"Origin of the Monochromatic Photoemission Peak in Diamondoid Monolayers"

William A. Clay: Zhi Liu, Wanli Yang, Jason D. Fabbri, Jeremy E. Dahl, Robert M. K. Carlson, Yun Sun, Peter R. Schreiner, Andrey A. Fokin, Boryslav A. Tkachenko, Nataliya A. Fokina, Piero A. Pianetta, Nicholas Melosh and Zhi-Xun Shen; Nano Lett., 09/15/09.

Additional Authors: Zhi Liu, Wanli Yang, Jason D. Fabbri, Jeremy E. Dahl, Robert M. K. Carlson, Yun Sun, Peter R. Schreiner, Andrey A. Fokin, Boryslav A. Tkachenko, Nataliya A. Fokina, Piero A. Pianetta, Nicholas Melosh and Zhi-Xun Shen

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.