Year: 2025
Type: article
Abstract: This report is on the field emission properties of WSe 2 nanoflowers synthesized via a solution‐phase colloidal approach, uniformly deposited on Si/SiO 2 substrates. Structural and spectroscopic data confirm the formation of highly crystalline nanoflowers with predominantly 1T′ phase content and minimal surface oxidation. Field emission measurements, performed in vacuum using a nanomanipulated tungsten probe, reveal a low turn‐on voltage and a field enhancement factor ranging from ≈70 at cathode‐anode separation distance of 100 nm, to ≈10 for distance increased to 900 nm, as resulting by the analysis in the framework of the Fowler–Nordheim model. WSe 2 nanoflowers offer competitive performance combined with excellent stability, attributable to their hierarchical architecture and metallic character. These results demonstrate the potential of WSe 2 nanoflowers as efficient cold cathode materials for next‐generation vacuum electronic applications.
Source: Advanced Electronic Materials
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,560
Awards: G434337789, G4372717890
OpenAlex ID: W4415132078