Multifunctional Bi 2 Se 3 ceramic nanosheets compatible variable capacitor and tunable EMI shielding
Year: 2025
Type: article
Abstract: The growing complexity of artificial intelligence-driven devices requires multifunctional materials that exhibit nonlinear responses to address key challenges in adaptive signal processing and energy-efficient computing. To meet these demands, hexagonal Bi2Se3 ceramic is synthesized with controlled thicknesses via a chemical reduction synthesis method. The aggregated Bi2Se3 nanosheets exhibit remarkable capacitance tunability under an applied bias voltage. Moreover, a significant enhancement in electromagnetic interference shielding performance was achieved under bias voltage, primarily attributed to improved electrical conductivity. At a bias voltage of 15 V and an optical power density of 200 mW·cm-2, the average SET of Bi2Se3 nanosheets increases to 62.8 dB from 23.9 dB. The collaborative combination of multiple superior functionalities within a single material platform with tunable capacitance, dynamically tunable EMI shielding and excellent light response endows Bi2Se3 nanosheets with great potential for applications in intelligent storage, microelectronics and low-light photodetectors.
Source: Journal of Advanced Ceramics
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,372
OpenAlex ID: W4416200488