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Doped Nanocrystals

Science, 2008
The critical role that dopants play in semiconductor devices has stimulated research on the properties and the potential applications of semiconductor nanocrystals, or colloidal quantum dots, doped with intentional impurities. We review advances in the chemical synthesis of doped nanocrystals, in the theoretical understanding of the fundamental ...
David J, Norris   +2 more
openaire   +2 more sources

NANOCRYSTAL SUPERLATTICES

Annual Review of Physical Chemistry, 1998
▪ Abstract  Ordered arrays, or superlattices, of metallic, insulating, or semiconducting quantum dots, represent an exciting new class of materials. These superlattices are often referred to as artificial solids, in which the nanocrystals take the place of atoms in traditional solids, and the packing arrangement of the nanocrystals determines the unit
Collier, C. P.   +2 more
openaire   +3 more sources

Platonic Gold Nanocrystals

Angewandte Chemie International Edition, 2004
Thiswork was supported by the Camille and Henry Dreyfus Foundation, Beckman Foundation, the National Science Foundation (CAREER) and Department of Energy. P.Y. isan Alfred P. Sloan Research Fellow.Work at the Lawrence Berkeley National Laboratory was supported by the Office of Science, Basic Energy Sciences, Division of Materials Science of the U ...
Kim, F   +4 more
openaire   +3 more sources

Hybrid drug nanocrystals

Advanced Drug Delivery Reviews, 2019
Nanocrystals show promise to deliver poorly water-soluble drugs to yield systemic exposure. However, our knowledge regarding the in vivo fate of nanocrystals is in its infancy, as nanocrystallization is simply viewed as an approach to enhance the dissolution of drug crystals.
Yi, Lu, Yongjiu, Lv, Tonglei, Li
openaire   +2 more sources

Nanocrystals for Electronics

Annual Review of Chemical and Biomolecular Engineering, 2012
Semiconductor nanocrystals are promising materials for low-cost large-area electronic device fabrication. They can be synthesized with a wide variety of chemical compositions and size-tunable optical and electronic properties as well as dispersed in solvents for room-temperature deposition using various types of printing processes.
Matthew G, Panthani, Brian A, Korgel
openaire   +2 more sources

Nanocrystal-Powered Nanomotor

Nano Letters, 2005
We have constructed and operated a nanoscale linear motor powered by a single metal nanocrystal ram sandwiched between mechanical lever arms. Low-level electrical voltages applied to the carbon nanotube lever arms cause the nanocrystal to grow or shrink in a controlled manner.
B C, Regan   +4 more
openaire   +2 more sources

Doping semiconductor nanocrystals

Nature, 2005
Doping--the intentional introduction of impurities into a material--is fundamental to controlling the properties of bulk semiconductors. This has stimulated similar efforts to dope semiconductor nanocrystals. Despite some successes, many of these efforts have failed, for reasons that remain unclear. For example, Mn can be incorporated into nanocrystals
Steven C, Erwin   +5 more
openaire   +2 more sources

Nanocrystal Diffusion Doping

Journal of the American Chemical Society, 2013
A diffusion-based synthesis of doped colloidal semiconductor nanocrystals is demonstrated. This approach involves thermodynamically controlled addition of both impurity cations and host anions to preformed seed nanocrystals under equilibrium conditions, rather than kinetically controlled doping during growth. This chemistry allows thermodynamic crystal
Vladimir A, Vlaskin   +3 more
openaire   +2 more sources

Colloidal Nanocrystal Frameworks

Advanced Materials, 2015
Colloidal nanocrystal frameworks (CNFs) are a modular class of mesostructured porous materials, which are assembled from pre‐formed nanocrystal building units using suitably designed block copolymer architecture‐directing agents. The functional attributes of these frameworks are determined both by the physiochemical characteristics of the nanocrystal ...
Brett A, Helms   +3 more
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Diffraction by nanocrystals

Journal of the Optical Society of America A, 2013
X-ray femtosecond nanocrystallography is a new, potentially powerful technique for imaging biological macromolecules that uses ensemble-averaged measurements of diffraction of x-ray free-electron laser pulses from nanocrytalline specimens. Nanocrystals have some diffraction characteristics that are distinct from those of macroscopic crystals, due to ...
Joe P J, Chen, Rick P, Millane
openaire   +2 more sources

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