Luminescence in Manganese (II)-Doped SrZn₂S₂O Crystals From Multiple Energy Conversion.

ABSTRACT: Under the excitation of ultraviolet, X-ray, and mechanical stress, intense orange luminescence (Mn²⁺, ⁴T₁ → ⁶A₁) can be generated in Mn²⁺-doped SrZn₂S₂O crystal in orthorhombic space group of Pmn2₁. Herein, the multiple energy conversion in SrZn₂S₂O:Mn²⁺, that is, photoluminescence (PL), X-ray-induced luminescence, and mechanoluminescence, is investigated. Insight in luminescence mechanisms is gained by evaluating the Mn²⁺ concentration effects. Under the excitation of metal-to-ligand charge-transfer transition, the most intense PL is obtained. X-ray-induced luminescence shows similar features with PL excited by band edge UV absorption due to the sa

SUBMITTER: Ma R 

PROVIDER: S-EPMC7500203 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature