Synthesis, characterization and formation mechanism of quasi-spherical Gd2O2S:Pr3+ phosphor by sulfurization of oxide powder using ammonium thiocyanate and argon gas

被引：0

作者：

Qu, Huilin ^{[1
,2
]}

Lian, Jingbao ^{[1
]}

Wu, Nianchu ^{[1
,2
]}

Zhang, Xue ^{[1
,2
]}

He, Jiao ^{[1
,2
]}

机构：

[1] Liaoning Petrochem Univ, Sch Mech Engn, Fushun 113001, Peoples R China

[2] Liaoning Petrochem Univ, New Funct Mat Lab, Fushun 113001, Peoples R China

来源：

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2022年 / 24卷 / 7-8期

基金：

中国国家自然科学基金;

关键词：

Rare earth oxysulfide; Phosphors; Sulfurization; Ammonium thiocyanate; Photoluminescence; SCINTILLATION CERAMICS;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quasi-spherical Gd2O2S:Pr3+ green phosphor was successfully synthesized via sulfurization of oxide powders using ammonium thiocyanate and argon gas. XRD analysis shows that the Gd2O2S powder is pure phase after calcination and sulfurization. FE-SEM shows that the precursor can eventually be transformed into quasi-spherical Gd2O2S powder with an average size of 150 nm. Moreover, the formation mechanism of Gd2O2S has also been proposed. PL analysis shows that the emission spectrum of Gd2O2S:1.00%Pr3+ exists strong green emission band centered at 513 nm upon excitation at 460 nm light, and its corresponding CIE coordinate is (0.331, 0.564).

引用

页码：385 / 394

页数：10

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