Photomechanical properties in metal-organic crystals

Abstract

The emergence of materials that can effectively convert photon energy (light) into motion (mechanical work) and change their shapes on command are of great interests for their potential in the fabrication of devices (powered by light) that will revolutionize the technologies of optical actuators, smart medical devices, soft robotics, artificial muscles and flexible electronics. Recently¸ metal-organic crystals have emerged as desirable smart hybrid materials that can hop, split and jump. Thus, the incorporation of them into polymer host objects can control movement from molecules to millimetres, opening up a new world of light-switching smart materials. This feature article briefly summarizes the recent part of the fast growing literature on photomechanical properties in metal-organic crystals such as coordination compounds, coordination polymers (CPs)¸ and meal-organic framework (MOFs). The article highlights the contributions of our group along with others in this area and aims to provide a consolidated idea regarding the engineering strategies, and structure-property relationships of these hybrid materials for such rare phenomenon with diverse potential applications.