Successive high-temperature phase transitions triggered dielectric switching in a one-dimensional hybrid perovskite with blue emission

Abstract

Organic-inorganic hybrid perovskite materials have garnered considerable interest for their potential in optoelectronic applications. Herein, we assemble a novel one-dimensional organic-inorganic hybrid perovskite from the organic cation with trans-configuration, (trans-4-methylcyclohexylammonium)CdCl3...

Second-Order Nonlinear Switching and Photoluminescence Properties of Cd-Based Hybrid Perovskite with High-Temperature Phase Transition

“…Responsive switching materials are indispensable in modern technology due to their capability to rapidly and reversibly alter their physical, chemical, or biological properties when exposed to external factors like temperature, light, pressure, or electromagnetic fields. − These unique attributes render them highly promising for various applications, including sensors, actuators, energy conversion and storage, and biomedicine. , Nonlinear optical (NLO) switching materials, in particular, have attracted considerable attention in current research, owing to their substantial potential in optical communication, laser technology, and optoelectronic displays. − Second-harmonic generation (SHG) is a fundamental NLO process that involves the interaction of two photons with a nonlinear material to produce a new photon with twice the energy and thus twice the frequency of the original photons. This process is highly sensitive to the symmetry properties of the material, typically requiring noncentrosymmetric structures apart from those crystallizing in the D 4 (422), D 6 (622), and O (432) point groups. − The ability to modulate the NLO effect by adjusting the composition and structure of the material enables precise control over the optical signal, facilitating the on–off switching mechanism.…”