Evidence map›Paper›PMID 38629638›Full record

ArticleNano letters2024

Engineering Small HOMO-LUMO Gaps in Polycyclic Aromatic Hydrocarbons with Topologically Protected States.

Kaitlin Slicker, Aidan Delgado, Jingwei Jiang, Weichen Tang, Adam Cronin, Raymond E Blackwell, Steven G Louie, Felix R Fischer

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nano letters, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Kaitlin SlickerDepartment of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.
Aidan DelgadoDepartment of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.
Jingwei JiangDepartment of Physics, University of California, Berkeley, Berkeley, California 94720, United States.ORCID 0000-0002-0949-4401
Weichen TangDepartment of Physics, University of California, Berkeley, Berkeley, California 94720, United States.ORCID 0000-0002-1945-5369
Adam CroninDepartment of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.
Raymond E BlackwellDepartment of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.ORCID 0000-0002-3501-9444
Steven G LouieDepartment of Physics, University of California, Berkeley, Berkeley, California 94720, United States.ORCID 0000-0003-0622-0170
Felix R FischerDepartment of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.ORCID 0000-0003-4723-3111

Funding

GPU Computing Cluster for Transformative Public Health driven Molecular ScienceS10OD034382 · OD · UNIVERSITY OF CALIFORNIA BERKELEY · PI DURKIN, KATHLEEN A · 2023 to 2023
$491k
Acquisition of a Cryoprobe and Related Accessories for a 600 MHz NMR Spectrometer to Support Health Research Activities at the University of California, BerkeleyS10OD024998 · OD · UNIVERSITY OF CALIFORNIA BERKELEY · PI HARTWIG, JOHN F · 2018 to 2018
$265k
NIH HHS S10 OD024998NIH HHS S10 OD034382
6 · The paper itself

Abstract

Topological phases in laterally confined low-dimensional nanographenes have emerged as versatile design tools that can imbue otherwise unremarkable materials with exotic band structures ranging from topological semiconductors and quantum dots to intrinsically metallic bands. The periodic boundary conditions that define the topology of a given lattice have thus far prevented the translation of this technology to the quasi-zero-dimensional (0D) domain of small molecular structures. Here, we describe the synthesis of a polycyclic aromatic hydrocarbon (PAH) featuring two localized zero modes (ZMs) formed by the topological junction interface between a trivial and nontrivial phase within a single molecule. First-principles density functional theory calculations predict a strong hybridization between adjacent ZMs that gives rise to an exceptionally small HOMO-LUMO gap. Scanning tunneling microscopy and spectroscopy corroborate the molecular structure of 9/7/9-double quantum dots and reveal an experimental quasiparticle gap of 0.16 eV, corresponding to a carbon-based small molecule long-wavelength infrared (LWIR) absorber.

Indexed as

nanographenepolycyclic aromatic hydrocarbonssmall HOMO−LUMO gapssymmetry protected topological statestopological engineeringzero modes

Identifiers

PMID38629638
PMCPMC11066967

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.