000852905 001__ 852905
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000852905 0247_ $$2Handle$$a2128/19762
000852905 0247_ $$2ISSN$$a1866-1807
000852905 020__ $$a978-3-95806-352-5
000852905 037__ $$aFZJ-2018-05692
000852905 041__ $$aEnglish
000852905 1001_ $$0P:(DE-Juel1)159373$$aGreen, Matthew Felix Blishen$$b0$$eCorresponding author$$gmale$$ufzj
000852905 245__ $$aCreating and characterizing a single molecule device for quantitative surface science$$f- 2018-04-02
000852905 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2018
000852905 300__ $$agetr. Zählung
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000852905 3367_ $$0PUB:(DE-HGF)11$$2PUB:(DE-HGF)$$aDissertation / PhD Thesis$$bphd$$mphd$$s1538996106_23477
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000852905 4900_ $$aSchriften des Forschungszentrums Jülich. Reihe Schlüsseltechnologien / Key Technologies$$v181
000852905 502__ $$aRWTH Aachen, Diss., 2018$$bDr.$$cRWTH Aachen$$d2018
000852905 520__ $$aThis thesis has presented the creation and characterization of a single molecule device. A new microscopy method, SQDM, was developed and shown to be capable of measuring local electrostatic potential in a truly quantitative fashion. The nature of the single molecule sensor itself was investigated in-depth and unexpected results were achieved, contradicting the predictions of the highly successful orthodox theory of the Coulomb blockade. The single molecule device was constructed with the use of atomically precise single molecule manipulation detailed in Chap. 2. Approaching the microscope tip towards a single molecule, a covalent bond was formed between the apex atom of the tip and one of the double-bonded corner oxygen atoms of the molecule. This bond was empirically found to be strong enough to remove the molecule not only from its chemisorbed state on the surface, but from its hydrogen-bonded molecular layer. The removals were made possible by the augmentation of the SPM setup with a three-dimensional motion tracking device, which was used to explore custom removal trajectories by selective variation. Since the molecule’s geometry was controlled throughout the manipulation process, it was thereafter possible to re-deposit the molecule to the surface by re-approaching and applying a voltage pulse. Using this protocol, the word ‘JÜLICH’ was patterned into a PTCDA monolayer by removing molecules one by one. The correction of a mistake in the patterning was also demonstrated by lowering a molecule into a previously created vacancy. Currently work is underway to further the understanding of the key parameters involved in successful removal trajectories. Next, the functionality of the single molecule device was exhibited in Chap. 3 with the development of SQDM. It was shown that the molecular QD was sufficiently electronically decoupled from the tip’s electronic states that integer charge could be stabilized on it: the presence of resonant tunnelling features as well as sudden changes in the tip-sample force were the signals of single electron charging. The [...]
000852905 536__ $$0G:(DE-HGF)POF3-142$$a142 - Controlling Spin-Based Phenomena (POF3-142)$$cPOF3-142$$fPOF III$$x0
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000852905 9141_ $$y2018
000852905 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)159373$$aForschungszentrum Jülich$$b0$$kFZJ
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000852905 920__ $$lyes
000852905 9201_ $$0I:(DE-Juel1)PGI-3-20110106$$kPGI-3$$lFunktionale Nanostrukturen an Oberflächen$$x0
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