化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (4) : 132-136. DOI: 10.19817/j.cnki.issn1006-3536.2022.04.027

新材料与新技术

Gd₂ZnTiO₆:Sm³⁺荧光粉的制备及发光性能研究

作者信息 +

Preparation and photoluminescence of Gd₂ZnTiO₆:Sm³⁺ phosphor

Zhou Qi, Zhang Wangxiyue, Jiang Xiaokang, Zhou Hengwei

Author information +

文章历史 +

Received		Published
2021-05-13		2022-04-20
Issue Date	Revised Date
2022-04-29	2021-05-13

PDF

摘要

通过溶胶-凝胶法制备出一系列Gd_2-2xZnTiO₆:xSm³⁺(x=0,0.01,0.03,0.05,0.07,0.09,0.11)橙红色荧光粉,并对样品的晶体结构、微观形貌及荧光性能进行了测试和研究。结果表明:所制Gd₂ZnTiO₆:Sm³⁺(GZT:Sm³⁺)荧光粉均为双钙钛矿结构,属于单斜晶系(空间群:P2₁/n),由几十微米大小无规则形状的颗粒堆积而成。在407nm近紫外光激发下,GZT:Sm³⁺的发射光谱展示出两个较弱的发射峰(⁴G_5/2→⁶H_5/2,566nm;⁴G_5/2→⁶H_9/2,650nm)和一个较强的发射峰(⁴G_5/2→⁶H_7/2,603nm)。当Sm³⁺离子摩尔浓度为5%时,GZT:Sm³⁺样品发生浓度淬灭现象;基于Dexter的理论,浓度淬灭效应机制为电偶极子-电偶极子(d-d)相互作用。Sm³⁺离子掺杂浓度较低时,样品呈现橙红色,随着掺杂浓度增加,荧光粉发光颜色逐渐向黄橙色区域偏移,其中Gd_1.98ZnTiO₆:0.02Sm³⁺荧光粉CIE色坐标为(0.6155,0.3835)与标准红光色坐标(0.670,0.330)较为接近,是很有潜力的LED用橙红色荧光粉。

Abstract

A series of Gd_2-2xZnTiO₆:xSm³⁺(x=0,0.01,0.03,0.05,0.07,0.09,0.11)orange-red phosphors were successfully prepared by sol-gel method.The crystal structure,morphology and luminescence performance of the samples were evaluated and studied.Results showed that the obtained double perovskite Gd₂ZnTiO₆:Sm³⁺(GZT:Sm³⁺) phosphors crystallized in the monoclinic space group P2₁/n,and composed of irregular particles with the size of tens of microns.Two weak emission peaks (⁴G_5/2→⁶H_5/2,566nm;⁴G_5/2→⁶H_9/2,650nm) and a strong emission peak (⁴G_5/2→⁶H_7/2,603nm) existed in the emission spectra under 407nm near UV excitation.GZT:Sm³⁺ phosphors happened concentration quenching when the concentration of Sm³⁺ was 5mol%.Analysis shown that the concentration quenching mechanism was identified as the electric dipole-dipole interactions(d-d),based on Dexter's theory.When the Sm³⁺ ion doping concentration was low,the sample appeared orange-red emission.With the increase of doping concentration,the luminescence color of GZT:Sm³⁺ phosphor gradually shifted to yellow-orange region.The CIE color coordinates of Gd_1.98ZnTiO₆:0.02Sm³⁺ phosphor was located at (0.6155,0.3835),which was close to the standard red color coordinates (0.670,0.330).Hence,GZT:Sm³⁺ as a kind of orange-red phosphors can be potentially applied to LEDs.

关键词

溶胶-凝胶法 / 双钙钛矿 / Gd₂ZnTiO₆:Sm³⁺ / 电偶极子-电偶极子相互作用 / 橙红色荧光粉

Key words

sol-gel method / double perovskite / Gd₂ZnTiO₆:Sm³⁺ / electric dipole-dipole interaction / orange-red phosphor

引用本文

引用格式 ▾

Gd₂ZnTiO₆:Sm³⁺荧光粉的制备及发光性能研究[J]. 化工新型材料, 2022, 50(4): 132-136 DOI:10.19817/j.cnki.issn1006-3536.2022.04.027

