Spin-Dependent Chemical Processes on and near the Surface of Semiconductors Induced by Sunlight

A new concept of photochemical processes on the surface of semiconductors is proposed, taking into account spin effects. It is shown that spin photochemistry unites nonlinear phenomena of the combined effect of photons on atomic processes the course of which depends on the spin symmetry. These pheno...

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Bibliographic Details
Published in:Applied solar energy 2021, Vol.57 (2), p.107-112
Main Authors: Ashurov, Kh. B., Kutlimurotov, B. R., Nikiforova, N. N., Oksengendler, B. L.
Format: Article
Language:English
Subjects:
Chemical reactions
Direct Conversion of Solar Energy into Electrical Energy
Electrical Machines and Networks
Engineering
Hydrogen atoms
Nonlinear phenomena
Photochemicals
Photochemistry
Photons
Power Electronics
Semiconductors
Solar energy
Spin exchange
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Summary:A new concept of photochemical processes on the surface of semiconductors is proposed, taking into account spin effects. It is shown that spin photochemistry unites nonlinear phenomena of the combined effect of photons on atomic processes the course of which depends on the spin symmetry. These phenomena are illustrated by models of the bombardment of a silicon surface (both flat and fractal) by hydrogen atoms, taking into account the flip-flop spin exchange modified by absorbed photons. The classification of possible models of spin photochemistry for this system is carried out.
ISSN:0003-701X
1934-9424
DOI:10.3103/S0003701X2102002X