Synthesis, Structural and Optical Properties of TOPO and HDA Capped Cadmium Sulphide Nanocrystals, and the Effect of Capping Ligand Concentration
Joint Authors
Ebenso, Eno E.
Onwudiwe, Damian C.
Hrubaru, Madalina
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-19
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The thermal decomposition of bis(N,N-diallyldithiocarbamato)Cd(II) in a “one-pot” synthesis in tri-n-octylphosphine oxide (TOPO) and hexadecylamine (HDA) afforded CdS (TOPO-CdS and HDA-CdS) of varying optical properties and morphologies.
The influence of the ratio of the precursor concentration to the capping molecule, as a factor affecting the morphology and size of the nanoparticles, was investigated.
The particles varied in shape from spheres to rods and show quantum size effects in their optical spectra with clear differences in the photoluminescence (PL) spectra.
The PL spectrum of the HDA capped CdS nanoparticles has an emission maximum centred at 468, 472, and 484 nm for the precursor to HDA concentration ratio of 1 : 10, 1 : 15, and 1 : 20, respectively, while the TOPO capped nanoparticles show emission peaks at 483, 494, and 498 nm at the same concentration ratio.
Powdered X-ray diffraction (p-XRD) shows the nanoparticles to be hexagonal.
The crystallinity of the nanoparticles was evident from high resolution transmission electron microscopy (HRTEM) which gave well-defined images of particles with clear lattice fringes.
American Psychological Association (APA)
Onwudiwe, Damian C.& Hrubaru, Madalina& Ebenso, Eno E.. 2015. Synthesis, Structural and Optical Properties of TOPO and HDA Capped Cadmium Sulphide Nanocrystals, and the Effect of Capping Ligand Concentration. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1068764
Modern Language Association (MLA)
Onwudiwe, Damian C.…[et al.]. Synthesis, Structural and Optical Properties of TOPO and HDA Capped Cadmium Sulphide Nanocrystals, and the Effect of Capping Ligand Concentration. Journal of Nanomaterials No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1068764
American Medical Association (AMA)
Onwudiwe, Damian C.& Hrubaru, Madalina& Ebenso, Eno E.. Synthesis, Structural and Optical Properties of TOPO and HDA Capped Cadmium Sulphide Nanocrystals, and the Effect of Capping Ligand Concentration. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1068764
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1068764