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Photocathode device using diamondoid and cesium bromide films
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View: Figures


Image of FIG. 1.
FIG. 1.

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 [121]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.

Image of FIG. 2.
FIG. 2.

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).

Image of FIG. 3.
FIG. 3.

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).

Image of FIG. 4.
FIG. 4.

Relative photoyield for Au/diamondoid (green crosses) and Au/diamondoid/CsBr (red circles) with linear fits.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photocathode device using diamondoid and cesium bromide films