A new route to zinc-blende CdSe nanocrystals: Mechanism and synthesis
Article Abstract:
A mechanism of forming of CdSe nanocrystals in the high boiling point solvents with long alkaline chains and a Non-TOP-Based route to zinc-blende CdSe nanocrystals is reported. This mechanism makes it possible to achieve high-quality CdSe nanocrystals with sharp ultraviolet and visible (UV-vis) absorption peaks, controllable size (2.0-5.0 nm), bright photoluminescence (PL), narrow PL full width of half-maximum (fwhm)(29-48 nm), and high PL quantum yield (up to 60%) without any size sorting.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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A full multiple scattering model for the analysis of time-resolved X-ray difference absorption spectra
Article Abstract:
A full multiple theoretical model (MAXN) is applied to fit picosecond difference X-ray absorption spectra at the ruthenium L3 edge upon photoexcitation of aqueous [[[Ru.sup.III][(bpy).sub.3]].sup.2+]. The fitting difference spectra have allowed an increase in sensitivity, such that slight structural changes could be retrieved, which are not detected in fitting full spectra.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Synthesis of high quality zinc blende CdSe nanocrystals
Article Abstract:
Highly homogenous and luminescent CdSe colloidal nanocrystals in the less common zinc blende crystal structure are obtained at high temperature in a noncoordinating organic solvent. It is found that compared to standard colloidal CdSe preparations, the growth rate is considerably reduced, and the energy gap between the first two absorption bands becomes larger.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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