Thermoplasmonic Response of Non‐Noble Metal Core–Shell Nanostructures for Solar Energy Harvesting
Year: 2026
Type: article
Abstract: ABSTRACT Core–Shell plasmonic nanostructures are drawing significant interest for its multifunctionality in light‐harvesting; however, the mechanisms of the structure–performance relationship of non‐noble metal materials are not yet fully elucidated. Here, finite element method (FEM) is employed to simulate the thermoplasmonic performance of X@Fe 2 O 3 (X = Bi, Ni, Co, Al) core–shell nanoparticles and analyze the influence of interparticle spacing and shell thickness on thermoplasmonic behavior with different structures. With Fe 2 O 3 shell, monomers exhibit strong plasmonic features within visible regions and resonances peak redshift as shell thickness increases, and certain shell thickness can enhance the intensity of the resonances peak. Longitudinally polarized dimers exhibit strong interparticle coupling, resulting in pronounced field‐heat hotspot alignment that promotes efficient light‐to‐heat conversion. Conversely, transverse polarization causes spatial decoupling between electromagnetic and thermal responses. The simulation results indicate that for 100 nm nanoparticles, maximum absorption efficiency does not always correspond to peak temperature response, underscoring the need to consider both spectral and spatial factors in thermoplasmonic design. This study provides important insight into the potential of non‐noble metal‐based core–shell nanostructures for solar energy harvesting.
Source: Carbon Neutralization
DOI: 10.1002/cnl2.70124
Authors: Jiarong Lv, Xiaofeng Kang, Feng Wang, Shengjie Bai, Shaohua Shen, Ya Liu
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
Award: G6830674331
OpenAlex ID: W7128951946