Journal ArticleDOI
Mn 2 + as a Radial Pressure Gauge in Colloidal Core/Shell Nanocrystals
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TLDR
The radial dependence and magnitude of the pressure derived from the Mn2+ fluorescence shift are in good agreement with the spherically symmetric elastic continuum model and the 7% misfit between the core and the epitaxial shell.Abstract:
The fluorescence of Mn2+ doped in the shell of CdS/ZnS core/shell nanocrystals at radially controlled position is used as a local probe of pressure in the nanocrystal shell. The redshift of the fluorescence with increasing shell thickness indicates a pressure of more than 4 GPa for 7.5 monolayers of ZnS. The radial dependence and magnitude of the pressure derived from the Mn2+ fluorescence shift are in good agreement with the spherically symmetric elastic continuum model and the 7% misfit between the core and the epitaxial shell.read more
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Journal ArticleDOI
Semiconductor Nanocrystals: Structure, Properties, and Band Gap Engineering
Andrew M. Smith,Shuming Nie +1 more
TL;DR: Recent advances in the understanding of the atomic structure and optical properties of semiconductor nanocrystals are discussed and new strategies for band gap and electronic wave function engineering to control the location of charge carriers are discussed.
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Towards non-blinking colloidal quantum dots.
Benoit Mahler,Piernicola Spinicelli,Stéphanie Buil,Xavier Quélin,J.-P. Hermier,J.-P. Hermier,Benoit Dubertret +6 more
TL;DR: Novel CdSe-CdS core-shell quantum dots with thick crystalline shells with 68% of which do not blink when observed individually at 33 Hz for 5 min are synthesized, establishing a direct correlation between shell thickness and blinking occurrences.
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Synthesis and properties of colloidal heteronanocrystals
TL;DR: A critical review of recent developments in this rapidly expanding field, with emphasis on semiconductor HNCs (e.g., quantum dots and quantum rods), can be found in this paper.
Journal ArticleDOI
Aqueous Based Semiconductor Nanocrystals
Lihong Jing,Stephen V. Kershaw,Yilin Li,Xiaodan Huang,Yingying Li,Andrey L. Rogach,Mingyuan Gao +6 more
TL;DR: This review summarizes traditional and recent nonconventional, bioinspired, methods for the aqueous synthesis of colloidal semiconductor quantum dots (QDs) and describes the considerable progress in some selected QD applications such as in bioimaging and theranostics.
Journal ArticleDOI
Core/shell colloidal semiconductor nanoplatelets.
TL;DR: It is shown that core/shell nanoplatelets can be obtained with a 2D geometry that is conserved and the core/ shell structure appears very clearly on high-resolution, high-angle annular dark-field transmission electron microscope images, thanks to the difference of atomic density between the core and the shell.