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An analysis of solar energy conversion systems based on photon and thermal processes

Fieducik J., Godlewski J.

Geology, Geophysics and Environment

2016

Vol. 42, no. 4

403--409

Solar spectral irradiance covers a fairly broad wavelength range. Solar radiation is part of the electromagnetic spectrum which is described by the concept of wave-particle duality. The corpuscular theory of electromagnetic radiation states that energy is transmitted by photons. Photons carry specific amounts of energy which can be used to convert solar energy into other types of energy, in particular electricity. The internal photoelectric effect is important for the conversion of solar energy to electricity because the efficiency of the external photoelectric effect is too low. Every quantum of solar energy also carries a certain amount of energy which can be converted into heat energy. The objective of the paper is to analyze and compare the efficiency of solar energy conversion in photon and thermal processes, to review the technological advances made in this field, and to indicate potential directions for the development of systems converting solar energy to electricity.

Application of quasiparticles theory and Fourier analysis in photoelectric effect

Chrzanowski J.

Optica Applicata

2003

Vol. 33, nr 2-3

457-468

The interaction of electromagnetic waves with metal surface is analyzed in terms of electron waves and quasiparticles theory. Then a general relation between frequency and wavelength for excitations in condensed systems is obtained. It is shown how the work function for any metal depends on electron density and Fourier transform of potential due to a single electron. The effect of different factors on change of the work function value is considered