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Hexagonal Hybrid Bismuthene by Molecular Interface Engineering

Dolle, Christian 1; Oestreicher, Víctor; Ruiz, Alberto M.; Kohring, Malte; Garnes-Portolés, Francisco; Wu, Mingjian; Sánchez-Santolino, Gabriel; Seijas-Da Silva, Alvaro; Alcaraz, Marta; Eggeler, Yolita M. ORCID iD icon 1; Spiecker, Erdmann; Canet-Ferrer, Josep; Leyva-Pérez, Antonio; Weber, Heiko B.; Varela, María; Baldoví, José J.; Abellán, Gonzalo
1 Laboratorium für Elektronenmikroskopie (LEM), Karlsruher Institut für Technologie (KIT)


High-quality devices based on layered heterostructures are typically built from materials obtained by complex solid-state physical approaches or laborious mechanical exfoliation and transfer. Meanwhile, wet-chemically synthesized materials commonly suffer from surface residuals and intrinsic defects. Here, we synthesize using an unprecedented colloidal photocatalyzed, one-pot redox reaction a few-layers bismuth hybrid of “electronic grade” structural quality. Intriguingly, the material presents a sulfur-alkyl-functionalized reconstructed surface that prevents it from oxidation and leads to a tuned electronic structure that results from the altered arrangement of the surface. The metallic behavior of the hybrid is supported by ab initio predictions and room temperature transport measurements of individual nanoflakes. Our findings indicate how surface reconstructions in two-dimensional (2D) systems can promote unexpected properties that can pave the way to new functionalities and devices. Moreover, this scalable synthetic process opens new avenues for applications in plasmonics or electronic (and spintronic) device fabrication. Beyond electronics, this 2D hybrid material may be of interest in organic catalysis, biomedicine, or energy storage and conversion.

Verlagsausgabe §
DOI: 10.5445/IR/1000160128
Veröffentlicht am 04.07.2023
DOI: 10.1021/jacs.2c13036
Zitationen: 2
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Laboratorium für Elektronenmikroskopie (LEM)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 14.06.2023
Sprache Englisch
Identifikator ISSN: 0002-7863, 1520-5126
KITopen-ID: 1000160128
Erschienen in Journal of the American Chemical Society
Verlag American Chemical Society (ACS)
Band 145
Heft 23
Seiten 12487–12498
Vorab online veröffentlicht am 01.06.2023
Nachgewiesen in Scopus
Web of Science
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