substrate by RF magnetron sputtering at various substrate temperatures. The electrical and optical properties of the thin films have been studied as a function of substrate temperature. X-ray diffraction was used in order to investigate thin film structures. The thin film structure was stabilised by heating the samples in air...
This paper focuses on physical properties of ZnSe thin films and photovoltaic parameters of ZnSe/CdTe thin film solar cells. X-ray analysis and SEM images show that ZnSe films are polycrystalline and exhibit wurtzite-zinc-blende structure. ZnSe/CdTe solar cells show an efficiency of about 4.7%. The external quantum efficiency (EQE) for these cells shows that the shape of these characteristics depends...
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