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Schematic diagram of Au/diamondoid/CsBr photoemission device and measurement setup. Expanded view on left shows internal structure of the film consisting of a monolayer of tetramantane-6-thiol (hydrogens not shown for clarity) and a thin film of CsBr. On right, the geometry of the measurement is shown with the laser passing through a wire mesh and hitting the sample to excite photoelectrons that are captured on the mesh.
I/V curves for several samples showing the curve fitting results. The top panel shows a Au/CsBr sample with no diamondoid, while the bottom shows a Au/diamondoid/CsBr sample. The thick dotted line shows the error function fit to the data. Also shown is the dI/dV data with the Gaussian function corresponding to the fit (thin dotted line).
FWHM as a function of thickness for Au/diamondoid/CsBr samples. FWHM calculated from fit. Also shown are an exponential fit to the data (dotted line) and the FWHM for Au/CsBr samples (horizontal line).
Relative photoyield for Au/diamondoid (green crosses) and Au/diamondoid/CsBr (red circles) with linear fits.
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