The impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclusters

Handle URI:
http://hdl.handle.net/10754/622849
Title:
The impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclusters
Authors:
Almansaf, Abdulkhaleq A.; Parida, Manas R.; Besong, Tabot M.D. ( 0000-0002-3572-1428 ) ; Maity, Partha; Bootharaju, Megalamane Siddaramappa ( 0000-0002-8276-6987 ) ; Bakr, Osman M. ( 0000-0002-3428-1002 ) ; Mohammed, Omar F. ( 0000-0001-8500-1130 )
Abstract:
We explore the impact of Au doping on the charge transfer dynamics between the positively charged porphyrin (TMPyP) and negatively charged silver nanoclusters (Ag29 NCs). Our transient absorption (TA) spectroscopic results demonstrate that the interfacial charge transfer, the intersystem crossing and the triplet state lifetime of porphyrin can be tuned by the doping of Au atoms in Ag29 NCs. Additionally, we found that the electrostatic interaction between the negative charge of the cluster and the positive charge on the TMPyP is the driving force that brings them close to each other for complex formation and subsequently facilitates the transfer process.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Almansaf AA, Parida MR, Besong TMD, Maity P, Bootharaju MS, et al. (2017) The impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclusters. Chemical Physics Letters. Available: http://dx.doi.org/10.1016/j.cplett.2017.01.075.
Publisher:
Elsevier BV
Journal:
Chemical Physics Letters
Issue Date:
4-Feb-2017
DOI:
10.1016/j.cplett.2017.01.075
Type:
Article
ISSN:
0009-2614
Sponsors:
This work was supported by King Abdullah University of Science and Technology (KAUST). Additionally, part of this work was supported by Saudi Arabia Basic Industries Corporation (SABIC) grant RGC/3/2470-01.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S000926141730091X
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAlmansaf, Abdulkhaleq A.en
dc.contributor.authorParida, Manas R.en
dc.contributor.authorBesong, Tabot M.D.en
dc.contributor.authorMaity, Parthaen
dc.contributor.authorBootharaju, Megalamane Siddaramappaen
dc.contributor.authorBakr, Osman M.en
dc.contributor.authorMohammed, Omar F.en
dc.date.accessioned2017-02-07T08:28:38Z-
dc.date.available2017-02-07T08:28:38Z-
dc.date.issued2017-02-04en
dc.identifier.citationAlmansaf AA, Parida MR, Besong TMD, Maity P, Bootharaju MS, et al. (2017) The impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclusters. Chemical Physics Letters. Available: http://dx.doi.org/10.1016/j.cplett.2017.01.075.en
dc.identifier.issn0009-2614en
dc.identifier.doi10.1016/j.cplett.2017.01.075en
dc.identifier.urihttp://hdl.handle.net/10754/622849-
dc.description.abstractWe explore the impact of Au doping on the charge transfer dynamics between the positively charged porphyrin (TMPyP) and negatively charged silver nanoclusters (Ag29 NCs). Our transient absorption (TA) spectroscopic results demonstrate that the interfacial charge transfer, the intersystem crossing and the triplet state lifetime of porphyrin can be tuned by the doping of Au atoms in Ag29 NCs. Additionally, we found that the electrostatic interaction between the negative charge of the cluster and the positive charge on the TMPyP is the driving force that brings them close to each other for complex formation and subsequently facilitates the transfer process.en
dc.description.sponsorshipThis work was supported by King Abdullah University of Science and Technology (KAUST). Additionally, part of this work was supported by Saudi Arabia Basic Industries Corporation (SABIC) grant RGC/3/2470-01.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S000926141730091Xen
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Chemical Physics Letters. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chemical Physics Letters, 4 February 2017. DOI: 10.1016/j.cplett.2017.01.075en
dc.subjectInterfacial charge transferen
dc.subjectNanoclustersen
dc.subjectIntersystem crossingen
dc.subjectTriplet stateen
dc.subjectMetal ion dopingen
dc.titleThe impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclustersen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalChemical Physics Lettersen
dc.eprint.versionPost-printen
kaust.authorAlmansaf, Abdulkhaleq A.en
kaust.authorParida, Manas R.en
kaust.authorBesong, Tabot M.D.en
kaust.authorMaity, Parthaen
kaust.authorBootharaju, Megalamane Siddaramappaen
kaust.authorBakr, Osman M.en
kaust.authorMohammed, Omar F.en
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