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Abstract
This work describes the design and synthesis of a π-conjugated telluro[3,2-β][1]-tellurophene-based synthon that, embodying pyridyl and haloaryl chalcogen-bonding acceptors, self-assembles into nanoribbons through chalcogen bonds. The ribbons π-stack in a multi-layered architecture both in single crystals and thin films. Theoretical studies of the electronic states of chalcogen-bonded material showed the presence of a local charge density between Te and N atoms. OTFT-based charge transport measurements showed hole-transport properties for this material. Its integration as a p-type semiconductor in multi-layered CuI-based light-emitting electrochemical cells (LECs) led to a 10-fold increase in stability (38 h vs. 3 h) compared to single-layered devices. Finally, using the reference tellurotellurophene congener bearing a C−H group instead of the pyridyl N atom, a herringbone solid-state assembly is formed without charge transport features, resulting in LECs with poor stabilities (<1 h).
Originalsprache | englisch |
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Aufsatznummer | e202202137 |
Fachzeitschrift | Angewandte Chemie - International Edition |
Jahrgang | 61 |
Ausgabenummer | 38 |
DOIs | |
Publikationsstatus | Veröffentlicht - 19 Sept. 2022 |
ASJC Scopus subject areas
- Katalyse
- Allgemeine Chemie
Fields of Expertise
- Advanced Materials Science
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Untersuchen Sie die Forschungsthemen von „Supramolecular Chalcogen-Bonded Semiconducting Nanoribbons at Work in Lighting Devices“. Zusammen bilden sie einen einzigartigen Fingerprint.Projekte
- 1 Laufend
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Strukturcharakterisierung mittels Licht- und Röntgenstreuung
Marmiroli, B., Sartori, B. & Amenitsch, H.
31/07/15 → 31/12/30
Projekt: Arbeitsgebiet