Electroluminescence (EL) spectra of the devices are very similar to photoluminescence (PL) spectrum of the single deposited LiBq_4 film with peak wavelength at 492 nm.

• 器件的电致发光 (EL)光谱与LiBq4 薄膜的光致发光 (PL)光谱相同 ,峰值波长均为 4 92nm。