Abstract
Zn 2 SnO 4 , which has an inverse spinel structure, was adopted as the host material of a new green emitting phosphor. The photoluminescent (PL) properties of a series of europium-activated zinc stannate synthesized by vibrating milled solid state reaction have been investigated. One broaden emission hand from the Zn 2 SnO 4 : Eu 2 + phosphor calcined at 1000°C to 1200°C for 3 h in air atmosphere is clearly observed at 525 nm under 374 nm UV ray excitation. The emission band from Zn 2 SnO 4 : Eu 3 + can also be observed under 464 nm-ray excitation. The reduction of Eu 3 + →Eu 2 + was firstly discovered in stannate phosphor of Zn 2 SnO 4 : Eu synthesized in air condition.
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