Photoluminescence properties of Sr2MgB2O6:Eu3+ red phosphor under near-UV excitation

• Sr2MgB2O6:Eu3+ phosphor was synthesized by modified solid-state reaction method.
• Sr2MgB2O6:Eu3+ can be efficiently excited by 394 nm and emit red light at 615 nm.
• Eu3+ ions occupy both Sr2+-site and Mg2+-site in Sr2MgB2O6.
• Na+ is a suitable charge compensator for Sr2MgB2O6:Eu3+ phosphor.
• Incorporation of Mg2+, Ca2+, Ba2+ can raise the luminescence of Sr2MgB2O6:Eu3+.

Sr2MgB2O6:Eu3+ red phosphor has been synthesized by modified solid-state reaction method. The photoluminescence properties of Sr2MgB2O6:Eu3+ phosphor have been investigated. Sr2MgB2O6:Eu3+ phosphor can be effectively excited by 394 nm and generate red emission at 615 nm. Eu3+ ions occupy both Sr2+-site and Mg2+-site in Sr2MgB2O6. Univalent charge compensators (Li+, Na+ and K+) can obviously improve the photoluminescence properties of Sr2MgB2O6:Eu3+ phosphor and Na+ is the optimal charge compensator. The effect of substitution of M2+ (M = Mg, Ca or Ba) ion for Sr2+ on the photoluminescence properties of Sr2MgB2O6:Eu3+ phosphor has also been discussed. It implies that Sr2MgB2O6:Eu3+ may be a potential red phosphor for near-UV W-LEDs or other display devices.

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