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dc.contributor.authorGutierrez Arzaluz, Luis
dc.contributor.authorJia, Jiangtao
dc.contributor.authorGu, Chun
dc.contributor.authorCzaban-Jozwiak, Justyna
dc.contributor.authorYin, Jun
dc.contributor.authorShekhah, Osama
dc.contributor.authorBakr, Osman
dc.contributor.authorEddaoudi, Mohamed
dc.contributor.authorMohammed, Omar F.
dc.date.accessioned2021-05-26T07:34:21Z
dc.date.available2021-05-26T07:34:21Z
dc.date.issued2021-05-19
dc.identifier.citationGutiérrez-Arzaluz, L., Jia, J., Gu, C., Czaban-Jóźwiak, J., Yin, J., Shekhah, O., … Mohammed, O. F. (2021). Directional Exciton Migration in Benzoimidazole-Based Metal–Organic Frameworks. The Journal of Physical Chemistry Letters, 4917–4927. doi:10.1021/acs.jpclett.1c01053
dc.identifier.issn1948-7185
dc.identifier.issn1948-7185
dc.identifier.pmid34008983
dc.identifier.doi10.1021/acs.jpclett.1c01053
dc.identifier.urihttp://hdl.handle.net/10754/669251
dc.description.abstractHighly luminescent metal-organic frameworks (MOFs) have recently received great attention due to their potential applications as sensors and light-emitting devices. In these MOFs, the highly ordered fluorescent organic linkers positioning prevents excited-state self-quenching and rotational motion, enhancing their light-harvesting properties. Here, the exciton migration between the organic linkers with the same chemical structure but different protonation degrees in Zr-based MOFs was explored and deciphered using ultrafast laser spectroscopy and density functional theory calculations. First, we clearly demonstrate how hydrogen-bonding interactions between free linkers and solvents affect the twisting changes, internal conversion processes, and luminescent behavior of a benzoimidazole-based linker. Second, we provide clear evidence of an ultrafast energy transfer between well-aligned adjacent linkers with different protonation states inside the MOF. These findings provide a new fundamental photophysical insight into the exciton migration dynamics between linkers with different protonation states coexisting at different locations in MOFs and serve as a benchmark for improving light-harvesting MOF architectures.
dc.description.sponsorshipThe authors thank King Abdullah University of Science and Technology (KAUST) and the CARF-FCC/1/1972-63-01 project for financial support and the Supercomputing Laboratory at KAUST for computational and storage resources.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acs.jpclett.1c01053
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.jpclett.1c01053.
dc.titleDirectional Exciton Migration in Benzoimidazole-Based Metal–Organic Frameworks
dc.typeArticle
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.identifier.journalThe Journal of Physical Chemistry Letters
dc.rights.embargodate2022-05-19
dc.eprint.versionPost-print
dc.contributor.institutionLaboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
dc.identifier.pages4917-4927
kaust.personGutierrez Arzaluz, Luis
kaust.personGutierrez Arzaluz, Luis
kaust.personJia, Jiangtao
kaust.personJia, Jiangtao
kaust.personCzaban-Jozwiak, Justyna
kaust.personCzaban-Jozwiak, Justyna
kaust.personYin, Jun
kaust.personYin, Jun
kaust.personShekhah, Osama
kaust.personShekhah, Osama
kaust.personBakr, Osman M.
kaust.personEddaoudi, Mohamed
kaust.personEddaoudi, Mohamed
kaust.personMohammed, Omar F.
kaust.personMohammed, Omar F.
kaust.grant.numberCARF-FCC/1/1972-63-01
kaust.acknowledged.supportUnitSupercomputing Laboratory at KAUST


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