Multi‐Stimuli Responsive Luminescence and Domino Phase Transition of Hybrid Copper Halides with Nonlinear Optical Switching Behavior

Authors:
Publisher website
Google Scholar
Abstract
Although phase transition materials (PTMs) under external stimuli are of great research interest duo to their rich potential applications, it is still challenging to explore multi‐responsive PTMs. Herein, two different phases of organic–inorganic hybrid copper‐based halides, α‐ and β‐Gua3Cu2I5(Gua+=CN3H6+), were synthesized by solvent evaporation method, which they crystalize in the noncentrosymmetric space groupFdd2 with zero‐dimensional structure and centrosymmetric space groupC2/cwith one‐dimensional metal‐halogen framework, respectively. Interestingly, it is firstly demonstrated that Gua3Cu2I5simultaneously possesses reversible PL conversion and NLO switching properties in response to thermal stimulus. Strikingly, apart from heat, its structural phase transition can also be triggered by crystalline‐phase‐recognition (CPR) and mechanical force. These new findings may pave a path for future exploration of PTMs with multiple physical properties.
Funding Information
  • National Natural Science Foundation of China (21771159, 22071212)
  • Qinglan Project of Jiangsu Province of China
  • Priority Academic Program Development of Jiangsu Higher Education Institutions
  • Natural Science Foundation of Jiangsu Province (BK20220558)

This publication has 46 references indexed in Scilit: