期刊
OPTICAL MATERIALS
卷 36, 期 1, 页码 31-35出版社
ELSEVIER
DOI: 10.1016/j.optmat.2013.06.023
关键词
Chemical synthesis; Magnetic properties; Optical properties; Nanostructures; Semiconductors
资金
- University of the Witwatersrand
- NRF
- CARNEGIE
Herein, we report on the synthesis of manganese chalcogenide nanoparticles using mild synthetic methods. The MnS nanoparticles were synthesised using a single-source precursor method with tetramethylthiuram disulfide as a ligand, whilst the MnSe nanoparticles were synthesised by reacting reduced elemental selenium with manganese. These synthetic methods resulted in crystalline MnS nanoparticles with wire-like morphology with high aspect ratio and MnSe nanorods that were nearly mono-dispersed. The absorption band-edges of both MnS and MnSe were blue-shifted from the reported bulk band-edges indicative of quantum confinement effects seen in nanoparticles. Furthermore, both MnS and MnSe showed paramagnetic characteristics with the ESR spectra showing broad single resonance peaks with g-values of 2.0064 and 2.0068 respectively. (C) 2013 Elsevier B.V. All rights reserved.
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