Quantifiable stretching-induced fluorescence shifts of an elastically bendable and plastically twistable organic crystal.

ABSTRACT: Organic crystals with mechanical stimulus-response properties are being developed increasingly nowadays. However, the studies involving tensile-responsive crystals are still lacking due to the strict requirement of crystals with good flexibility. In this work, an organic crystal with the ability of elastic bending and plastic twisting upon loading stress and shearing force, respectively, is reported. The deformability in different directions enables the crystal to be a model for tensile-responsive study. Indeed, blue shifts of fluorescence were observed when the tensile forces loaded upon the needle-shaped crystal were stretched to a certain degree. The mathematical correlation between emission wavelength changes and stretching strain was obtained for the first time, which proves that the

SUBMITTER: Di Q 

PROVIDER: S-EPMC8635174 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature