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Detection of weak cathodoluminescence
Horák, Petr ; Schauer, Petr
The major problem of the cathodoluminescent study of poly[methyl(phenyl)silylene] (PMPSi) is the susceptibility of the material investigated to the degradation. The process of degradation causes strong decrease of the CL intensity. Measurement in the synchronous mode can recover signals in the presence of an overwhelming noise and background and can provide high resolution measurement over several orders of magnitude.
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Metastability of poly[methyl(phenyl)silylene]
Horák, Petr
Metastability of the poly[methyl(phenyl)silylene] (PMPhSi) specimen was studied using the cathodoluminescent (CL) method. The process of the CL emission recovery, depending on the irradiation time as well as on the current density of the excitation beam, was observed. The process of the CL recovery is the strongest at the smallest current densities. Knowledge of the time dependence of the PMPhSi degradation will be used for the CL spectra measurement.
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