Nano-engineering by optically directed self-assembly.

Furst, Eric (University of Delaware, Newark, DE) ; Dunn, Elissa (Yale University, New Haven, CT) ; Park, Jin-Gyu (Yale University, New Haven, CT) ; Brinker, C. Jeffrey ; Sainis, Sunil (Yale University, New Haven, CT) ; Merrill, Jason (Yale University, New Haven, CT) ; Dufresne, Eric (Yale University, New Haven, CT) ; Reichert, Matthew D. ; Brotherton, Christopher M. ; Bogart, Katherine Huderle Andersen ; Molecke, Ryan A. ; Koehler, Timothy P. ; Bell, Nelson Simmons ; Grillet, Anne Mary ; Gorby, Allen D. ; Singh, John (University of Delaware, Newark, DE) ; Lele, Pushkar (University of Delaware, Newark, DE) ; Mittal, Manish (University of Delaware, Newark, DE)

Sandia National Laboratories

关键词: Crystal Structure;    Self-Assembly.;    Gold;    Thermodynamic Properties Self-Assembly.;    36 Materials Science;   

DOI  :  10.2172/974889
RP-ID  :  SAND2009-6163
RP-ID  :  AC04-94AL85000
RP-ID  :  974889

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来源: UNT Digital Library

【 摘 要 】

Lack of robust manufacturing capabilities have limited our ability to make tailored materials with useful optical and thermal properties. For example, traditional methods such as spontaneous self-assembly of spheres cannot generate the complex structures required to produce a full bandgap photonic crystals. The goal of this work was to develop and demonstrate novel methods of directed self-assembly of nanomaterials using optical and electric fields. To achieve this aim, our work employed laser tweezers, a technology that enables non-invasive optical manipulation of particles, from glass microspheres to gold nanoparticles. Laser tweezers were used to create ordered materials with either complex crystal structures or using aspherical building blocks.