Circularly Polarized Luminescence（CPL）and Circularly Polarized Electroluminescence（CPEL）from Solid-State Luminophores

Two types of circularly polarized luminescence（CPL）exist：left-rotating and right-rotating luminescence. In the solid state, the external environment of the luminophores differs from the solution state. The properties of CPL are different from those of the solution state because the molecular motion of the luminophore is inhibited and intermolecular interactions occur. As an external environment, a magnetic field can also produce CPL from optically inactive luminophores. This paper describes these specific CPL properties.