Work

INFLUENCE OF ALPHA PARTICLE IRRADIATION ON DYNAMIC MECHANICAL PROPERTIES OF p-SiGe SUBSTRATES

Year: 2023

Type: article

Abstract: Influence of alpha particle irradiation on electrophysical and dynamic mechanical properties of p-SiGe substrates with (111) orientation has been studied. Experimental results show, that changes in electrical resistance and concentration of current-carriers holes are more revelaed in p-Si+2%Ge:B substrates with high Ge content. In the alpha-irradiated test samples increase of the values of torsional oscillations strain amplitude and elastic limit by 1.5-1.8 times and 15 % increase of absolute value of shear modulus are observed. It is supposed, that the radiation point defects induced by alpha particle irradiation in the p-SiGe crystalline lattice form additional braking centers for dislocation motion and cause the radiation origin dynamic mechanical strengthening. The strengthening effect is more revealed in p-Si+2%Ge:B alloy.

Source: GEORGIAN SCIENTISTS

DOI: 10.52340/gs.2023.05.02.08

Authors: Ia Kurashvili, Kakhaber Shamatava, Ekaterine Sanaia, Giorgi Chubinidze, Giorgi Darsavelidze

Institution: LEPL Ilia Vekua Sukhumi Institute of Physics and Technology

Language: English

Topic: Semiconductor materials and interfaces

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4367307490

FWCI: 0.06

Cites:

Cited by: 1

Related to: 10