Boosting Field Emission in Black Silicon via Gold Nanoparticle Decoration Guided by High-Fidelity 3D Morphological Simulation
Jia Li, Yuanpeng Zhang, Hui Wang, Zhengqin Zhao, Xinyi Liang, Dong Wang, Peter Schaaf, YongLiang Tang, Che Xu
TL;DR
This paper presents a method to improve the field emission performance of black silicon by decorating it with gold nanoparticles, guided by high-fidelity 3D simulations.
Contribution
A high-precision 3D modeling approach for simulating disordered black silicon emitters and optimizing gold nanoparticle decoration for enhanced field emission.
Findings
Gold nanoparticle-decorated black silicon achieved an emission current density of up to 4.01 mA/cm².
The 3D simulation model closely matched experimental field emission measurements, validating its accuracy.
The method provides a practical route for optimizing field emission properties of complex nanostructures.
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) modeling approach based on parametrized scanning electron microscope (SEM) images. This model accurately…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsSilicon Nanostructures and Photoluminescence · Carbon Nanotubes in Composites · Nanowire Synthesis and Applications