Preparation of manganese doped cadmium sulfide nanoparticles in zincblende phase and their magnetic properties

Masafumi Nakaya, Itaru Tanaka, Atsushi Muramatsu

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In this study, the random dope of Mn into CdS nanoparticles in zincblende phase has been carried out under the mild reaction condition. The resulting nanoparticles were characterized by energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), X-ray diffractometer (XRD), UV-Vis spectrometer, PL spectrometer, and SQUID. EDX showed that the compositions of Mn doped CdS nanoparticles were readily controlled. TEM showed the particle sizes were not significantly affected by the compositions, retaining to be ca. 3 nm with a narrow size distribution. UV-Vis and PL spectra of the resulting nanoparticles showed the intra-Mn level may be affected by the quantum size effect. SQUID measurement showed that the resulting nanoparticles showed diamagnetism, paramagnetism and superparamagnetism dependent on Mn content.

Original languageEnglish
Pages (from-to)9003-9006
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume12
Issue number12
DOIs
Publication statusPublished - 2012 Dec

Keywords

  • Composition effect
  • Control of crystal structure
  • Magnetic semiconductor nanoparticle
  • Random dope of transition metal

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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