Photothermal effects control ultrafast charge transport in titanium carbide MXenes

Titanium carbide MXene (Ti₃C₂Tₓ) is an emerging metallic material with promise for (opto)electronics and thermal management. Yet how photoexcitation-particularly via photogenerated thermal energy-modifies its charge carrier dynamics remains poorly understood. By combining time-resolved terahertz spe...

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Autores: Zheng, Wenhao, Ramsden, Hugh, Ippolito, Stefano, Hemert, Max van, Zhang, Danzhen, Zhang, Teng, Li, Dongqi, Wen, Guanzhao, Geuchies, Jaco J., Yu, Minghao, Feng, Xinliang, Gogotsi, Yury, Tielrooij, Klaas-Jan, Wang, Hai I.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::88f5e3147df4d514c3c8c56dddfa5aad
Acceso en línea:http://hdl.handle.net/10261/425911
https://api.elsevier.com/content/abstract/scopus_id/105028966931
Access Level:acceso abierto
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dc.title.none.fl_str_mv Photothermal effects control ultrafast charge transport in titanium carbide MXenes
title Photothermal effects control ultrafast charge transport in titanium carbide MXenes
spellingShingle Photothermal effects control ultrafast charge transport in titanium carbide MXenes
Zheng, Wenhao
title_short Photothermal effects control ultrafast charge transport in titanium carbide MXenes
title_full Photothermal effects control ultrafast charge transport in titanium carbide MXenes
title_fullStr Photothermal effects control ultrafast charge transport in titanium carbide MXenes
title_full_unstemmed Photothermal effects control ultrafast charge transport in titanium carbide MXenes
title_sort Photothermal effects control ultrafast charge transport in titanium carbide MXenes
dc.creator.none.fl_str_mv Zheng, Wenhao
Ramsden, Hugh
Ippolito, Stefano
Hemert, Max van
Zhang, Danzhen
Zhang, Teng
Li, Dongqi
Wen, Guanzhao
Geuchies, Jaco J.
Yu, Minghao
Feng, Xinliang
Gogotsi, Yury
Tielrooij, Klaas-Jan
Wang, Hai I.
author Zheng, Wenhao
author_facet Zheng, Wenhao
Ramsden, Hugh
Ippolito, Stefano
Hemert, Max van
Zhang, Danzhen
Zhang, Teng
Li, Dongqi
Wen, Guanzhao
Geuchies, Jaco J.
Yu, Minghao
Feng, Xinliang
Gogotsi, Yury
Tielrooij, Klaas-Jan
Wang, Hai I.
author_role author
author2 Ramsden, Hugh
Ippolito, Stefano
Hemert, Max van
Zhang, Danzhen
Zhang, Teng
Li, Dongqi
Wen, Guanzhao
Geuchies, Jaco J.
Yu, Minghao
Feng, Xinliang
Gogotsi, Yury
Tielrooij, Klaas-Jan
Wang, Hai I.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv German Research Foundation
Alexander von Humboldt Foundation
China Scholarship Council
Utrecht University
Max Planck Society
Generalitat de Catalunya
Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
European Commission
Ministerio de Ciencia e Innovación (España)
European Research Council
Zheng, Wenhao [0000-0002-0090-614X]
Ippolito, Stefano [0000-0002-6906-3961]
Zhang, Danzhen [0000-0002-0005-2674]
Feng, Xinliang [0000-0003-3885-2703]
Tielrooij, Klaas-Jan [0000-0002-0055-6231]
Wang, Hai I. [0000-0003-0940-3984]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Titanium carbide MXene (Ti₃C₂Tₓ) is an emerging metallic material with promise for (opto)electronics and thermal management. Yet how photoexcitation-particularly via photogenerated thermal energy-modifies its charge carrier dynamics remains poorly understood. By combining time-resolved terahertz spectroscopy and transient reflectance measurements, we reveal a long-lived, photo-induced suppression of conductivity, which we attribute to efficient lattice heating and slow heat dissipation in Ti₃C₂Tx. A systematic variation of pump photon energy reveals that this 'negative' photoconductivity can equivalently be induced by lattice temperature increases, indicating a thermal origin. Repetition-rate-dependent transient reflectance measurements further show residual heat persisting over 100 ns, substantially longer than in conventional metals. Our work presents a unified understanding of photothermal effects in Ti₃C₂Tₓ and their influence on non-equilibrium charge transport, underscoring its potential for photothermal electronics and light-to-thermal energy storage applications.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
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info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/425911
https://api.elsevier.com/content/abstract/scopus_id/105028966931
url http://hdl.handle.net/10261/425911
https://api.elsevier.com/content/abstract/scopus_id/105028966931
dc.language.none.fl_str_mv Inglés
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2021-001214-S
info:eu-repo/grantAgreement/EC/HE/101125457
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-142730NB-I00
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1038/s41467-026-68831-4
Zheng, Wenhao; Ramsden, Hugh; Ippolito, Stefano; Hemert, Max van; Zhang, Danzhen; Zhang, Teng; Li, Dongqi; Wen, Guanzhao; Geuchies, Jaco J.; Yu, Minghao; Feng, Xinliang; Gogotsi, Yury; Tielrooij, Klaas-Jan; Wang, Hai I.; 2026; Supplementary Information for: Photothermal effects control ultrafast charge transport in titanium carbide MXenes; Springer Nature; https://doi.org/10.1038/s41467-026-68831-4
https://doi.org/10.1038/s41467-026-68831-4
Sí
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
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instname_str Consejo Superior de Investigaciones Científicas (CSIC)
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spelling Photothermal effects control ultrafast charge transport in titanium carbide MXenesZheng, WenhaoRamsden, HughIppolito, StefanoHemert, Max vanZhang, DanzhenZhang, TengLi, DongqiWen, GuanzhaoGeuchies, Jaco J.Yu, MinghaoFeng, XinliangGogotsi, YuryTielrooij, Klaas-JanWang, Hai I.Titanium carbide MXene (Ti₃C₂Tₓ) is an emerging metallic material with promise for (opto)electronics and thermal management. Yet how photoexcitation-particularly via photogenerated thermal energy-modifies its charge carrier dynamics remains poorly understood. By combining time-resolved terahertz spectroscopy and transient reflectance measurements, we reveal a long-lived, photo-induced suppression of conductivity, which we attribute to efficient lattice heating and slow heat dissipation in Ti₃C₂Tx. A systematic variation of pump photon energy reveals that this 'negative' photoconductivity can equivalently be induced by lattice temperature increases, indicating a thermal origin. Repetition-rate-dependent transient reflectance measurements further show residual heat persisting over 100 ns, substantially longer than in conventional metals. Our work presents a unified understanding of photothermal effects in Ti₃C₂Tₓ and their influence on non-equilibrium charge transport, underscoring its potential for photothermal electronics and light-to-thermal energy storage applications.Open Access funding enabled and organized by Projekt DEAL.W.Z. acknowledges support from the German Research Foundation through a Walter Benjamin fellowship (grant no. Z.H. 1262/1-1). J.J.G. gratefully acknowledges financial support from the Alexander von Humboldt Foundation. G.W. acknowledges the fellowship support from the China Scholarship Council (CSC). H.I.W. acknowledges funding support from Utrecht University. W.Z., J.J.G., G.W., and H.I.W. acknowledge funding support from the Max Planck Society. We gratefully acknowledge Mischa Bonn and all members of the THz group in the Department of Molecular Spectroscopy at MPIP for insightful discussions. We also thank Zihui Lu (GBA Branch of the Aerospace Information Research Institute, Chinese Academy of Sciences) and Ioannis Georgoulis (Utrecht University) for valuable discussions. The ICN2 is funded by the CERCA programme / Generalitat de Catalunya. The ICN2 is supported by the Severo Ochoa Centres of Excellence programme, Grant CEX2021-001214-S, funded by MCIU/AEI/10.13039.501100011033. K.J.T. acknowledges funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 101125457 (ERC CoG “EQUATE”) and Spanish MCIN/AEI project PID2022-142730NB-I00 “HYDROPTO”).With funding from the Spanish government through the "Severo Ochoa Centre of Excelence" accreditation (CEX2021-001214-S)Peer reviewedSpringer NatureGerman Research FoundationAlexander von Humboldt FoundationChina Scholarship CouncilUtrecht UniversityMax Planck SocietyGeneralitat de CatalunyaMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)European CommissionMinisterio de Ciencia e Innovación (España)European Research CouncilZheng, Wenhao [0000-0002-0090-614X]Ippolito, Stefano [0000-0002-6906-3961]Zhang, Danzhen [0000-0002-0005-2674]Feng, Xinliang [0000-0003-3885-2703]Tielrooij, Klaas-Jan [0000-0002-0055-6231]Wang, Hai I. [0000-0003-0940-3984]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262026info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/425911https://api.elsevier.com/content/abstract/scopus_id/105028966931reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2021-001214-Sinfo:eu-repo/grantAgreement/EC/HE/101125457info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-142730NB-I00The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1038/s41467-026-68831-4Zheng, Wenhao; Ramsden, Hugh; Ippolito, Stefano; Hemert, Max van; Zhang, Danzhen; Zhang, Teng; Li, Dongqi; Wen, Guanzhao; Geuchies, Jaco J.; Yu, Minghao; Feng, Xinliang; Gogotsi, Yury; Tielrooij, Klaas-Jan; Wang, Hai I.; 2026; Supplementary Information for: Photothermal effects control ultrafast charge transport in titanium carbide MXenes; Springer Nature; https://doi.org/10.1038/s41467-026-68831-4https://doi.org/10.1038/s41467-026-68831-4Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::88f5e3147df4d514c3c8c56dddfa5aad2026-05-22T06:33:51Z
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