Molecular Architectural Approach to Novel Electro-Optical Materials Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Title

  • Main Title Molecular Architectural Approach to Novel Electro-Optical Materials

Creator

  • Author: Li, D.
    Creator Type: Personal
  • Author: Johal, M.S.
    Creator Type: Personal
  • Author: Smilowitz, L.B.
    Creator Type: Personal
  • Author: Robinson, J.M.
    Creator Type: Personal

Contributor

  • Sponsor: M&amp
    Contributor Type: Organization
  • Sponsor: A (United States)
    Contributor Type: Organization

Publisher

  • Name: Los Alamos National Laboratory
    Place of Publication: New Mexico
    Additional Info: Los Alamos National Lab., NM (United States)

Date

  • Creation: 1999-06-29

Language

  • English

Description

  • Content Description: This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). The goal is to construct polar multilayers with nonlinear optical coefficients larger than classical inorganic crystals such as KDP or quartz. The strategy is to use various chemical interactions such as covalent bonds or hydrogen bonding to build polar structures. We have synthesized novel barbituric acid and melamine derivatives that will spontaneously self-assemble into a supramolecular ribbon according to their complementary H-bond motif. This supramolecular ribbon can then stack into a polar multilayer structure as verified by sum frequency generation (w{sub 1}+w{sub 2}) or second harmonic generation (when w{sub 1}=w{sub 2}). Second harmonic generation yields a value of d{sub 33}=3.2 pm/V for the self-assembled films and sum frequency generation shows a net polar orientation of the methyl groups in the multilayer along the surface normal. X-ray diffraction confirms the layered structure and produces the periodicity of {approximately}41 A, which corresponds well to the width of the supramolecular ribbons ({approximately}40 A).
  • Physical Description: 14 p.

Subject

  • Keyword: Harmonic Generation
  • Keyword: Orientation
  • Keyword: Melamine
  • Keyword: X-Ray Diffraction
  • STI Subject Categories: 08 Hydrogen
  • Keyword: Variations
  • STI Subject Categories: 36 Materials Science
  • Keyword: Barbiturates
  • Keyword: Quartz
  • Keyword: Hydrogen
  • Keyword: Bonding
  • Keyword: Lanl

Source

  • Other Information: PBD: 29 Jun 1999

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: LA-UR-99-2683
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/763892
  • Office of Scientific & Technical Information Report Number: 763892
  • Archival Resource Key: ark:/67531/metadc723360

Note

  • Display Note: OSTI as DE00763892
  • Display Note: Medium: P; Size: 14 pages