MMgSc(PO)₄:xDy（M = Ca/Sr）具有高热发射稳定性的单相全彩荧光粉。
MMgSc(PO):xDy (M = Ca/Sr) Single-Phase Full-Color Phosphor with High Thermal Emission Stability.
作者信息
Long Jiaqi, Chu Fujuan, Wang Yuzhen, Zhao Chong, Dong Wenfeng, Yuan Xuanyi, Ma Chaoyang, Wen Zicheng, Ma Ran, Du Miaomiao, Cao Yongge
机构信息
Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Department of Physics, Renmin University of China , Beijing 100872, China.
出版信息
Inorg Chem. 2017 Sep 5;56(17):10381-10386. doi: 10.1021/acs.inorgchem.7b01268. Epub 2017 Aug 24.
Two series of phosphors of CaMgSc(PO):Dy and SrMgSc(PO):Dy single-phase white-emitting phosphors with high thermal emission stability are synthesized by the high-temperature solid-state reaction. The crystal structure, photoluminescence (PL), PL excitation (PLE), and thermal PL quenching spectra of CaMgSc(PO):xDy and SrMgSc(PO):xDy were investigated and compared in detail. Upon excitation at 387 nm, MMgSc(PO):xDy (M = Ca/Sr) showed white emission centered at 480, 571, 660, and 754 nm. The white-emitting Dy-phosphor CaMgSc(PO):Dy (CMSP:Dy) had good terminal stability. The emission intensity of CaMgSc(PO):Dy still remained 95.2% of that at room temperature at 160 °C, and remained 77.3% at 300 °C under 387 nm excitation.
通过高温固相反应合成了具有高热发射稳定性的CaMgSc(PO₄)₃:Dy和SrMgSc(PO₄)₃:Dy单相白色发光磷光体的两个系列。详细研究并比较了CaMgSc(PO₄)₃:xDy和SrMgSc(PO₄)₃:xDy的晶体结构、光致发光(PL)、PL激发(PLE)和热PL猝灭光谱。在387nm激发下，MMgSc(PO₄)₃:xDy (M = Ca/Sr)呈现出以480、571、660和754nm为中心的白色发射。白色发光的Dy磷光体CaMgSc(PO₄)₃:Dy (CMSP:Dy)具有良好的热稳定性。在387nm激发下，CaMgSc(PO₄)₃:Dy的发射强度在160℃时仍保持室温下的95.2%，在300℃时仍保持77.3%。
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