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Controllable Synthesis of Cu2S Nanocrystals and Their Assembly into a Superlattice

S nanocrystals with controllable sizes and shapes (circular and elongated) have been synthesized through a novel water−oil interface confined reaction. They can self-assemble into highly ordered multilayer superlattices. By controlling the size and shape of building block nanocrystals, the packing symmetry of the superlattice can be engineered. For circular nanocrystals, both fcc and hcp multilayer superlattices are found in the sample. For elongated nanocrystals, they can also generate a close-packed layer and further stack into a multilayer superlattice. The dipole moment of the inner nanocrystals is useful for their stacking. This work provides a simple bottom-up approach to integrate nanocrystals, as well as to adjust the packing symmetry of the final superlattice, which may have potential applications for nanomaterials and nanodevi

Au'PbS Core'Shell Nanocrystals: Plasmonic Absorption Enhancement and Electrical Doping via Intra-particle Charge Transfer

Au−PbS Core−Shell Nanocrystals: Plasmonic Absorption Enhancement and Electrical Doping via Intra-particle Charge Transfer

One-pot Synthesis of Highly Luminescent InP/ZnS Nanocrystals without Precursor Injection

InP/ZnS core/shell nanocrystals are prepared using a single-step heating-up method relying on the difference in reactivity of the applied InP and ZnS precursors. The obtained particles exhibit size-dependent emission in the range of 480−590 nm, a fluorescence quantum yield of 50−70%, and high photostability.

Active gold nanocrystals observed with scanning transmission electron microscopy

New catalysis method will prompt researchers to create materials from new kinds of chemical reactions

Nonhydrolytic Synthesis of High-Quality Anisotropically Shaped Brookite TiO2 Nanocrystals

Scuola Superiore ISUFI, University of Salento, Distretto Tecnologico, via per Arnesano km 5, 73100 Lecce, Italy, National Nanotechnology Laboratory of CNR-INFM, Unita

Synthesis and Shape-Tailoring of Copper Sulfide/Indium Sulfide-Based Nanocrystals

Broadband Service Provider Trident SR Sdn. Bhd.

Researchers Identify Tiny Gold Clusters as Top-Notch Catalysts

Using a pair of microscopy instruments, researchers for the first time achieved state-of-the-art resolution of active gold nanocrystals absorbed onto iron oxide surfaces. The knowledge from this research could potentially improve the effectiveness of catalytic converters that clean automobile exhaust and breathing devices that protect miners and firefighters.

Evident Technologies Licenses Nanocrystal Patents from Philips Electronics

Evident Technologies, Inc. and Philips Electronics signed a non-exclusive licensing agreement paving the way for commercialization of nanocrystal-based LEDs. Evident Technologies intends to immediately launch a new line of low-power LED and LED based products that use semiconductor nanocrystals as a phosphor.

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