Chiral TADF-active polymers for high-efficiency, circularly polarized organic light-emitting diodes

A beam of light can be divided into left-handed and right-handed polarized light by physical methods. Chiral fluorescent materials can emit different left-handed and right-handed polarized light when they are excited, which is called circularly polarized luminescence (CPL). To take full advantage of this property, circularly polarized organic light-emitting diodes (CP-OLEDs) can be fabricated with chiral fluorescent emitters to obtain circularly polarized electroluminescence (CPEL). CPEL has attracted extensive attention.