Photon-charge effect in conductors

Spectral Dependencies of the Surface Photo-Charge Effect at Conducting Surfaces

“…The output signal is taken from a wire pressed against the irradiated sample. The high-impedance amplifier (4) matches the high-output impedance of the structure [2]. For metals, where the signals are weak one needs to use a selective or phase-sensitive nanovoltmeter (5) synchronised with the chopper (2).…”

“…The diameter of the illuminated area is 10 mm. For the metals under investigation, interferometric filters, rather than a monochromator (1) 1, were used. The incident light intensity is 2 mV.…”

Quality Control Methods Based on Electromagnetic Field-Matter Interactions

“…10. The dependence of the SPCE voltage on the surface properties was also studied in a Si plate, implanted with boron ions [Pustovoit et al, 1989a]. The dependence, shown in Fig.…”

“…The potential electric difference between the irradiated sample and the common ground of the system is measured experimentally. The SPCE is a very fast effect: for example, an irradiation with 20 ns laser pulse results in a signal response which reproduces precisely the waveform of the incident pulse [Pustovoit et al, 1989a]. The rapidity of SPCE is of great importance for many practical applications.…”

Automatized System for Measuring the Surface Density of Current Carriers and Electrical Permittivity of Conducting Materials

“…We had in mind that the acoustoelectron interactions in general and especially TAV offer great capabilities in the investigation of semiconductors [3]. However our latter investigations on TAV resulted in the observation of another effect, as we reckon -closely related with TAV, the so-called surface photo-charge effect [4,5].…”