000892840 001__ 892840
000892840 005__ 20220930130318.0
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000892840 0247_ $$2URN$$aurn:nbn:de:0001-2022020816
000892840 020__ $$a978-3-95806-595-6
000892840 037__ $$aFZJ-2021-02379
000892840 1001_ $$0P:(DE-Juel1)172013$$aLenyk, Bohdan$$b0$$eCorresponding author
000892840 245__ $$aSurface plasmon-enhanced molecular switching for optoelectronic applications$$f2017-02-14 - 2021-03-31
000892840 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag Jülich$$c2021
000892840 300__ $$ax, 129
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000892840 3367_ $$0PUB:(DE-HGF)11$$2PUB:(DE-HGF)$$aDissertation / PhD Thesis$$bphd$$mphd$$s1643099295_11645
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000892840 4900_ $$aSchriften des Forschungszentrums Jülich Reihe Information / Information$$v77
000892840 502__ $$aDissertation, Universität zu Konstanz, 2021$$bDissertation$$cUniversität zu Konstanz$$d2021
000892840 520__ $$aMolecular electronics aims at gaining control over the operation of macroscopic devicesby employing molecules as building blocks. To fulfill the spectrum of functions, varioustypes of molecules are designed including photochromic molecules. Diarylethenes are anexample of the latter one and are discussed as potential optoelectronic switches, which canreversibly transition between two forms with different electrical conductance and opticalabsorbance. By exposure to UV light, the overall electronic structure alters from nonconjugation(open) to end-to-end conjugation (closed) forms, while visible light reversesthe process.These features enable to intensively employ diarylethenes in a single-molecule junctionupscaling their usage to large-area ensemble contacts. However, in general, the transitionbetween closed and open states (opening) exhibits a lower quantum yield compared tothe reverse UV-activated process of closing. These unequal switching rates can be problematicfor optoelectronic molecular contacts relying on reversible switching. Thereby, inthis work, the novel strategy is proposed to use surface plasmon-enhanced electromagneticfields to accelerate the visible-light-mediated cycloreversion reaction. To implementthis concept into large-area molecular contacts with vertical geometry, a plasmonic fieldenhancement of gold films perforated with nanoholes was employed.The surface plasmon resonance properties of nanohole arrays fabricated by nanospherelithography are systematically studied as a function of the geometrical features such aslattice constant, thickness, and hole diameter. Moreover, nanohole arrays are testedin different media, e.g. aqueous solution, revealing a novel phenomenon of enhancedtransmission in the visible range, which can be applied not only for enhancing visible-lighttriggeredchemical reactions but for other applications like biosensing, live-cell imaging,etc.
000892840 536__ $$0G:(DE-HGF)POF4-524$$a524 - Molecular and Cellular Information Processing (POF4-524)$$cPOF4-524$$fPOF IV$$x0
000892840 8564_ $$uhttps://juser.fz-juelich.de/record/892840/files/Information_77.pdf$$yOpenAccess
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000892840 9141_ $$y2021
000892840 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)172013$$aForschungszentrum Jülich$$b0$$kFZJ
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000892840 9130_ $$0G:(DE-HGF)POF3-523$$1G:(DE-HGF)POF3-520$$2G:(DE-HGF)POF3-500$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bKey Technologies$$lFuture Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)$$vControlling Configuration-Based Phenomena$$x0
000892840 920__ $$lyes
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