Origin of the monochromatic photoemission peak in diamondoid monolayers

Nano Lett. 2009 Jan;9(1):57-61. doi: 10.1021/nl802310k.

Abstract

Recent photoemission experiments have discovered a highly monochromatized secondary electron peak emitted from diamondoid self-assembled monolayers on metal substrates. New experimental data and simulation results are presented to show that a combination of negative electron affinity and strong electron-phonon scattering is responsible for this behavior. The simulation results are generated using a simple Monte Carlo transport algorithm. The simulated spectra recreate the main spectral features of the measured ones.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms
  • Computer Simulation
  • Crystallization / methods*
  • Diamond / chemistry*
  • Light
  • Lighting / methods*
  • Luminescent Measurements / methods*
  • Macromolecular Substances / chemistry
  • Materials Testing
  • Models, Chemical*
  • Molecular Conformation
  • Monte Carlo Method
  • Nanostructures / chemistry*
  • Nanostructures / ultrastructure*
  • Nanotechnology / methods
  • Particle Size
  • Scattering, Radiation
  • Surface Properties

Substances

  • Macromolecular Substances
  • Diamond