摘要
多组分异质结构纳米复合材料不仅可以继承每个组分原有的性能,而且还可以通过组分之间的相互作用诱导出新的化学、电子性能。通过逐步合成法制备的异质结构的金属有机框架/NaGdF_(4):Yb,Er(ZIF-67/NaGdF_(4):Yb,Er)复合材料避免了上转换(UC)纳米粒子的团聚和淬灭,并显示了更好的稳定性。在异质结构纳米复合材料中,ZIF-67被用作980 nm激发下的能量传输平台。与NaGdF_(4):Yb,Er纳米棒相比,由于各组分间的协同作用,异质结构ZIF-67/NaGdF_(4):Yb,Er的UC光致发光从绿色调为红色。
Multi-component heterostructure nanocomposites can not only inherit the original properties of each component,but also induce new chemical and electronic properties through the interaction between the compo⁃nents.The heterostructure zeolitic imidazolate framework/NaGdF_(4):Yb,Er(ZIF-67/NaGdF_(4):Yb,Er)was pre⁃pared by a stepwise synthesis strategy.And it avoided agglomeration and quenching of upconversion(UC)nanoparticles,and displayed better stability.In the heterostructure nanocomposites,ZIF-67 is employed as an en⁃ergy transmission platform under 980 nm excitation.Compared to pure NaGdF_(4):Yb,Er nanorods,the UC photo⁃luminescence of heterostructure ZIF-67/NaGdF_(4):Yb,Er is tuned from green to red owing to the synergistic effect of each component.
作者
刘毅
焦吉庆
吕柏泽
王久兴
LIU Yi;JIAO Ji-Qing;LYU Bai-Ze;WANG Jiu-Xing(College of Materials Science and Engineering,National Center of International Joint Research for Hybrid Materials Technology,National Base of International Sci.&Tech.Cooperation,Qingdao University,Qingdao 266071,China)
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2021年第2期166-171,共6页
Journal of Infrared and Millimeter Waves
基金
Supported by National Natural Science Foundation of China(51403114,51703104)
Science and Technology Innovation Program of Universities of Shandong Province(2020KJA012)
Natural Science Foundation of Shandong Province(BS2014CL025,ZR2017BEM035)
China Postdoctoral Science Foundation(2014M56053,2017M612198)
Postdoctoral Innovation Fund of Shandong Province(201402015)
Program for Introducing Talents of Discipline to Universities("111"plan)。
关键词
异质结构
可控合成
纳米复合材料
光致发光
上转换
heterostructure
controllable synthesis
nanocomposite
luminescence
upconversion
