CrPS₄ Nanoflakes as Stable Direct-Band-Gap 2D Materials for Ultrafast Pulse Laser Applications.

ABSTRACT: Two-dimensional (2D) materials have attracted considerable attention due to their potential for generating ultrafast pulsed lasers. Unfortunately, the poor stability of most layered 2D materials under air exposure leads to increased fabrication costs; this has limited their development for practical applications. In this paper, we describe the successful preparation of a novel, air-stable, and broadband saturable absorber (SA), the metal thiophosphate CrPS₄, using a simple and cost-effective liquid exfoliation method. The van der Waals crystal structure of CrPS₄ consists of chains of CrS₆ units interconnected by phosphorus. In this study, we calculated the electronic band structures of CrPS₄, revealing a direct band gap. The nonlinear saturable a

SUBMITTER: Zhang W 

PROVIDER: S-EPMC10052116 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature