Origin of the monochromatic photoemission peak in diamondoid monolayers.

Clay, William A; Liu, Zhi; Yang, Wanli; Fabbri, Jason D; Dahl, Jeremy E; Carlson, Robert M K; Sun, Yun; Schreiner, Peter R et al. · Nano Lett · 2009

basic_science · Level V

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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.

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