From Event: SPIE Organic Photonics + Electronics, 2017
Iron oxide nanoparticles (IONPs) are among the most promising candidates for nano-scale magnetic memory applications due to their excellent magnetic properties. The information can be stored depending on the magnetization of the particles. The general drawback of IONPs however is the lack of ferromagnetism in IONPs at room temperature. To overcome this issue, doping of IONPs with cobalt is suggested. In this contribution we present a systematic study of Co doped IONPs using heat-up synthesis methods (thermal decomposition), wherein different synthesis parameters are surveyed and their effect on the particle size, stoichiometry of cobalt within the spinel ferrite nano crystals (CoxFe3-xO4) and magnetic properties are investigated. The synthesis was optimized to obtain sub-20 nm highly crystalline and monodisperse ferromagnetic nanoparticles with optimum magnetization and coercivity values. The particles were further modified by grafting polymerization from the surface of nanoparticles. Polymeric shells of different molecular weight are obtained, which allowed well dispersion of the ferromagnetic nanoparticles in common organic solvents. Nanoparticles can be solution processed to form a ferromagnetic thin-film. Solution processable magnetic films can open a new avenue in the low-cost non-volatile memory application.
Hamed Sharifi Dehsari, Anielen Halda Ribeiro, and Kamal Asadi, "Toward solution processed magnetic nanoparticles for non-volatile memory applications (Conference Presentation)," Proc. SPIE 10366, Hybrid Memory Devices and Printed Circuits 2017, 103660J (Presented at SPIE Organic Photonics + Electronics: August 11, 2017; Published: 19 September 2017); https://doi.org/10.1117/12.2274189.5581158735001.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the conference proceedings. They include the speaker's narration along with a video recording of the presentation slides and animations. Many conference presentations also include full-text papers. Search and browse our growing collection of more than 12,000 conference presentations, including many plenary and keynote presentations.