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 Have

关键词: CRYSTAL STRUCTURE;    ELECTRIC FIELDS;    GLASS;    GOLD;    LASERS;    MANUFACTURING;    MICROSPHERES;    THERMODYNAMIC PROPERTIES Self-assembly.;    Material Science and Metallurgy-Nanomaterials;    Nanomaterials;   

DOI  :  10.2172/974889
RP-ID  :  SAND2009-6163
PID  :  OSTI ID: 974889
Others  :  TRN: US201008%%573

学科分类：材料科学（综合）

美国|英语

来源: SciTech Connect

【 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.