Aggregation-Induced Emission Metallocuboctahedra for White Light Devices

Abstract

Materials for organic light-emitting devices which exhibit superior emission properties in both the solution and solid states with a high fluorescence quantum yield have been extensively sought after. Herein, two metallocages, S1 and S2, were constructed, and both showed typical aggregation-induced emission (AIE) features with intense yellow fluorescence. By adding blue-emissive 9,10-dimethylanthracene, pure white light emission can be produced in the solution of S1 and S2. Furthermore, due to the remarkable AIE feature and good fluorescence quantum yield in the solid state, metallocages are highly emissive in the solid state and can be utilized to coat blue LED bulbs or integrate with blue-emitting chips to obtain white light. This study advances the usage of metallocages as practical solid-state fluorescent materials and provides a fresh perspective on highly emissive AIE materials.

3,5‐difluoro‐2,4,6‐trinitrophenol: A high‐energy compound born under the “NO2FNO2” construction strategy

“…The types of crystal packing also have a huge impact on the sensitivity of the compound. In general, planar layered packing and wavelike layered packing allow for easier sliding, which reduces sensitivity [42]. DFTNP possesses wavelike layered packing like benzene in the solid‐state.…”