{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["8(3)"],"submitter":["Kim H"],"pubmed_abstract":["Here, we report light emission from single atoms bridging a graphene nanogap that emit bright visible light based on fluorescence of ionized atoms. Oxygen atoms in the gap shows a peak emission wavelength of 569 nm with a full width at half maximum (FWHM) of 208 nm. The energy states produced by these ionized oxygen atoms bridging carbon atoms in the gap also produce a large negative differential resistance (NDR) in the transport across the gap with the highest peak-to-valley current ratio (PVR = 45) and highest peak current density (~90 kA/cm<sup>2</sup>) ever reported in a solid-state tunneling device. While tunneling transport has been previously observed in graphene nanogaps, the bridging of ionized oxygen observed here shows a low excess current, leading to the observed PVR. On the ba"],"journal":["Science advances"],"pagination":["eabj1742"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8782453"],"repository":["biostudies-literature"],"pubmed_title":["Electroluminescence of atoms in a graphene nanogap."],"pmcid":["PMC8782453"],"pubmed_authors":["Hone J","Guo J","Kim H","Herman IP","Kim YD","Shepard KL","Wu T","Cao Q"],"additional_accession":[]},"is_claimable":false,"name":"Electroluminescence of atoms in a graphene nanogap.","description":"Here, we report light emission from single atoms bridging a graphene nanogap that emit bright visible light based on fluorescence of ionized atoms. Oxygen atoms in the gap shows a peak emission wavelength of 569 nm with a full width at half maximum (FWHM) of 208 nm. The energy states produced by these ionized oxygen atoms bridging carbon atoms in the gap also produce a large negative differential resistance (NDR) in the transport across the gap with the highest peak-to-valley current ratio (PVR = 45) and highest peak current density (~90 kA/cm<sup>2</sup>) ever reported in a solid-state tunneling device. While tunneling transport has been previously observed in graphene nanogaps, the bridging of ionized oxygen observed here shows a low excess current, leading to the observed PVR. On the ba","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Jan","modification":"2025-04-19T08:20:08.95Z","creation":"2024-11-12T01:50:40.814Z"},"accession":"S-EPMC8782453","cross_references":{"pubmed":["35061537"],"doi":["10.1126/sciadv.abj1742"]}}