另外,通过理论模拟和实验结果,详细研究了Zn2GeO4:Mn2+样品在高压条件下的结构稳定性。更重要的是,得益于该光学压力计的高灵敏度,能够在非等静压条件下检测单轴压力,展示了其在科学研究、工业以及日常应用中的巨大潜力。由于Mn2+激活的Zn2GeO4绿色发光材料在高压下具有超高灵敏度和显著的颜色可调发射特性,预计该材料...
此外,发射带半高全宽(FWHM)从32.3 nm增加到102.9 nm,展现出另一个灵敏度指标——dFWHM/dp高达17.0 nm/GPa,这些数据使得Zn2GeO4:Mn2+在光学压力计领域的表现名列前茅。 研究团队还对Zn2GeO4:Mn2+的性能进行了详尽的理论模拟和实验分析,确保其在高压条件下的结构稳定性。这一研究不仅满足了高灵敏度光学压力传感...
In this work, a series of Zn1.96‐xGeO4+1/2x:Mn0.04Ybx (x=0.004, 0.04, 0.08 and 0.4) nanophosphors with tunable morphology and particle size have been prepared through solvothermal method, showing brilliant near‐infrared (NIR) down‐conversion performance through the energy transfer from Mn2...
Zn2GeO4:Mn2+ phosphors were synthesized by a solid state reaction in air condition. In the synthesis, MnCO3, MnO2 or KMnO4 was respectively used as manganese source material. The phase and luminescent properties of the synthesized Zn2GeO4:Mn2+ phosphors were investigated. All of the ...
Under excitation of low-voltage electron beams, Zn2GeO4:Mn2+ shows strong green emission band dominating at 535 nm, corresponding to the 4T1(4G)–6A1(6S) emission of Mn2+ ions. The emission intensity and chromaticity coordinates of Zn2GeO4:Mn2+ as a function of accelerating voltage and...
The native defect VGe as a hole traps is responsible for the long afterglow emission in Zn2GeO4:Mn2+, Cr3+ phosphor. The possible mechanism of this phosphor has also been discussed.doi:10.1016/j.optmat.2015.01.045Cong, YanHe, Yangyang...
Synthesis and characterization of Zn2GeO4:Mn2+ phosphor for field emission displays[J] . Qiuhong Zhang,Jing Wang.Applied Physics A . 2012 (4)ZHANG Q H; WANG J.Synthesis and characterization of ZnGeO4:Mn2: phosphor for field emission displays.Appl Phys A.2012.943-948...
Kang, C. Peng, et al., "(Zn, Mg)2GeO4:Mn2+ Submicrorods as Promising Green Phosphors for Field Emission Displays: Hydrothermal Synthesis and Luminescence Properties," Dalton Trans., 40, 9379-87 (2011).Zn, Mg)(2)GeO4:Mn2+ submicrorods as promising green phosphors for field emission ...
电子结构光学性质采用基于密度泛函理论的平面波超软赝势方法对本征Zn2 GeO4,Mn2掺杂Zn2 GeO4,Mn2 +/N2-共掺杂Zn2 GeO4超晶胞进行了几何结构优化,计算了掺杂前后体系的晶格常数,能带结构,态密度和光学性质.结果表明,Mn离子掺入后,Mn离子3d轨道与O离子2p轨道之间有强烈的轨道杂化效应,掺杂系统不稳定,而Mn/N离子...
利用第一性原理的局域密度近似(LDA)方法,对Zn2GeO4,Mn2+掺杂Zn2GeO4,Mn2+,Mn4+共掺杂Zn2GeO4的光电性质进行了理论研究.结果表明,Mn2+,Mn4+掺杂可以提高Zn2GeO4的载流子浓度,从而改善Zn2GeO4的导电性.Mn2+离子的掺杂导致Zn2GeO4对光的吸收由紫外区域扩展到可见光区域, Mn2+,Mn4+共掺杂促进Zn2GeO...