dc.contributor.author | Yuan, Peng | |
dc.contributor.author | Zhang, Hansong | |
dc.contributor.author | Zhou, Yang | |
dc.contributor.author | He, Tengyue | |
dc.contributor.author | Malola, Sami | |
dc.contributor.author | Gutiérrez‐Arzaluz, Luis | |
dc.contributor.author | Li, Yingwei | |
dc.contributor.author | Deng, Guocheng | |
dc.contributor.author | Dong, Chunwei | |
dc.contributor.author | Huang, Renwu | |
dc.contributor.author | Song, Xin | |
dc.contributor.author | Teo, Boon K. | |
dc.contributor.author | Mohammed, Omar F. | |
dc.contributor.author | Häkkinen, Hannu | |
dc.contributor.author | Bakr, Osman. M. | |
dc.contributor.author | Zheng, Nanfeng | |
dc.date.accessioned | 2024-01-12T11:22:27Z | |
dc.date.available | 2024-01-12T11:22:27Z | |
dc.date.issued | 2024 | |
dc.identifier.citation | Yuan, P., Zhang, H., Zhou, Y., He, T., Malola, S., Gutiérrez‐Arzaluz, L., Li, Y., Deng, G., Dong, C., Huang, R., Song, X., Teo, B. K., Mohammed, O. F., Häkkinen, H., Bakr, O. M., & Zheng, N. (2024). Thermally activated delayed fluorescence Au‐Ag‐oxo nanoclusters : From photoluminescence to radioluminescence. <i>Aggregate</i>, <i>Early View</i>. <a href="https://doi.org/10.1002/agt2.475" target="_blank">https://doi.org/10.1002/agt2.475</a> | |
dc.identifier.other | CONVID_197719171 | |
dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/92777 | |
dc.description.abstract | Thermally activated delayed fluorescence (TADF) materials have numerous applications in energy conversion and luminescent imaging. However, they are typically achieved as metal-organic complexes or pure organic molecules. Herein, we report the largest Au-Ag-oxo nanoclusters to date, Au18Ag26(R1COO)12(R2C≡C)24(μ4-O)2(μ3-O)2 (Au18Ag26, where R1 = CH3-, Ph-, CHOPh- or CF3Ph-; R2 = Ph- or FPh-). These nanoclusters exhibit exceptional TADF properties, including a small S1-T1 energy gap of 55.5 meV, a high absolute photoluminescence quantum yield of 86.7%, and a microseconds TADF decay time of 1.6 μs at ambient temperature. Meanwhile, Au18Ag26 shows outstanding stability against oxygen quenching and ambient conditions. Atomic level analysis reveals the strong π⋯π and C-H⋯π interactions from the aromatic alkynyl ligands and the enhancement of metal-oxygen-metal interactions by centrally coordinated O2−. Modeling of the electronic structure shows spatially separated highest occupied molecular orbital and lowest unoccupied molecular orbital, which promote charge transfer from the ligand shell, predominantly carboxylate ligands, to O2−-embedded metal core. Furthermore, TADF Au-Ag-oxo nanoclusters exhibit promising radioluminescence properties, which we demonstrate for X-ray imaging. Our work paves the way for the design of TADF materials based on large metal nanoclusters for light-emission and radioluminescence applications. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | |
dc.publisher | John Wiley & Sons | |
dc.relation.ispartofseries | Aggregate | |
dc.rights | CC BY 4.0 | |
dc.subject.other | Au-Ag-oxo nanoclusters | |
dc.subject.other | photoluminescence | |
dc.subject.other | radioluminescence | |
dc.subject.other | TADF | |
dc.subject.other | X-ray imaging | |
dc.title | Thermally activated delayed fluorescence Au‐Ag‐oxo nanoclusters : From photoluminescence to radioluminescence | |
dc.type | article | |
dc.identifier.urn | URN:NBN:fi:jyu-202401121276 | |
dc.contributor.laitos | Fysiikan laitos | fi |
dc.contributor.laitos | Department of Physics | en |
dc.contributor.oppiaine | Nanoscience Center | fi |
dc.contributor.oppiaine | Nanoscience Center | en |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | |
dc.type.coar | http://purl.org/coar/resource_type/c_2df8fbb1 | |
dc.description.reviewstatus | peerReviewed | |
dc.relation.issn | 2692-4560 | |
dc.relation.volume | Early View | |
dc.type.version | publishedVersion | |
dc.rights.copyright | © 2024 The Authors. Aggregate published by SCUT, AIEI, and John Wiley & Sons Australia, Ltd. | |
dc.rights.accesslevel | openAccess | fi |
dc.relation.grantnumber | 292352 | |
dc.relation.grantnumber | 319208 | |
dc.subject.yso | röntgenkuvaus | |
dc.subject.yso | fotoluminesenssi | |
dc.subject.yso | fluoresenssi | |
dc.subject.yso | luminesenssi | |
dc.format.content | fulltext | |
jyx.subject.uri | http://www.yso.fi/onto/yso/p10181 | |
jyx.subject.uri | http://www.yso.fi/onto/yso/p26631 | |
jyx.subject.uri | http://www.yso.fi/onto/yso/p3265 | |
jyx.subject.uri | http://www.yso.fi/onto/yso/p1646 | |
dc.rights.url | https://creativecommons.org/licenses/by/4.0/ | |
dc.relation.doi | 10.1002/agt2.475 | |
dc.relation.funder | Suomen Akatemia | fi |
dc.relation.funder | Suomen Akatemia | fi |
dc.relation.funder | Research Council of Finland | en |
dc.relation.funder | Research Council of Finland | en |
jyx.fundingprogram | Akatemiaprofessorin tehtävä, SA | fi |
jyx.fundingprogram | Akatemiaprofessorin tutkimuskulut, SA | fi |
jyx.fundingprogram | Research post as Academy Professor, AoF | en |
jyx.fundingprogram | Research costs of Academy Professor, AoF | en |
jyx.fundinginformation | The authors acknowledge the National Natural Science Foundation of China (grant numbers: 92261207 and 21890752) and NSFC Center for Single-Atom Catalysis (grant number: 22388102), the New Cornerstone Science Foundation, the 111 Project (grant number: B08027) and the King Abdullah University of Science and Technology (KAUST) for financial support. The computational work at the University of Jyväskylä was supported by the Academy of Finland (grant numbers: 292352 and 319208). | |
dc.type.okm | A1 | |