Semiconductors

Electroreflection of light and the Franz–Keldysh effect in monoclinic zinc diphosphide crystals

I. G. Stamov

Taras Shevchenko Transnistria State University, Tiraspol

Abstract: The results of the study of electroreflectance and the Franz–Keldysh effect in zinc diphosphide monoclinic crystals are presented. The obtained spectra are compared with theoretical positions in the approximations of strong and weak electric fields. The dependences of electro-optical constants on electric field strength and temperature have been obtained. The energies of optical transitions in the energy range from the fundamental absorption edge to 4 eV have been determined.

Keywords: differential spectroscopy, electroreflection, Franz–Keldysh effect, semiconductor materials, $\beta$-ZnP$_2$ (monoclinic zinc diphosphide).

Received: 07.02.2025
Revised: 09.03.2025
Accepted: 12.03.2025

DOI: 10.61011/FTT.2025.03.60257.27-25

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