登录浏览全文

4963

注册一个新账户忘记密码

参考文献

原文顺序 | 出版日期 | 本文引用

[1] Krames M R,Shchekin O B,Muellermach R,et al.Status and future of high-power light-emitting diodes for solid-state lighting[J].Journal of Display Technology,2007,3(2):160-175.
[2] Oh J R,Cho S H,Lee Y H,et al.Enhanced forward efficiency of Y₃Al₅O₁₂:Ce³⁺ phosphor from white light-emitting diodes using blue-pass yellow-reflection filter[J].Optics Express,2009,17(9):7450-7457.
[3] Crawford M H.LEDs for solid-state lighting:performance challenges and recent advances[J].IEEE Journal of Selected Topics in Quantum Electronics,2009,15(4):1028-1040.
[4] George N C,Denault K A,Seshadri R.Phosphors for solid-state white lighting[J].Annual Review of Materials Research,2013,43:481-501.
[5] Zhang X,Chen Y,Zhou L,et al.Synthesis of a broad-band excited and multicolor tunable phosphor Gd₂SiO₅:Ce³⁺,Tb³⁺,Eu³⁺ for near-ultraviolet light-emitting diodes[J].Industrial & Engineering Chemistry Research,2014,53(16):6694-6698.
[6] Cong Z,Wu Y H,Wang D H,et al.A near-ultraviolet (NUV) converting blue-violet Mg₂SiO₄:Ce³⁺ phosphor for white light-emitting-diodes (w-LEDs)[J].Journal of Luminescence,2018,207:241-245.
[7] Liu Q,Xiong P,Liu X,et al.Deep red SrLaGa₃O₇:Mn⁴⁺ for near ultraviolet excitation of white light LEDs[J].Journal of Materials Chemistry C,2021,9:3969-3977.
[8] Chen Hui,Lin Hang,Huang Qingming,et al.A novel double-perovskite Gd₂ZnTiO₆:Mn⁴⁺ red phosphor for UV-based w-LEDs:structure and luminescence properties[J].Journal of Materials Chemistry C,2016,4(12):2374-2381.
[9] Fu Anjie,Guan Anxiang,Gao Fangfang,et al.A novel double perovskite La₂ZnTiO₆:Eu³⁺ red phosphor for solid-state lighting:synthesis and optimum luminescence[J].Optics & Laser Technology,2017,96:43-49.
[10] Li J Q,Liao J S,Wen H R,et al.Multiwavelength near infrared downshift and downconversion emission of Tm³⁺ in double perovskite Y₂MgTiO₆:Mn⁴⁺/Tm³⁺ phosphors via resonance energy transfer[J].Journal of Luminescence,2019,213:356-363.
[11] Xie J,Ding N,Li X,et al.Luminescence properties of double perovskite Gd₂MgTiO₆:Tb³⁺ phosphors by solid-state reaction method[J].Journal of Materials Science:Materials in Electronics,2019,30(19):17923-17932.
[12] Ji C,Huang Z,Wen J,et al.Blue-emitting Bi-doped double perovskite Gd₂ZnTiO₆ phosphor with near-ultraviolet excitation for warm white light-emitting diodes[J].Journal of Alloys and Compounds,2019,788:1127-1136.
[13] Lee Soo Hyun,Cha Youngjin,Kim Hyosung,et al.Luminescent properties of Eu³⁺-activated Gd₂ZnTiO₆ double perovskite red-emitting phosphors for white light-emitting diodes and field emission displays[J].RSC Advance,2018,8(20):11207-11215.
[14] Chen W,Liu Z,Shen L,et al.Design and energy transfer mechanism for single-phased Gd₂MgTiO₆:Bi³,Eu³⁺ tunable white light-emitting phosphors[J].Journal of Materials Science,2019,54(5):4056-4072.
[15] Yuan H,Huang Z,Xu L,et al.La₂MgTiO₆:Bi³⁺/Mn⁴⁺ photoluminescence materials:molten salt preparation,Bi³⁺→Mn⁴⁺ energy transfer and thermostability[J].Journal of Luminescence,2020,224:117290.
[16] 温慧霞,尹喜爱,李红喜,等.近紫外白光LED用Sr_(3-x)MgSi₂O₈:x%Sm³⁺(x=1～10)高效橙红色荧光粉的制备与发光性能研究[J].化工新型材料,2020,48(8):190-193.
[17] 石彩文,汲长艳,曾婷,等.高色纯度高热稳定性红色荧光粉Sr₃La₂Ge₃O₁₂:Sm³⁺的合成及其性能[J].无机化学学报,2020,36(5):135-141.
[18] 徐非凡,张永,汤徐屹,等.橙红色荧光粉Ba₂La₈(SiO₄)₆O₂:Sm³⁺的合成及光致发光特性研究[J].人工晶体学报,2019,48(10):1873-1878.
[19] Nibedita Das,Masood A Nath,Gohil S Thakur,et al.Monoclinically distorted perovskites,A₂ZnTiO₆(A=Pr,Gd):Rietveld refinement,and dielectric studies[J].Journal of Solid State Chemistry,2015,229:97-102.
[20] Blasse G.Energy transfer in oxidic phosphors[J].Physics Letters A,1968,28(6):444-445.
[21] Van Uitert L G.Characterization of energy transfer interaction between rare earth ions[J].Journal of the Electro chemical Society,1967,114:1048-1053.