Theoretical insights into the amplified optical gain of hexagonal germanium by strain engineering.

ABSTRACT: Strain engineering is a versatile technique used to tune the electronic and optical attributes of a semiconductor. A proper degree of strain can induce the optimum amount of gain necessary for light-emitting applications. Particularly, photonic integrated chips require an efficient light-emitting material that can be easily assimilated into complementary metal-oxide semiconductor (CMOS) technology. Germanium falls in the same group of the periodic table as silicon, and thus, it completely complies with Si technology. Hence, we investigated extensively the electronic and optical properties of hexagonal germanium for both compressive and tensile strains using density functional theory. The electronic bandstructure, dielectric function, absorption, and reflectivity were calculated by employin

SUBMITTER: Mayengbam R 

PROVIDER: S-EPMC10088490 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature