Transition metal dichalcogenide micromotors with programmable photophoretic swarming motion
Authors
Asunción Nadal, Víctor de la; Rojas Tizón, José Daniel; Jurado Sánchez, Beatriz; Escarpa Miguel, Jesús AlbertoIdentifiers
Permanent link (URI): http://hdl.handle.net/10017/59176DOI: https://doi.org/10.1039/D2TA07792B
ISSN: 2050-7488
Date
2022-12-02Affiliation
Universidad de Alcalá. Departamento de Química Analítica, Química Física e Ingeniería QuímicaFunders
Ministerio de Economía, Industria y Competitividad
Ministerio de Ciencia e Innovación
European Commission
Comunidad de Madrid
Bibliographic citation
Journal of materials chemistry. A: Materials for energy and sustainability, 2022, v. 11, n. 3 , p. 1239-1245
Project
info:eu-repo/grantAgreement/MINECO//RYC‐2015‐1755/ES/
info:eu-repo/grantAgreement/EC//PID2020‐118154GB‐I00/EU/
info:eu-repo/grantAgreement/MCIN//TED2021‐
132720B‐I00/ES/
info:eu-repo/grantAgreement/MCIN//10.13039%2F501100011033/ES/
info:eu-repo/grantAgreement/CAM//JIN%2F2021‐012/ES/TRANSNANOAVANSENS
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/aceptedVersion
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
© Royal Society of Chemistry
Access rights
info:eu-repo/semantics/openAccess
Abstract
Herein we report the light-triggered photophoretic motion of WS2 micromotors. The micromotors are prepared by liquid-phase exfoliation of pristine WS2 in water, resulting in a layered material with high photoconversion capability. Under electromagnetic irradiation in the UV or VIS range, the micromotors exhibit a positive photophoretic motion and swarming-like schooling behavior. The light-induced heating of the prepared micromotors is studied and computational fluid dynamics simulations are considered to characterize the photophoretic propulsion mechanism. The novel micromotors described here are capable of performing a collective motion without the need for surfactants, fuels, or other reagents, reaching velocities of up to 6000 mu m s(-1). To date, this represents the fastest light-driven micromotor platform, paving the way for novel cutting-edge applications.
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