Optical characterisation of cadmium doped Fe3O4 ferrofluids by co-precipitation method
2020
Abstract Cadmium doped Fe3O4 ferrofluids were synthesised by coprecipitation method. The synthesized ferrofluids were characterized by various characterization techniques. The structural analysis was done using X-ray diffraction (XRD). Fourier transform infrared spectroscopy was carried out for the prepared samples and optical studies were done using Ultra violet-visible spectroscopy. The nonlinear optical properties were studied using Z-Scan technique. The prepared sample exhibits visible magnetic properties. X-ray diffraction technique confirms the spinal structure of the ferrites. The band gap of the samples was determined from Ultraviolet visible spectroscopy. Fourier transform infrared spectral analysis reveals that the prepared samples are coated with the oleic acid and shows the peaks for O H Stretching, C N Stretching, C C Stretching, and N C O Stretching. The Z Scan reveals the cadmium concentration dependent nonlinear optical property of the prepared samples.
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