Link：https://pubs.rsc.org/en/Content/ArticleLanding/2021/SC/D1SC03818D

In this work, we reported an organic crystal which is capable of elastic bending and plastic twist, and still have good elasticity after twist, Besides, the crystals can be stretched reversibly within a certain strain. Interestingly, the spectra of the crystals under stretching significantly differ from the initial state, and the blue shift of the emission wavelength occurs obviously during the stretching process. There is a definite linear relationship between wavelength change and stretching strain, so the crystal can be used as a potential tension sensing material. Hence, an organic crystal that can respond to tensile forces has been successfully obtained, which fills the gap of the response of organic single crystal to tensile force and expands the application field of organic crystal greatly.