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Article: Lighting Silver(I) Complexes for Solution-Processed Organic Light-Emitting Diodes and Biological Applications via Thermally Activated Delayed Fluorescence

TitleLighting Silver(I) Complexes for Solution-Processed Organic Light-Emitting Diodes and Biological Applications via Thermally Activated Delayed Fluorescence
Authors
KeywordsAnticancer treatment
Biological applications
Delayed fluorescence
Excited state lifetimes
External quantum efficiency
Issue Date2020
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/ic
Citation
Inorganic Chemistry, 2020, v. 59 n. 17, p. 12122-12131 How to Cite?
AbstractLuminescent coinage metal complexes have shown promising applications as electroluminescent emitters, photocatalysts/photosensitizers, and bioimaging/theranostic agents, rendering them attractive alternatives to transition metal complexes based on iridium, ruthenium, and platinum that have extremely low earth abundance. In comparison to the widely studied Au(I) and Cu(I) complexes, Ag(I) complexes have seldom been explored in this field because of their inferior emission properties. Herein, we report a novel series of [Ag(N^N)(P^P)]PF6 complexes exhibiting highly efficient thermally activated delayed fluorescence by using easily accessible neutral diamine ligands and commercially available ancillary diphosphine chelates. The photoluminescence quantum yields (PLQYs) of the Ag(I) emitters are ≤0.62 in doped films. The high PLQY with a large delayed fluorescence ratio enabled the fabrication of solution-processed organic light-emitting diodes (OLEDs) with a high maximum external quantum efficiency of 8.76%, among the highest values for Ag(I) emitter-based OLEDs. With superior emission properties and an excited state lifetime in the microsecond regime, together with its potent cytotoxicity, the selected Ag(I) complex has been used for simultaneous cell imaging and anticancer treatment in human liver carcinoma HepG2 cells, revealing the potential of luminescent Ag(I) complexes for biological applications such as theranostics.
Persistent Identifierhttp://hdl.handle.net/10722/288445
ISSN
2019 Impact Factor: 4.825
2015 SCImago Journal Rankings: 1.873

 

DC FieldValueLanguage
dc.contributor.authorTeng, T-
dc.contributor.authorLi, K-
dc.contributor.authorCheng, G-
dc.contributor.authorWang, Y-
dc.contributor.authorWang, J-
dc.contributor.authorLi, J-
dc.contributor.authorZhou, C-
dc.contributor.authorLiu, H-
dc.contributor.authorZou, T-
dc.contributor.authorXiong, J-
dc.contributor.authorWu, C-
dc.contributor.authorZhang, HX-
dc.contributor.authorChe, CM-
dc.contributor.authorYang, C-
dc.date.accessioned2020-10-05T12:13:02Z-
dc.date.available2020-10-05T12:13:02Z-
dc.date.issued2020-
dc.identifier.citationInorganic Chemistry, 2020, v. 59 n. 17, p. 12122-12131-
dc.identifier.issn0020-1669-
dc.identifier.urihttp://hdl.handle.net/10722/288445-
dc.description.abstractLuminescent coinage metal complexes have shown promising applications as electroluminescent emitters, photocatalysts/photosensitizers, and bioimaging/theranostic agents, rendering them attractive alternatives to transition metal complexes based on iridium, ruthenium, and platinum that have extremely low earth abundance. In comparison to the widely studied Au(I) and Cu(I) complexes, Ag(I) complexes have seldom been explored in this field because of their inferior emission properties. Herein, we report a novel series of [Ag(N^N)(P^P)]PF6 complexes exhibiting highly efficient thermally activated delayed fluorescence by using easily accessible neutral diamine ligands and commercially available ancillary diphosphine chelates. The photoluminescence quantum yields (PLQYs) of the Ag(I) emitters are ≤0.62 in doped films. The high PLQY with a large delayed fluorescence ratio enabled the fabrication of solution-processed organic light-emitting diodes (OLEDs) with a high maximum external quantum efficiency of 8.76%, among the highest values for Ag(I) emitter-based OLEDs. With superior emission properties and an excited state lifetime in the microsecond regime, together with its potent cytotoxicity, the selected Ag(I) complex has been used for simultaneous cell imaging and anticancer treatment in human liver carcinoma HepG2 cells, revealing the potential of luminescent Ag(I) complexes for biological applications such as theranostics.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/ic-
dc.relation.ispartofInorganic Chemistry-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.subjectAnticancer treatment-
dc.subjectBiological applications-
dc.subjectDelayed fluorescence-
dc.subjectExcited state lifetimes-
dc.subjectExternal quantum efficiency-
dc.titleLighting Silver(I) Complexes for Solution-Processed Organic Light-Emitting Diodes and Biological Applications via Thermally Activated Delayed Fluorescence-
dc.typeArticle-
dc.identifier.emailCheng, G: ggcheng@hku.hk-
dc.identifier.emailChe, CM: chemhead@hku.hk-
dc.identifier.authorityCheng, G=rp02145-
dc.identifier.authorityChe, CM=rp00670-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.inorgchem.0c01054-
dc.identifier.pmid32845614-
dc.identifier.scopuseid_2-s2.0-85090487766-
dc.identifier.hkuros314899-
dc.identifier.volume59-
dc.identifier.issue17-
dc.identifier.spage12122-
dc.identifier.epage12131-
dc.publisher.placeUnited States-

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