Synthesis and luminescent properties: Mn4+-doped Sr3NaNbO6 phosphor with far-red emission

• Published in: Journal of materials science. Materials in electronics Vol. 33; no. 3; pp. 1441 - 1451
• Main Authors: Wang, Wei, Xu, Da, Chen, Jingjing, Mao, Zhiyong, Wang, Dajian
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.01.2022; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Climate change; Cultivation; Efficiency; Electromagnetic absorption; Emission spectra; Energy consumption; Excitation spectra; Factories; Fluorides; High temperature; Laboratories; Light emitting diodes; Luminescence; Materials Science; Morphology; Optical and Electronic Materials; Optical properties; Phase composition; Phosphors; Photoluminescence; Raw materials
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-021-07612-9

The unique luminescence properties of far-red emitting materials make them important components in the phosphor-converted LEDs (pc-LEDs) for plant cultivation. Mn 4+ -doped phosphors can realize deep-red and far-red emission in the range of 600–800 nm owing to the characteristic transition ( 2 E g  →  4 A 2g ) of Mn 4+ . Herein, a novel Sr 3 NaNbO 6 :Mn 4+ phosphor with far-red emitting was synthesized via the traditional high-temperature solid-state reaction method. The phase composition and morphological characteristics as well as the photoluminescent properties of Sr 3 NaNbO 6 :Mn 4+ were investigated in detail. The photoluminescence excitation spectra and photoluminescence spectra showed that Sr 3 NaNbO 6 :Mn 4+ phosphor has an emission band centered at 700 nm under the excitation of 370 nm. The emission band in the region of 600–800 nm of Sr 3 NaNbO 6 :Mn 4+ phosphor matches well with the far-red light absorption P FR phytochrome, suggesting that Sr 3 NaNbO 6 :Mn 4+ phosphor can meet the requirements of practical application for indoor plant cultivation.