dc.contributor.author
Bayliss, Samuel Luke
dc.contributor.author
Kraffert, Felix
dc.contributor.author
Wang, Rui
dc.contributor.author
Zhang, Chunfeng
dc.contributor.author
Bittl, Robert
dc.contributor.author
Behrends, Jan
dc.date.accessioned
2021-09-21T10:49:45Z
dc.date.available
2021-09-21T10:49:45Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/30074
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-29816
dc.description.abstract
Tetracene is an archetypal material undergoing singlet fission—the generation of a pair of triplet excitons from one singlet exciton. Here, using time-resolved electron spin resonance, we show how the spin dynamics in tetracene crystals are influenced by temperature and morphology. Upon cooling from 300 to 200 K, we observe a switch between singlet fission and intersystem crossing generated triplets, manifesting as an inversion in transient spin polarization. We extract a spin dephasing time of approximately 40 ns for fission-generated triplets at room temperature, nearly 100 times shorter than the dephasing time that we measure for triplets localized on isolated tetracene molecules. These results highlight the importance of morphology and thermal activation in singlet fission systems.
en
dc.format.extent
6 Seiten (Manuskriptversion)
dc.rights.uri
http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen
dc.subject
Nuclear fission
en
dc.subject
Crystal structure
en
dc.subject
Electron paramagnetic resonance spectroscopy
en
dc.subject
Quantum mechanics
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::539 Moderne Physik
dc.title
Tuning spin dynamics in crystalline tetracene
dc.type
Wissenschaftlicher Artikel
dc.identifier.sepid
73841
dcterms.bibliographicCitation.doi
10.1021/acs.jpclett.9b00356
dcterms.bibliographicCitation.journaltitle
The journal of physical chemistry letters
dcterms.bibliographicCitation.number
8
dcterms.bibliographicCitation.originalpublisherplace
Washington, DC
dcterms.bibliographicCitation.pagestart
1908
dcterms.bibliographicCitation.pageend
1913
dcterms.bibliographicCitation.volume
10
dcterms.bibliographicCitation.url
https://pubs.acs.org/doi/10.1021/acs.jpclett.9b00356
dcterms.rightsHolder.url
https://publish.acs.org/publish/author_guidelines?coden=jpclcd#prior_publication_policy
refubium.affiliation
Physik
refubium.affiliation.other
Institut für Experimentalphysik
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refubium.note.author
Bei der PDF-Datei handelt es sich um eine Manuskriptversion des Artikels.
de
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
1948-7185