Europium-bearing organic framework with excellent X-ray scintillating luminescence  

作　　者：Yugang Zhang Lanhua Chen Xia Wang Wei Liu Shu'ao Wang 

机构地区：[1]State Key Laboratory of Radiation Medicine and Protection,School for Radiological and Interdisciplinary Sciences(RAD-X)and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions,Soochow University,Suzhou,215123,China [2]School of Environmental and Materials Engineering,Yantai University,Yantai,264005,China

出　　处：《Journal of Rare Earths》2024年第2期251-255,I0001,共6页稀土学报（英文版）

基　　金：Project supported by the National Key R&D Program of China(2021YFB3200400)。

摘　　要：Two europium-bearing organic frameworks,termed as EuTPO-1 and EuTPO-2(H_(3)TPO=tris(4-carboxylphenyI)-phosphineoxide),are reported in this work.A series of characterizations of EuTPO-1and EuTPO-2,such as X-ray crystallography and photoluminescence spectroscopy,was performed to expatiate their structure and physicochemical properties.Both of them are constructed by dimers of the europium-oxygen subunit of [Eu_(2)O_(16)] and TPO molecule.Benefiting from high X-ray stopping attenuation and excellent luminescence efficiency,they emit sufficient luminescence when irradiated with Xrays.Meanwhile,they possess stable light outputs when exposed to high humidities and strong radiation dose,outperforming the commercial scintillator CsI:Tl.This result paves the way for developing new scintillator and enriches the compound of europium-bearing organic framework with X-ray scintillating luminescence.

关 键 词：Metal-organic frameworks Scintillating material Luminescence efficiency Rare earths 

分 类 号：TB34[一般工业技术—材料科学与工程]