Engineering Commons^™

Nucleation And Growth Of Molecular Crystals On Molecular Interfaces Role Of Chemical Functionality And Topography, Phillip W. Carter, Lynn M. Frostman, Andrew C. Hillier, Michael D. Ward

Andrew C. Hillier

Fire Information Resources In The Usda Forest Service, Julie Blankenburg

Julie Blankenburg

Various branches of the Forest Service generate fire information, but no single location provides all publications related to this area. This report describes the kinds of fire research conducted by the Forest Service and access to research publications through the FS INFO database. Distribution centers for research stations, the Washington Office, the Forest Products Laboratory, and the Northeastern Area are also listed.

Nanoscale Surface Topography And Growth Of Molecular Crystals: The Role Of Anisotropic Intermolecular Bonding, Phillip W. Carter, Andrew C. Hillier, Michael D. Ward

Andrew C. Hillier

Atomic force microscopy (AFM) and phase measurement interferometric microscopy (PMIM) of the molecular crystals a-glycine and (TMTSF)2C104 (TMTSF = tetramethyltetraselenafulvalene) reveal that crystal topography, growth, and etching reflect the relative strengths of solid state intermolecular bonding. The (OlO), (110), and (01 1) faces of a-glycine exhibit terraces, ledges, and kinks that can be interpreted on the basis of intermolecular hydrogen bonding in these planes. A strong preference for [ 1001 ledges on the (001) face of (TMTSF)zC104 is a consequence of strong intermolecular charge transfer interactions between TMTSF molecules stacked along this direction. Dynamic in situ measurements of growth and …

Electrocrystallization Of An Ordered Organic Monolayer: Selective Epitaxial Growth Of B-(Et)213 On Graphite, Andrew C. Hillier, Jeffrey B. Maxson, Michael D. Ward

Andrew C. Hillier

The fabrication of highly ordered organic thin films has received considerable attention in attempts to develop materials for molecular-based electronic devices, sensors, displays, and logic e1ements.l Examples of twodimensional films with potentially desirable electronic properties include self-assembled mono- and multilayers with redox-active components2 and thin films of organic dyes grown by molecular beam epitaxy on van der Waals substrates such as graphite, MoS2, and SnSza3 Successful approaches to the manufacturing of devices based on organic thin films will ultimately rely on the development of convenient fabrication methods as well as rigorous control of the supramolecular structure of the thin-film assembly.