Solid State Defect Emitters With no Electrical Activity.

ABSTRACT: Point defects may introduce defect levels into the fundamental bandgap of the host semiconductors that alter the electrical properties of the material. As a consequence, the in-gap defect levels and states automatically lower the threshold energy of optical excitation associated with the optical gap of the host semiconductor. It is, therefore, a common assumption that solid-state defect emitters in semiconductors ultimately alter the conductivity of the host. This study demonstrate, on a particular defect in 4H silicon carbide, that an unrecognized class of point defects exists that are optically active but electrically inactive in the ground state.

SUBMITTER: Li P 

PROVIDER: S-EPMC12376652 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature