Nanocomposites of graphene oxide and upconversion rare-earth nanocrystals with superior optical limiting performance

Handle URI:
http://hdl.handle.net/10754/562159
Title:
Nanocomposites of graphene oxide and upconversion rare-earth nanocrystals with superior optical limiting performance
Authors:
Wei, Wei; He, Tingchao; Teng, Xue; Wu, Shixin; Ma, Lin; Zhang, Hua; Ma, Jan; Yang, Yanhui; Chen, Hongyu; Han, Yu ( 0000-0003-1462-1118 ) ; Sun, Handong; Huang, Ling
Abstract:
Upconversion rare-earth nanomaterials (URENs) possess highly efficient near-infrared (NIR), e.g., 980 nm, laser absorption and unique energy upconversion capabilities. On the other hand, graphene and its derivatives, such as graphene oxide (GO), show excellent performance in optical limiting (OL); however, the wavelengths of currently used lasers for OL studies mainly focus on either 532 or 1064 nm. To design new-generation OL materials working at other optical regions, such as the NIR, a novel nanocomposites, GO-URENs, which combines the advantages of both its components, is synthesized by a one-step chemical reaction. Transmission electron microscopy, X-ray diffraction, infrared spectroscopy, and fluorescence studies prove that the α-phase URENs uniformly attach on the GO surface via covalent chemical bonding, which assures highly efficient energy transfer between URENs and GO, and also accounts for the significantly improved OL performance compared to either GO or URENs. The superior OL effect is also observed in the proof-of-concept thin-film product, suggesting immediate applications in making high-performance laser-protecting products and optoelectronic devices. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
KAUST Department:
Chemical and Biological Engineering Program; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Advanced Membranes and Porous Materials Research Center; Nanostructured Functional Materials (NFM) laboratory
Publisher:
Wiley-VCH Verlag
Journal:
Small
Issue Date:
20-Apr-2012
DOI:
10.1002/smll.201200065
Type:
Article
ISSN:
16136810
Sponsors:
This work was supported by the Academic Research Fund (Tier 1) from Singapore Ministry of Education (RG 20/09) and the Start-Up Grant (SUG) from Nanyang Technological University. H.Z. is grateful for the support from MOE under AcRF Tier 2 (ARC 10/10, No. MOE2010-T2-1-060), Singapore National Research Foundation under the CREATE program: Nanomaterials for Energy and Water Management, and NTU under the New Initiative Fund FY 2010 (M58120031) in Singapore.
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Chemical and Biological Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorWei, Weien
dc.contributor.authorHe, Tingchaoen
dc.contributor.authorTeng, Xueen
dc.contributor.authorWu, Shixinen
dc.contributor.authorMa, Linen
dc.contributor.authorZhang, Huaen
dc.contributor.authorMa, Janen
dc.contributor.authorYang, Yanhuien
dc.contributor.authorChen, Hongyuen
dc.contributor.authorHan, Yuen
dc.contributor.authorSun, Handongen
dc.contributor.authorHuang, Lingen
dc.date.accessioned2015-08-03T09:46:10Zen
dc.date.available2015-08-03T09:46:10Zen
dc.date.issued2012-04-20en
dc.identifier.issn16136810en
dc.identifier.doi10.1002/smll.201200065en
dc.identifier.urihttp://hdl.handle.net/10754/562159en
dc.description.abstractUpconversion rare-earth nanomaterials (URENs) possess highly efficient near-infrared (NIR), e.g., 980 nm, laser absorption and unique energy upconversion capabilities. On the other hand, graphene and its derivatives, such as graphene oxide (GO), show excellent performance in optical limiting (OL); however, the wavelengths of currently used lasers for OL studies mainly focus on either 532 or 1064 nm. To design new-generation OL materials working at other optical regions, such as the NIR, a novel nanocomposites, GO-URENs, which combines the advantages of both its components, is synthesized by a one-step chemical reaction. Transmission electron microscopy, X-ray diffraction, infrared spectroscopy, and fluorescence studies prove that the α-phase URENs uniformly attach on the GO surface via covalent chemical bonding, which assures highly efficient energy transfer between URENs and GO, and also accounts for the significantly improved OL performance compared to either GO or URENs. The superior OL effect is also observed in the proof-of-concept thin-film product, suggesting immediate applications in making high-performance laser-protecting products and optoelectronic devices. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.description.sponsorshipThis work was supported by the Academic Research Fund (Tier 1) from Singapore Ministry of Education (RG 20/09) and the Start-Up Grant (SUG) from Nanyang Technological University. H.Z. is grateful for the support from MOE under AcRF Tier 2 (ARC 10/10, No. MOE2010-T2-1-060), Singapore National Research Foundation under the CREATE program: Nanomaterials for Energy and Water Management, and NTU under the New Initiative Fund FY 2010 (M58120031) in Singapore.en
dc.publisherWiley-VCH Verlagen
dc.subjectenergy transferen
dc.subjectgraphene oxideen
dc.subjectnanocompositesen
dc.subjectoptical limitingen
dc.subjectupconversion rare-earth nanomaterialsen
dc.titleNanocomposites of graphene oxide and upconversion rare-earth nanocrystals with superior optical limiting performanceen
dc.typeArticleen
dc.contributor.departmentChemical and Biological Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentNanostructured Functional Materials (NFM) laboratoryen
dc.identifier.journalSmallen
dc.contributor.institutionSchool of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singaporeen
dc.contributor.institutionSchool of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singaporeen
dc.contributor.institutionSchool of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singaporeen
kaust.authorHan, Yuen
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