Impact of rectifier metal-semiconductor contact geometry on electrical properties of Schottky diodes with Mg3N2 interfacial layer

Sevgili Ö., Orak İ.

Journal of Physics Condensed Matter, vol.36, no.2, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 2
  • Publication Date: 2024
  • Doi Number: 10.1088/1361-648x/acf3c5
  • Journal Name: Journal of Physics Condensed Matter
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, MEDLINE, Metadex, DIALNET, Civil Engineering Abstracts
  • Keywords: diode design, diode optimization, leakage current, Mg3N2
  • Kütahya Health Sciences University Affiliated: Yes

Abstract

The Ag/Mg3N2/p-Si heterojunction diode (HD) with rectifier contacts (RCs) with the same area in various geometries were fabricated through thermal evaporation, and the electrical performances of these diodes was compared. The geometry of the RC was found to affect various electrical properties such as ideality factor, saturation current and barrier height of HD, the rectifier rate, and the leakage current of the diodes. The experimental demonstrated the HD with a circular RC exhibited a higher rectifying ratio and lower leakage current compared to the other RCs. Hence, the design and optimization of the RC play a critical role in achieving the desired electrical properties of diode. These diodes, featuring an Mg3N2 interfacial layer and showcasing photoconductive behavior, can be utilized as photodiodes in various optoelectronic devices.