MXene nanosheet/organics superlattice for flexible thermoelectrics

Show simple item record Wang, Zhiwen Chen, Mengran Cao, Zhining Liang, Jia Liu, Zhenguo Xuan, Yuxue Pan, Lin Razeeb, Kafil M. Wang, Yifeng Wan, Chunlei Zong, Peng-an 2022-11-24T13:42:45Z 2022-11-24T13:42:45Z 2022-11-01
dc.identifier.citation Wang, Z., Chen, M., Cao, Z., Liang, J., Liu, Z., Xuan, Y., Pan, L., Razeeb, K. M., Wang, Y., Wan, C. and Zong, P. (2022) 'MXene nanosheet/organics superlattice for flexible thermoelectrics', ACS Applied Nano Materials. doi: 10.1021/acsanm.2c03813 en
dc.identifier.doi 10.1021/acsanm.2c03813 en
dc.description.abstract Two-dimensional (2D) materials with outstanding electronic transport properties are rigid against bending because of strong in-plane covalent bonding and intrinsically flexible because of the lack of out-of-plane constraint and thus are considered to be promising for flexible thermoelectrics (TEs). As a typical 2D material, MXene, however, exhibited a restricted TE performance because the termination groups and guest molecules in MXene nanosheets introduced by acid etching and reassembly deteriorate intra/interflake conduction. This work realized increases in both the carrier concentration and intra/interflake mobility by the construction of a MXene nanosheet/organic superlattice (SL) and composition engineering, attributed to electron injection, intercoupling strengthening, and defect reduction at the nanosheet edges. An electrical conductivity increased by 5 times, to 2.7 × 105 S m–1, led to power factors of up to ∼33 μW m–1 K–2, which is above the state-of-the-art for similar materials, almost by a factor of 10. A TE module comprising four SL film legs could yield 58.6 nW power at a temperature gradient of 50 K. Additionally, both the annealed film and the corresponding module exhibited excellent reproducibility and stability. Our results provide a strategy to tailor the TE performance of 2D-material films through SL construction and composition engineering. en
dc.description.sponsorship Natural Science Foundation of Jiangsu Province (Grant BK20211264; Natural Science Fund for Colleges and Universities in Jiangsu Province Grant 21KJB430023); National Natural Science Foundation of China (Grant 51702183); State Key Laboratory of High Performance Ceramics and Superfine Microstructure (Opening Project Grant SKL202004SIC); NSAF (No.U2230131); Tsinghua University (State Key Laboratory of New Ceramic and Fine Processing Opening Project Grant KF202207) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher ACS Publications en
dc.rights © 2022, American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Nano Materials, after technical editing by the publisher. To access the final edited and published work see: en
dc.subject Flexibility en
dc.subject Intercalation en
dc.subject MXene en
dc.subject Nanosheet en
dc.subject Superlattice en
dc.subject Thermoelectric en
dc.title MXene nanosheet/organics superlattice for flexible thermoelectrics en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Kafil Razeeb Mahmood, Tyndall Microsystems, University College Cork, Cork, Ireland. +353-21-490-3000 Email: en
dc.internal.availability Full text available en Access to this article is restricted until 12 months after publication by request of the publisher. en 2023-11-01 2022-11-24T10:04:27Z
dc.description.version Accepted Version en
dc.internal.rssid 636028044
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Horizon 2020 en
dc.contributor.funder European Regional Development Fund en
dc.contributor.funder Natural Science Foundation of Jiangsu Province en
dc.contributor.funder National Natural Science Foundation of China en
dc.contributor.funder State Key Laboratory of High Performance Ceramics and Superfine Microstructure en
dc.contributor.funder Tsinghua University en
dc.contributor.funder Priority Academic Program Development of Jiangsu Higher Education Institutions en
dc.description.status Peer reviewed en
dc.identifier.journaltitle ACS Applied Nano Materials en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress en
dc.internal.bibliocheck In press. Add volume, issue, start page, end page. Amend citation as necessary. en
dc.relation.project info:eu-repo/grantAgreement/EC/H2020::RIA/825114/EU/Smart Autonomous Multi Modal Sensors for Vital Signs Monitoring/SmartVista en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Investigator Programme/15/IA/3160/IE/Thermoelectric efficiency of IV-VI and V2-VI3 materials driven near phase transitions/ en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2276/IE/I-PIC Irish Photonic Integration Research Centre/ en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Research Centres/13/RC/2077/IE/CONNECT: The Centre for Future Networks & Communications/ en
dc.identifier.eissn 2574-0970

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