Single-Step Magnetic Patterning of Iron Nanoparticles in a Semiconducting Polymer Matrix

✍ Scribed by Jitendra Kumar; Rajiv K. Singh; Satya B. Samanta; Ramesh C. Rastogi; Ramadhar Singh

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 290 KB
• Volume: 207
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.200600260

✦ Synopsis

Abstract

Summary: A cost‐effective chemical synthesis and single‐step magnetic patterning of iron nanoparticles (size ≈100 nm) in a semiconducting P3OT polymer matrix is reported wherein Fe nanostructures (≈150 ± 50 nm) are periodically aligned with π‐conjugated P3OT chains to form a nanomagnet‐semiconductor‐nanomagnet (Fe‐π‐Fe) structure. The resultant periodic patterning has been characterized by XRD, SEM and AFM techniques and is attributed to the intrinsic alignment of Fe at the nanometer‐scale level in a conjugated polymer matrix under the influence of a magnetic field. Such a P3OT/Fe matrix may find application in magnetic memory devices.

AFM image in nanometers showing the periodic nanostructuring of P3OT‐Fe matrices when the P3OT‐Fe nanocomposite films were grown under an applied magnetic field.

imageAFM image in nanometers showing the periodic nanostructuring of P3OT‐Fe matrices when the P3OT‐Fe nanocomposite films were grown under an applied magnetic field.