Spontaneous ordering of bimodal ensembles of nanoscopic gold clusters
Article Abstract:
There have been developments in the preparation of ordered metal and semiconductor nanocrystal ensembles over the past few years, such as the crystallization of monodisperse fractions of thiol-stabilized nanoparticles into two and three dimensional superlattices. Three types of organization were observed in alkanethiol-derivatized gold nanocrystals, size-segregated areas, structures where different sized particles are located in random positions in a pseudohexagonal lattice and intimately mixed different sized particles.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Hard elastic carbon thin films from linking of carbon nanoparticles
Article Abstract:
Hard elastic thin films of pure carbon can be manufactured using nanotechnology. The process involves the high velocity deposition of closed, hollow graphitic carbon nanoparticles such as nanotubes and carbon onions onto a substrate. The process causes sp3-like bonds to bind together the sp2-bonded graphitic planes. During the bonding process, a substantial electron-energy-loss occurs in the sp2 bonding located in the intersecting regions of the nanoparticles.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Ultra-low-threshold field emission from conjugated polymers
Article Abstract:
Field-emission displays contain electron emitting materials, and such devices currently use arrays of microfabricated tips as the emitting cathodes. However a thin-film cathode is potentially cheaper and simpler alternative. It requires materials that can emit sufficient electron current at low applied fields. Some conducting polymers have low electron affinity, wide bandgap and good transport properties, and are demonstrated to provide good cathode materials.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Odour encoding by temporal sequences of firing in oscillating neural assemblies. Hebbian STDP in mushroom bodies facilitates the synchronous flow of olfactory information in locusts
- Abstracts: Interannual extremes in the rate of rise of atmospheric carbon dioxide since 1980. Increased activity of northern vegetation inferred from atmospheric CO2 measurements
- Abstracts: Seeing biological motion. Compression of visual space before saccades. Two stages of visual processing for radial and circular motion
- Abstracts: Visual cortical mechanisms detecting focal orientation discontinuities. Breathing life into biology
- Abstracts: Synaptic code for sensory modalities revealed by C. elegans GLR-1 glutamate receptor. Molecular basis of mechanosensory transduction