Magic-sized Cd3P2 II-V nanoparticles exhibiting bandgap photoemission

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DOIResolve DOI: http://doi.org/10.1021/jp907642b
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TypeArticle
Journal titleThe Journal of Physical Chemistry C, Letters
Volume113
Issue42
Pages1797917982; # of pages: 4
Subjectnanoparticles; synthesized; thermodynamically; photoemission; Cadmium acetate dihydrate (Cd(OAc)2·2H2O); tris(trimethylsilyl)phosphine ((TMS)3P); spectroscopy; magic-sized nanoparticles (MSNs)
AbstractThe very first single-sized Cd3P2 II−V nanoparticles were synthesized via a non-injection-based approach which was designed to be thermodynamically driven. The Cd3P2 nanoparticles were synthesized in a pure form and exhibited bright bandgap photoemission peaking at 455 nm with a full width at half-maximum (fwhm) of only 17 nm and narrow bandgap absorption peaking at 451 nm. Compared to those reported before with a fwhm of 50−150 nm, the newly developed Cd3P2 nanoparticles represent significant progress in synthesis with better design and control. Cadmium acetate dihydrate (Cd(OAc)2·2H2O) and tris(trimethylsilyl)phosphine ((TMS)3P) were used as Cd and P source compounds, respectively; the synthesis was carried out in 1-octadecene (ODE), a noncoordinating solvent. The novel Cd3P2 nanoparticles were further characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), powder X-ray diffraction (PXRD), and 113Cd and 31P solid-state NMR. These single-sized Cd3P2 nanoparticles are the first example of class II−V magic-sized nanoparticles (MSNs).
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences; NRC Institute for Microstructural Sciences
Peer reviewedYes
NPARC number16474627
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Record identifier644c4ab4-27e5-4c4e-9f8f-611f553cffde
Record created2011-02-15
Record modified2016-05-09
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