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Angang Dong

Staff Scientist, Inorganic Nanostructures Facility

ADong@lbl.gov
510.486.5526

P. James Schuck

Research Interests

My research focuses on the synthesis and surface chemistry of inorganic colloidal nanostructures (nanoparticles, nanorods, nanowires, and heterostructures, etc). I am also interested in the development of novel self-assembly strategies, integrating the self-assembled nanocrystal architectures to build devices for electronic, optoelectronic, and thermoelectric applications.



Current Internal Projects

  • Synthesis and surface chemistry of colloidal nanocrystals
    My research aims to synthesize a series of inorganic nanocrystals monodisperse in size, shape and composition, the availability of which not only enables the investigation of the size- and shape-dependent properties of nanocrystals, but also allows the fabrication of nanocrystal-based devices. Because of the high surface-to-volume ratio inherent to nanoscale materials, many physical and chemical properties of nanocrystals are strongly affected by their surface properties. I am interested in the development of new surface-modification strategies to functionalize nanocrystals and nanocrystal assemblies, with the goal to design functional materials from nanocrystals by introducing potentially interesting capping and linking molecules.
    • Colloidal Nanocrystals
  • Self-Assembly of Large-Area Nanocrystal Superlattices
    • Binary Nanocrystal Superlattice Membranes Self-Assembled at the Liquid Interface
      The ability to assemble nanocrystals into periodically ordered structures on multiple length scales and over large areas is critical to the manufacture of nanocrystals-based devices. In particular, co-assembly of two types of nanocrystals into binary nanocrystal superlattices (BNSLs) provides a low-cost way to design mutilfunctional materials with precisely controlled properties. We have recently developed a new and general approach based on the co-crystallization of multicomponent nanocrystals on a liquid surface to grow large-area (cm2 scale) and transferable BNSL membranes. The ability to transfer BNSLs also allows the construction of free-standing membranes and other complex architectures that have not been accessible previously.h no measurable anti-Stokes background autofluorescence. These findings suggest that UCNPs are ideally suited for single-molecule imaging experiments.  Learn more
      - Angang Dong, Jun Chen, Patrick M. Vora, James M. Kikkawa and Christopher B. Murray

  • Self-assembled nanocrystal architectures for device applications
    Studies of the self-assembly of nanocrystals are not only of fundamental scientific interest but also of technological importance. Our recent work on the self-assembly of single- and multiple component nanocrystals enables integration of large-scale nanocrystal superlattices on any substrate for device fabrication. My work aims to employ these self-assembled nanocrystal architectures to build functional devices.

Selected Publications

Education

2007-2010 Postdoc, University of Pennsylvania, with Prof. Christopher B. Murray

2007 Ph.D., Inorganic chemistry, Washington University in St. Louis, with Prof. William E. Buhro

2003 M.S., Physical chemistry, Fudan University, with Prof. Yi Tang

2000 B.S., Chemistry, Fudan University