Optical properties, photonics

Space charge limited currents in $\beta$-ZnP$_2$ layers with hole conductivity

A. V. Voronov, I. G. Stamov

Transnistrian State University, Tiraspol, Moldova

Abstract: We have studied space charge limited currents (SCLC) in thin $\beta$-ZnP$_2$ layers under visible light illumination. When the cathode is illuminated, the electric field strength drops down to zero values. However without illumination the electric fields strength at crystal boundary is sufficient to form microplasmas and to destruct the crystal. Our simulations agree with experiments when in addition to the standard theory of SLCS we also add recombination processes with deep donor level.

Keywords: space charge limited Currents (SCLC), $\beta$-ZnP$_2$ (monoclinic zinc diphosphide), microplasmas, trap filling limit (UTFL), photoexcitation, stark effect.

Received: 07.06.2024
Revised: 25.06.2024
Accepted: 25.06.2024

DOI: 10.61011/PSS.2024.08.59067.153