Co-reduction synthesis of new Ln(x)Sb(2-x)S(3) (Ln: Nd3+, Lu3+, Ho3+) nanomaterials and investigation of their physical properties

Title
Co-reduction synthesis of new Ln(x)Sb(2-x)S(3) (Ln: Nd3+, Lu3+, Ho3+) nanomaterials and investigation of their physical properties
Author(s)
주상우알레미[알레미]요네스피로즈살라리칸다르[칸다르]몰살리[몰살리]민봉기
Keywords
SB2S3 THIN-FILMS; SINGLE-CRYSTALS; SPECTROSCOPIC PROPERTIES; HYDROTHERMAL SYNTHESIS; NANOCRYSTALS; PHOTOLUMINESCENCE; LUMINESCENCE; ANTIMONY; IONS; EU3+
Issue Date
201107
Publisher
ELSEVIER SCIENCE BV
Citation
PHYSICA B-CONDENSED MATTER, v.406, no.14, pp.2801 - 2806
Abstract
New Ln(x)Sb(2-x)S(3) (Ln: Lu3+, Ho3+, Nd3+)-based nanomaterials were synthesized by a co-reduction method. Powder XRD patterns indicate that the Ln(x)Sb(2-x)S(3) crystals (Ln=Lu3+, Ho3+, x=0.00-0.1 and Ln=Nd3+, x=0.00-0.08) are isostructural with Sb2S3. SEM images show that doping of Lu3+ and Ho3+ ions in the lattice of Sb2S3 results in nanorods while that in Nd3+ leads to nanoflowers. UV-vis absorption and emission spectroscopy reveal mainly electronic transitions of the Ln(3+) ions in case of Ho3+ and Nd3+ doped nanomaterials. Emission spectra show intense transitions from excited to ground state of Ln(3+). Emission spectra of doped materials, in addition to the characteristic red emission peaks of Sb2S3, show other emission bands originating from f-f transitions of the Ho3+ ions. TGA curves indicated that Sb2S3 has the highest thermal stability. The electrical conductance of Ln-doped Sb2S3 is higher than undoped Sb2S3, and increase with temperature. (C) 2011 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/24897http://dx.doi.org/10.1016/j.physb.2011.04.032
ISSN
0921-4526
Appears in Collections:
공과대학 > 기계공학부 > Articles
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