Abstract
The growth of epitaxial Ag nanoparticles doped (Bi, Pb)-2223 thin films on Si (111) substrates by pulsed laser deposition (PLD) and post-deposition oxygen annealing have been achieved. The phase identification and gross structural characteristics of synthesized films explored through X-ray diffractometer reveal that all the samples crystallize in orthorhombic structure. DC electrical resistivity measurements were done by the standard four-probe method and the results showed improvement in Tc by increasing Ag nanoparticles to 1.0 wt% which had a maximum enhancement in Tc for all investigated films. The surface morphology investigated through scanning electron microscope (SEM) and atomic force microscopy (AFM) results showed that an increase in Tc with the appropriate Ag nanoparticles addition in the samples is associated with the enhancement of Bi (Pb)-2223 phase formation.
Highlights
Since the discovery of Bi-based superconducting systems, a tremendous amount of work concerning preparation, superconducting properties, and the structure of these compounds has been carried out [1] [2]; a variety of potential applications of bulk materials as well as thin films in a number of cryoelectronic devices [3]-[5] have been reported
BPSCCO target before and after addition of Ag nanoparticles was entered in vacuum chamber 10−2 mbar, and Q-switched Nd:YaG pulse laser operated at 1064 nm wavelength, 500 mJ/pulse, the distance between substrate and target 2 cm and 700 mJ pulse energy for frequency 5 Hz
It is more suitable for pointing out the presence of both Bi (Pb)-2223 and Bi (Pb)-2212 phases with Bi (Pb)-2223 being the dominant phase
Summary
Since the discovery of Bi-based superconducting systems, a tremendous amount of work concerning preparation, superconducting properties, and the structure of these compounds has been carried out [1] [2]; a variety of potential applications of bulk materials as well as thin films in a number of cryoelectronic devices [3]-[5] have been reported. The BSCCO system mainly contains three phases in the general formula Bi2Sr2CanCun+1Oy (where n = 0, 1 and 2 refers to the number of CuO2 layers which yields 10, 85, 110 K transition temperatures, respectively) which commonly have a multiphase structure. How to cite this paper: Oboudi, S.F. and Mustafa, M.Q. (2016) Synthesis and Characterization of Ag Nanoparticles Addition on BPSCCO Superconducting Thin Films.
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