Expanding the horizons of the thermodynamic landscape and optoelectronic properties of soft 2D hybrid perovskites MHy₂PbX₄

Abstract

Comprehensive investigations revealed a pressure–temperature phase diagram for 2D hybrid perovskite MHy 2 PbI 4 , demonstrating its high structural elasticity and ability to generate polar phases mimicking its ferroelectric analogue MHy 2 PbBr 4 .