Boosting Field Emission in Black Silicon via Gold Nanoparticle Decoration Guided by High-Fidelity 3D Morphological Simulation.

ABSTRACT: Overcoming the inherent limitations of nanostructured black silicon (BS) for efficient field emission (FE) cathodes remains a significant challenge. Despite its promising nanostructured morphology with sharp, controllable tips amenable to mass production, BS suffers from a high work function (∼4.5 eV), poor electrical conductivity, and inadequate heat dissipation. These material properties lead to high threshold fields, unstable emission, and low current densities. Here, we demonstrate a simple and effective strategy to dramatically enhance the FE performance of BS through surface modification with gold nanoparticles (Au-NP). Critically, we overcome the complexity of simulating highly disordered BS emitters on nonplanar surfaces by developing a high-precision three-dimensional (3D) modelin

SUBMITTER: Li J 

PROVIDER: S-EPMC12616592 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature