Origin of the monochromatic photoemission peak in diamondoid monolayers.
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.
Clay
William A
WA
Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA.
Liu
Zhi
Z
Yang
Wanli
W
Fabbri
Jason D
JD
Dahl
Jeremy E
JE
Carlson
Robert M K
RM
Sun
Yun
Y
Schreiner
Peter R
PR
Fokin
Andrey A
AA
Tkachenko
Boryslav A
BA
Fokina
Nataliya A
NA
Pianetta
Piero A
PA
Melosh
Nicholas
N
Shen
Zhi-Xun
ZX
D000465:Algorithms; D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D018130:Diamond / Q000737:chemistry*; D008027:Light; D008029:Lighting / Q000379:methods*; D008163:Luminescent Measurements / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008956:Models, Chemical; D008968:Molecular Conformation; D009010:Monte Carlo Method; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D010316:Particle Size; D012542:Scattering, Radiation; D013499:Surface Properties
D046911:Macromolecular Substances; D018130:Diamond