Enhanced chiroptical activity for narrow deep-blue emission in axial chiral frameworks via three-dimensional interlocking

The 3D-interlocking strategy applied to rotatable axial chirality skeletons results in synchronously enhanced luminous dissymmetry factor (3.0 × 10 −3 ) and narrowed FWHM (18 nm), facilitating CP-OLEDs with η EQE surpassing 5.0% and CIE y < 0.03.