Atomic & Molecular Clusters from READE

atomic clusters, molecular clusters, metal clusters, diamond nanoclusters, atomic clusters, molecular clusters, metal clusters, diamond nanoclusters, atomic clusters, molecular clusters, atomic clusters, molecular clusters, metal clusters, diamond nanoclusters, atomic clusters, molecular clusters, metal clusters, diamond nanoclusters, atomic clusters, molecular clusters

Reade Advanced Materials offers:

Atomic & Molecular Clusters

Cluster Research

A major thrust in the development of high-tech materials can be described as atomic-scale engineering. In this process, materials are assembled on an almost atom by atom basis in order to obtain useful properties not found in naturally-occurring substances. Applications of this new technology can be found in many industries, but nowhere are they more vigorously sought than in the electronics industry, where making devices like transistors smaller and more efficient quickly translates into new and improved consumer products- and significant new profits for manufacturers.

Cluster Assembled Materials

There is currently a strong interest in the prospect of producing new materials consisting of small atomic clusters. Such cluster-assembled materials may vary significantly from their crystalline counterparts. Mechanical, electronic, optical and
other properties are expected to be different for such assemblies which should make them good potential candidates as new building materials for electronic devices. Also, the quantum effects which occur in such materials of finite size and dimension, lead to their special properties.

Atomic Cluster Derived Materials

Advances in techniques for the synthesis of cluster-engineered materials containing controlled nanostructures provide the capability of preparing new classes of materials with enhanced optical, magnetic, chemical sensor and photocatalytic properties. We propose here an integrated research effort based on three independent but mutually supportive preparative technologies to develop and characterize materials constructed from nanoparticle assemblies. These technologies include: laser ablation/molecular
beam methods for preparing atomic clusters (2-1000 atoms) which can be deposited on nanoscale templates, nanosphere lift-off lithography for preparing periodic arrays of particles in two or three dimensions with feature sizes down to the ten nanometer range, and molecular self-assembly methodology for making functionalized materials that combine biological macromolecules (particularly DNA) with metal nanoparticles. Four types of materials will be prepared: (1) chemical sensors that combine the
organism-specific binding capabilities of DNA together with aggregation-specific optical properties of metal nanoparticles, (2) new classes of photocatalysts and of photoluminescent devices engineered from atomic clusters of Ti and Si, (3) materials targeted for efficient frequency conversion of low-power, semiconductor diode lasers through the use of three dimensional arrays of metal and nonlinear optical
nanoparticles, and (4) ultrahigh density magnetic storage materials built from arrays of single magnetic domain nanoparticles. Supporting this work will be an integrated theoretical modeling program that emphasizes continuum electrodynamics calculations on the nanoparticle assemblies, and electronic structure characterization of size-dependent cluster structure, nonlinear optical properties and molecular
conductance. Spectroscopic characterization of the materials will be provided by scanning microscopies, surface enhanced linear and nonlinear spectroscopies, near-field optics and x-ray characterization.

Chemical Properties Available:

Diamond nanoclusters

Metal clusters

Physical Properties Available:

...............

Physical Constants:

Typical Applications:

Semiconductors

TSCA (SARA Title III) Status:

Unknown. For further information please call the E.P.A. at 1.202.554.1404

Safety Notice:

Before using, user shall determine the suitability of the product for its intended use, and user assumes all risk and liability whatsoever in connection therewith.

Links:

Nanotechnology Magazine

The Nanotube Site

International/Informal Cluster Workshops

East Coast USA: 1-401-433-7000 / West Coast USA: 1-775-352-1000 / Latin America: 507-314-1282

___________