Formation mechanism of NdSi3N5 nanocrystals via hot-injection and heat-up methods

Abstract NdSi3N5 nanoparticles were successfully synthesized and stabilized with hot injection and heat up methods. We have, therefore, investigated the influence of the heating time (ta) variation to study the film morphology, structural and optical properties. Deep demonstrations based on X-ray diffraction, Raman spectroscopy, X-ray fluorescence analysis and Fourier transform infrared spectroscopy reveal the formation of the expectant NdSi3N5 compound for optoelectronic devices. The results showed that phase separation occurs during the annealing process due to the condensation of the Si excess; bring about in orthorhombic phase stability. Basing on bonds confinement model, the result of Raman spectroscopy has surprisingly revealed an important property of nano-structuration behavior as detected by high-resolution scanning electron microscopy. The resulting material has interesting physical properties, which are sought after in many optoelectronic industries.