2017
DOI: 10.1039/c6sc05283e
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Tuning the polarity of charge carriers using electron deficient thiophenes

Abstract: Highly electron deficient thiophene building blocks are used to induce LUMO-conducting behaviour from the parent HOMO-conducting pentathiophene in single-molecule junctions.

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Cited by 27 publications
(29 citation statements)
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“…Kim et al [ 43 ] and Yuan et al [ 44 ] have found that the work function of Au is around 4.2 eV (4.0–4.4 eV) upon the adsorbed self-assembled monolayers (SAMs) measured by the ultraviolet photoelectron spectrometer (UPS). Low et al also investigated the electron transport of thiophene-based molecules of TOTOT (LUMO − 3.3 eV, HOMO − 5.2 eV) and TTO p TT (LUMO − 3.6 eV, HOMO − 5.1 eV) with Au as the electrode (T, O, and O p denote thiophene, thiophene-1,1-dioxide, and oxidized thienopyrrolodione, respectively) [ 45 ]. The results show that the Fermi level of Au is in the middle of LUMO and HOMO.…”
Section: Resultsmentioning
confidence: 99%
“…Kim et al [ 43 ] and Yuan et al [ 44 ] have found that the work function of Au is around 4.2 eV (4.0–4.4 eV) upon the adsorbed self-assembled monolayers (SAMs) measured by the ultraviolet photoelectron spectrometer (UPS). Low et al also investigated the electron transport of thiophene-based molecules of TOTOT (LUMO − 3.3 eV, HOMO − 5.2 eV) and TTO p TT (LUMO − 3.6 eV, HOMO − 5.1 eV) with Au as the electrode (T, O, and O p denote thiophene, thiophene-1,1-dioxide, and oxidized thienopyrrolodione, respectively) [ 45 ]. The results show that the Fermi level of Au is in the middle of LUMO and HOMO.…”
Section: Resultsmentioning
confidence: 99%
“…We expect that the search for novel “noncovalent interactional algorithms” will be particularly fruitful in the field of thiophene oligomers, which are very versatile functional materials, fluorescent, and conductive, with astonishing recognition capabilities via nonbonded interactions even inside living cells and organisms . They can physiologically co‐assemble with specific proteins inside live cells[15e] and are p‐type semiconductors but can acquire n‐type charge transport properties by sulfur functionalization with oxygen . Thus, it is probably not too hazardous to believe that the identification of appropriate “noncovalent interactional algorithms” will be beneficial not only to the search of new and more performing materials for organic electronics and optoelectronics but also to the discovery of new properties of thiophene compounds for their application in fields at the frontier of biology, medicine, and supramolecular chemistry.…”
Section: Discussionmentioning
confidence: 99%
“…This barrier height can be modulated by the applied potentials. For example, a positive potential will drive the Fermi level towards the HOMO, facilitating the HOMO-conducting process (i.e., thiol anchored [52] Copyright 2017, The Royal Society of Chemistry. Steady transfer characteristic of the SMECTs based on c) HOMO-conducting molecule and d) LUMO-conducting molecule fit with a single-Lorentzian transmission model (solid lines).…”
Section: Off-resonance Tunneling Smectsmentioning
confidence: 99%