Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The electronic structure defines the properties of graphene-based nanomaterials. Scanning tunneling microscopy/spectroscopy (STM/STS) experiments on graphene nanoribbons (GNRs), nanographenes, and nanoporous graphene (NPG) often determine an apparent electronic orbital confinement into the edges and nanopores, leading to dubious interpretations such as image potential states or super-atom molecular orbitals. We show that these measurements are subject to a wave function decay into the vacuum that masks the undisturbed electronic orbital shape. We use Au(111)-supported semiconducting gulf-type GNRs and NPGs as model systems fostering frontier orbitals that appear confined along the edges and nanopores in STS measurements. DFT calculations confirm that these states originate from valence and conduction bands. The deceptive electronic orbital confinement observed is caused by a loss of Fourier components, corresponding to states of high momentum. This effect can be generalized to other 1D and 2D carbon-based nanoarchitectures and is important for their use in catalysis and sensing applications.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10844643 | PMC |
| http://dx.doi.org/10.1038/s41467-024-45138-w | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Cascaded metasurface for polarization-dependent varifocal vortex beam manipulation.
Nanophotonics
August 2025
Key Laboratory of Opto-Electronics Information Technology (Tianjin University), Ministry of Education, School of Precision Instruments and Opto-Electronics Engineering, Tianjin, 300072, China.
Vortex beams, characterized by orbital angular momentum (OAM), hold significant potential in optical communications, quantum information processing, and optical manipulation. However, existing metasurface designs are largely confined to single-degree-of-freedom control, such as static OAM generation or fixed focal points, which limiting their ability to integrate polarization multiplexing with dynamic focal tuning. To address this challenge, we propose a tunable multifunctional cascaded metasurface that synergizes polarization-sensitive phase engineering with interlayer rotational coupling, overcoming conventional device limitations.
View Article and Find Full Text PDFTailor-Made Host-Guest Organic-Inorganic Hybrid Antimony Halide Enables Efficient Light-Emitting Diodes.
Angew Chem Int Ed Engl
August 2025
Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, China.
Organic-inorganic antimony (Sb) halides are garnering increasing interest for lead-free perovskite light-emitting diodes (LEDs), but the non-radiative recombination and poor charge transport are hard-treat case to restrict their electroluminescent performance. Here we developed efficient Sb halide LEDs based on the tailor-made host-guest (PhP)SbCl (PhP = tetraphenylphosphonium) emitters that enable good luminescence and charge transport properties simultaneously. Experimental and theoretical studies reveal that the self-trapped excitons triggered by excited-state structural deformation were localized in spatial-confined [SbCl] polyhedrons, generating a high photoluminescence quantum yield (96.
View Article and Find Full Text PDFRobotic-Assisted Minimally Invasive Cranial Neurosurgery: Surgical Applications and Anatomy - A Systematic Review.
World Neurosurg
August 2025
Cellular Signaling Laboratory, Anatomy Center, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy.
Background: The adoption of robotic systems in cranial neurosurgery remains limited, with most applications confined to stereotactic procedures. However, recent advancements in robotic engineering and the rise of minimally invasive neurosurgery have renewed interest in their transcranial and skull base applications. This systematic review analyzes current uses, technical limitations, and translational potential of robotic-assisted cranial neurosurgery.
View Article and Find Full Text PDFPersistent Spin Grids with a Spin-Orbit-Coupled 2D Electron Gas.
Phys Rev Lett
August 2025
ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain.
We consider the diffusive spin dynamics of a 2D electron gas with spin-orbit coupling confined within a grid of narrow channels. We show that the lifetime of certain spin distributions in such grids greatly exceeds that in an unconfined 2D electron gas and diverges as the channel width approaches zero. Such persistent spin grids are akin to spin crystals and occur if the electron spin orientation remains invariant after diffusion around the grid plaquette.
View Article and Find Full Text PDFMolecular Engineering of Interlayer Exciton Delocalization in 2D Perovskites.
J Am Chem Soc
September 2025
Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, U.K.
In recent years, significant progress has been made in improving the stability, photocurrent efficiency and charge transport properties of 2D hybrid perovskites, making them increasingly relevant for optoelectronic devices. Although these layered systems are typically considered quantum wells due to carrier confinement, an emerging strategy is to generate new perovskite functionalities with π-conjugated electroactive cores as spacer molecules, which introduce electronic coupling between the inorganic metal-halide and organic sublattices. Realizing these functionalities requires an understanding of how this coupling is achieved and how it affects exciton behavior.
View Article and Find Full Text PDF