Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/88176
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dc.contributorDepartment of Industrial and Systems Engineeringen_US
dc.creatorYeung, KWen_US
dc.creatorDong, YQen_US
dc.creatorChen, Len_US
dc.creatorTang, CYen_US
dc.creatorLaw, Cen_US
dc.creatorTsui, GRCPen_US
dc.creatorEngstrom, DSen_US
dc.date.accessioned2020-09-18T02:13:27Z-
dc.date.available2020-09-18T02:13:27Z-
dc.identifier.issn2191-9089en_US
dc.identifier.urihttp://hdl.handle.net/10397/88176-
dc.language.isoenen_US
dc.publisherWalter de Gruyter GmbHen_US
dc.rights© 2020 Ka-Wai Yeung et al., published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0 International License. BY 4.0 (https://creativecommons.org/licenses/by/4.0/)en_US
dc.rightsThe following publication Yeung, K. W., Dong, Y. Q., Chen, L., Tang, C. Y., Law, C., Tsui, G. R. C. P., & Engstrom, D. S. (2020). Printability of photo-sensitive nanocomposites using two-photon polymerization. Nanotechnology Reviews, 9(1), 418-426 is available at https://dx.doi.org/10.1515/ntrev-2020-0031en_US
dc.subjectTwo-photon polymerizationen_US
dc.subjectDirect laser writingen_US
dc.subject3D nanofabricationen_US
dc.subjectPhotothermal nanomaterialsen_US
dc.titlePrintability of photo-sensitive nanocomposites using two-photon polymerizationen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage418en_US
dc.identifier.epage426en_US
dc.identifier.volume9en_US
dc.identifier.issue1en_US
dc.identifier.doi10.1515/ntrev-2020-0031en_US
dcterms.abstractTwo-photon polymerization direct laser writing (TPP DLW) is an emerging technology for producing advanced functional devices with complex three-dimensional (3D) micro-structures. Tremendous efforts have been devoted to developing two-photon polymerizable photo-sensitive nanocomposites with tailored properties. Light-induced reconfigurable smart materials such as liquid crystalline elastomers (LCEs) are promising materials. However, due to the difficulties in designing two-photon polymerizable liquid crystal monomer (LCM) nanocomposite photoresists, it is challenging to fabricate true 3D LCE micro-structures. In this paper, we report the preparation of photo-sensitive LCE nanocomposites containing photothermal nanomaterials, including multiwalled carbon nanotubes, graphene oxide and gold nanorods (AuNRs), for TPP DLW. The printability of the LCE nanocomposites is assessed by the fidelity of the micro-structures under different laser writing conditions. DLW of GO/LCM photoresist has shown a vigorous bubble formation. This may be due to the excessive heat generation upon rapid energy absorption of 780 nm laser energy. Compared to pure LCM photoresists, AuNR/LCM photoresists have a lower laser intensity threshold and higher critical laser scanning speed, due to the high absorption of AuNRs at 780 nm, which enhanced the photo-sensitivity of the photoresist. Therefore, a shorter printing time can be achieved for the AuNR/LCM photoresist.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationNanotechnology reviews, 2020, v. 9, no. 1, p. 418-426en_US
dcterms.isPartOfNanotechnology reviewsen_US
dcterms.issued2020-
dc.identifier.isiWOS:000543146400001-
dc.identifier.eissn2191-9097en_US
dc.description.validate202009 bcrcen_US
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumbera0675-n04, OA_Scopus/WOSen_US
dc.description.fundingSourceRGCen_US
dc.description.fundingSourceOthersen_US
dc.description.fundingTextRGC: 15229716en_US
dc.description.pubStatusPublisheden_US
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