Organic light-emitting physically unclonable functions

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buir.contributor.authorÖnses, Mustafa Serdar
buir.contributor.orcidÖnses, Mustafa Serdar|0000-0001-6898-7700
dc.citation.epage2108675-11en_US
dc.citation.spage2108675-1en_US
dc.citation.volumeNumberEarly Viewen_US
dc.contributor.authorKayacı, N.
dc.contributor.authorÖzdemir, R.
dc.contributor.authorKalay, M.
dc.contributor.authorKiremitler, N. B.
dc.contributor.authorUsta, H.
dc.contributor.authorÖnses, Mustafa Serdar
dc.date.accessioned2022-01-24T11:44:54Z
dc.date.available2022-01-24T11:44:54Z
dc.date.issued2021-12-22
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThe development of novel physically unclonable functions (PUFs) is of growing interest and fluorescent organic semiconductors (f-OSCs) offer unique advantages of structural versatility, solution-processability, ease of processing, and great tuning ability of their physicochemical/optoelectronic/spectroscopic properties. The design and ambient atmosphere facile fabrication of a unique organic light-emitting physically unclonable function (OLE-PUF) based on a green-emissive fluorescent oligo(p-phenyleneethynylene) molecule is reported. The OLE-PUFs have been prepared by one-step, brief (5 min) thermal annealing of spin-coated nanoscopic films (≈40 nm) at a modest temperature (170 °C), which results in efficient surface dewetting to form randomly positioned/sized hemispherical features with bright fluorescence. The random positioning of molecular domains generated the unclonable surface with excellent uniformity (0.50), uniqueness (0.49), and randomness (p > 0.01); whereas the distinctive photophysical and structural properties of the molecule created the additional security layers (fluorescence profile, excited-state decay dynamics, Raman mapping/spectrum, and infrared spectrum) for multiplex encoding. The OLE-PUFs on substrates of varying chemical structures, surface energies and flexibility, and direct deposition on goods via drop-casting are demonstrated. The OLE-PUFs immersed in water, exposed to mechanical abrasion, and read-out repeatedly via fluorescence imaging showed great stability. These findings clearly demonstrate that rationally engineered solution-processable f-OSCs have a great potential to become a key player in the development of new-generation PUFs.en_US
dc.description.provenanceSubmitted by Samet Emre (samet.emre@bilkent.edu.tr) on 2022-01-24T11:44:54Z No. of bitstreams: 1 Organic_Light-Emitting_Physically_Unclonable_Functions.pdf: 2380373 bytes, checksum: 5aefa53138677f25fbe6910e6d84c18a (MD5)en
dc.description.provenanceMade available in DSpace on 2022-01-24T11:44:54Z (GMT). No. of bitstreams: 1 Organic_Light-Emitting_Physically_Unclonable_Functions.pdf: 2380373 bytes, checksum: 5aefa53138677f25fbe6910e6d84c18a (MD5) Previous issue date: 2021-12-22en
dc.embargo.release2022-12-22
dc.identifier.doi10.1002/adfm.202108675en_US
dc.identifier.issn1616-301X
dc.identifier.urihttp://hdl.handle.net/11693/76765
dc.language.isoEnglishen_US
dc.publisherWiley-VCH Verlag GmbH & Co. KGaAen_US
dc.relation.isversionofhttps://doi.org/10.1002/adfm.202108675en_US
dc.source.titleAdvanced Functional Materialsen_US
dc.subjectData encodingen_US
dc.subjectDewettingen_US
dc.subjectFluorescenceen_US
dc.subjectOrganic semiconductorsen_US
dc.subjectPhysically unclonable functionsen_US
dc.titleOrganic light-emitting physically unclonable functionsen_US
dc.typeArticleen_US

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Institute of Materials Science and Nanotechnology (UNAM)