Effects of charge compensator Li+ co-doping on the structure and luminescence properties of Cd2V2O7:Eu3+ red phosphors. Issue 8 (1st June 2018)

• Record Type: Journal Article
• Authors: Zhang, Wentao; Yan, Guilin; Dai, Siyi; Zhang, Peicong; Zhao, Qingdong; Qiu, Kehui; Deng, Miao
• Is Part Of: Ceramics international. Volume 44:Issue 8(2018)
• Page Start: 9534
• Page End: 9539
• Publication Date: 2018-06-01
• Subjects: Cd2V2O7 -- Red phosphor -- Luminescence -- Rare earth doping -- Charge compensation; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2018.02.173
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: A series of Cd2 V2 O7 :Eu 3+, Li + red phosphors was prepared by a solid-state reaction method. A pure Cd2 V2 O7 phase with monoclinic structure was obtained by heating to a temperature range of 600–850 °C. The effects of Eu 3+ doping and Li + co-doping concentrations on the luminescence properties of Cd2 V2 O7 :Eu 3+, Li + samples were investigated. Under excitation at 375 nm, the as-prepared Cd2 V2 O7 :Eu 3+ phosphors exhibit a red emission peak at 618 nm due to the 5 D0 → 7 F2 electronic transition of Eu 3+ . The luminescence properties of Cd2 V2 O7 :Eu 3+, Li + samples are improved significantly by the addition of Li + as charge compensator compared to the Cd2 V2 O7 :Eu 3+ phosphor. The results indicate that Cd2 V2 O7 :Eu 3+, Li + phosphor could be a promising red phosphor in near ultraviolet-excited white light-emitting diodes for warm white light.