Resolving the Structure and Magnetic Properties of FePc/CdSe Organic/Inorganic Semiconducting Nanocomposite

The exploration of diverse methodologies for creating hybrid organic/inorganic semiconducting nanocomposites represents a significant area of scientific inquiry, driven by the escalating demand to cater to magnetic-based technologies. In this work, we employed a straightforward solid-state calcination process to fabricate FePc/CdSe QDs nanocomposites with two distinct ratios, specifically 1:1 and 3:5. Structural analysis and the assessment of magnetic properties of these nanocomposites were conducted utilizing a comprehensive array of techniques, including X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), Mössbauer spectroscopy, and vibrating sample magnetometry (VSM). Our investigation substantiates the formation of nanocomposites comprising FePc molecules, CdSe QDs, and γ-Fe ₂ O ₃ nanoparticles. Notably, these nanocomposites demonstrate a soft ferromagnetic behaviour, serving as a stark contrast to the diamagnetic behaviour observed in original CdSe QDs.