Building entire multiple-component devices on single nanowires is a promising strategy for miniaturizing electronic applications. Here we demonstrate a single nanowire capacitor with a coaxial asymmetric Cu-Cu(2)O-C structure, fabricated using a two-step chemical reaction and vapour deposition method. The capacitance measured from a single nanowire device corresponds to ~140 μF cm(-2), exceeding previous reported values for metal-insulator-metal micro-capacitors and is more than one order of magnitude higher than what is predicted by classical electrostatics. Quantum mechanical calculations indicate that this unusually high capacitance may be attributed to a negative quantum capacitance of the dielectric-metal interface, enhanced significantly at the nanoscale.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1038/ncomms1833 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Modulating the Oxygen Evolution Reaction of Single-Crystal Cobalt Carbonate Hydroxide via Surface Fe Doping and Facet Dependence.
J Phys Chem Lett
January 2025
Graphene Composite Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, P. R. China.
The oxygen evolution reaction (OER) is a critical half-reaction in water splitting and metal-air cells. The sensitivity of the OER to the composition and structure of the electrocatalyst presents a significant challenge in elucidating the structure-property relationship. In this study, highly stable single-crystal cobalt carbonate hydroxide [Co(OH)CO, CoCH] was used as a model to investigate the correlations among structure, composition, and reactivity.
View Article and Find Full Text PDFLong-Distance Electron Transport in Unicellular Organisms and Biofilms.
Rev Physiol Biochem Pharmacol
January 2025
Institute of Medical Sciences, University of Aberdeen, Aberdeen, Scotland, UK.
Electrical forces are widespread in single-celled organisms and underpin sophisticated communication systems. Bacterial biofilm colonies, for example, attract new members electrically. Bacteria also join together end to end and engage in long-distance electron transport along bacterial filaments over centimetres.
View Article and Find Full Text PDFBoosting peroxymonosulfate activation for complete removal of gatifloxacin by a bead-chain zeolitic imidazolate framework composite.
J Colloid Interface Sci
January 2025
College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637000, PR China. Electronic address:
A bead-chain metal-organic framework composite was designed and synthesized by assembling a zeolitic imidazolate framework (ZIF) onto manganese dioxide (MnO) nanowires. The prepared catalyst MnO@ZIF-X (X = 1, 2 and 3) was used to facilitate gatifloxacin (GAT) degradation by using potassium peroxymonopulfate (PMS) as an activator. MnO@ZIF-2 exhibited excellent catalytic performance, achieving 100 % degradation of GAT (10 mg/L) in the presence of PMS (1 mM) in 15 min, and the toxicity of the majority of degradation intermediates decreased.
View Article and Find Full Text PDFOptimizing the growth conditions of superconducting MoSi thin films for single photon detection.
Sci Rep
January 2025
Walter Schottky Institute, Technical University of Munich, 85748, Garching, Germany.
We investigate the growth of amorphous MoSi thin films using magnetron co-sputtering and optimize the growth conditions with respect to crystal structure and superconducting properties (e.g., critical temperature [Formula: see text]).
View Article and Find Full Text PDFSub-millikelvin-resolved superconducting nanowire single-photon detector operates with sub-pW infrared radiation power.
Natl Sci Rev
January 2025
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210023, China.
The noise equivalent temperature difference (NETD) indicates the minimum temperature difference resolvable by using an infrared detector. The lower the NETD, the better the sensor can register small temperature differences. In this work, we proposed a strategy to achieve a high temperature resolution using a superconducting nanowire single-photon detector (SNSPD) with ultra-high sensitivity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!