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DOI | 10.1126/science.aaq1308 |
Origin of the bright photoluminescence of few-atom silver clusters confined in LTA zeolites | |
Grandjean, Didier1; 39;Acapito, Francesco2 | |
2018-08-17 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 361期号:6403页码:686-689 |
文章类型 | Article |
语种 | 英语 |
国家 | Belgium; Vietnam; Italy; France |
英文摘要 | Silver (Ag) clusters confined in matrices possess remarkable luminescence properties, but little is known about their structural and electronic properties. We characterized the bright green luminescence of Ag clusters confined in partially exchanged Ag-Linde Type A (LTA) zeolites by means of a combination of x-ray excited optical luminescence-extended x-ray absorption fine structure, time-dependent-density functional theory calculations, and time-resolved spectroscopy. A mixture of tetrahedral Ag-4(H2O)(x)(2+) (x = 2 and x = 4) clusters occupies the center of a fraction of the sodalite cages. Their optical properties originate from a confined two-electron superatom quantum system with hybridized Ag and water O orbitals delocalized over the cluster. Upon excitation, one electron of the s-type highest occupied molecular orbital is promoted to the p-type lowest unoccupied molecular orbitals and relaxes through enhanced intersystem crossing into long-lived triplet states. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442818200040 |
WOS关键词 | ELECTRON-SPIN-RESONANCE ; NANOCLUSTERS ; AG ; EMISSION ; FLUOROPHORES ; FLUORESCENCE ; IRRADIATION ; MATRICES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/199388 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Katholieke Univ Leuven, Lab Solid State Phys & Magnetism, Celestijnenlaan 200D, B-3001 Leuven, Belgium; 2.Katholieke Univ Leuven, Mol Visualizat & Photon, Celestijnenlaan 200F, B-3001 Leuven, Belgium; 3.Hanoi Natl Univ Educ, Fac Chem, 136 Xuan Thuy, Hanoi, Vietnam; 4.Katholieke Univ Leuven, Dept Chem, Celestijnenlaan 200F, B-3001 Leuven, Belgium; 5.Univ Milano Bicocca, Dipartimento Sci Mat, Via Cozzi 55, I-20125 Milan, Italy; 6.European Synchrotron Radiat Facil, LISA Collaborating Res Grp, Consiglio Nazl Ric, Ist Officina Mat,Operat Grp Grenoble, Grenoble, France; 7.ESRF European Synchrotron, Dutch Belgian Beamline, CS 40220, F-38043 Grenoble, France; 8.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Celestijnenlaan 200F, B-3001 Leuven, Belgium |
推荐引用方式 GB/T 7714 | Grandjean, Didier,39;Acapito, Francesco. Origin of the bright photoluminescence of few-atom silver clusters confined in LTA zeolites[J]. SCIENCE,2018,361(6403):686-689. |
APA | Grandjean, Didier,&39;Acapito, Francesco.(2018).Origin of the bright photoluminescence of few-atom silver clusters confined in LTA zeolites.SCIENCE,361(6403),686-689. |
MLA | Grandjean, Didier,et al."Origin of the bright photoluminescence of few-atom silver clusters confined in LTA zeolites".SCIENCE 361.6403(2018):686-689. |
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