Boron nitride nanosheets as improved and reusable substrates for gold nanoparticles enabled surface enhanced Raman spectroscopy

Handle URI:
http://hdl.handle.net/10754/563956
Title:
Boron nitride nanosheets as improved and reusable substrates for gold nanoparticles enabled surface enhanced Raman spectroscopy
Authors:
Cai, Qiran; Li, Luhua; Yu, Yuanlie ( 0000-0002-3895-6222 ) ; Liu, Yun; Huang, Shaoming; Chen, Ying; Watanabe, Kenji; Taniguchi, Takashi
Abstract:
Atomically thin boron nitride (BN) nanosheets have been found to be excellent substrates for noble metal particles enabled surface enhanced Raman spectroscopy (SERS), thanks to their good adsorption of aromatic molecules, high thermal stability and weak Raman scattering. Faceted gold (Au) nanoparticles have been synthesized on BN nanosheets using a simple but controllable and reproducible sputtering and annealing method. The size and density of the Au particles can be controlled by sputtering time, current and annealing temperature etc. Under the same sputtering and annealing conditions, the Au particles on BN of different thicknesses show various sizes because the surface diffusion coefficients of Au depend on the thickness of BN. Intriguingly, decorated with similar morphology and distribution of Au particles, BN nanosheets exhibit better Raman enhancements than silicon substrates as well as bulk BN crystals. Additionally, BN nanosheets show no noticeable SERS signal and hence cause no interference to the Raman signal of the analyte. The Au/BN substrates can be reused by heating in air to remove the adsorbed analyte without loss of SERS enhancement. This journal is © the Owner Societies 2015.
KAUST Department:
Advanced Membranes and Porous Materials Research Center; Chemical and Biological Engineering Program
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Phys. Chem. Chem. Phys.
Issue Date:
2015
DOI:
10.1039/c5cp00532a
ARXIV:
arXiv:1503.03498
Type:
Article
ISSN:
14639076
Sponsors:
L. H. Li thanks the financial support from ADPRF2014 and CRGS2015. Y. Chen thanks the funding from the Australian Research Council under the Discovery Program.
Additional Links:
http://arxiv.org/abs/arXiv:1503.03498v1
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Chemical and Biological Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorCai, Qiranen
dc.contributor.authorLi, Luhuaen
dc.contributor.authorYu, Yuanlieen
dc.contributor.authorLiu, Yunen
dc.contributor.authorHuang, Shaomingen
dc.contributor.authorChen, Yingen
dc.contributor.authorWatanabe, Kenjien
dc.contributor.authorTaniguchi, Takashien
dc.date.accessioned2015-08-03T12:20:48Zen
dc.date.available2015-08-03T12:20:48Zen
dc.date.issued2015en
dc.identifier.issn14639076en
dc.identifier.doi10.1039/c5cp00532aen
dc.identifier.urihttp://hdl.handle.net/10754/563956en
dc.description.abstractAtomically thin boron nitride (BN) nanosheets have been found to be excellent substrates for noble metal particles enabled surface enhanced Raman spectroscopy (SERS), thanks to their good adsorption of aromatic molecules, high thermal stability and weak Raman scattering. Faceted gold (Au) nanoparticles have been synthesized on BN nanosheets using a simple but controllable and reproducible sputtering and annealing method. The size and density of the Au particles can be controlled by sputtering time, current and annealing temperature etc. Under the same sputtering and annealing conditions, the Au particles on BN of different thicknesses show various sizes because the surface diffusion coefficients of Au depend on the thickness of BN. Intriguingly, decorated with similar morphology and distribution of Au particles, BN nanosheets exhibit better Raman enhancements than silicon substrates as well as bulk BN crystals. Additionally, BN nanosheets show no noticeable SERS signal and hence cause no interference to the Raman signal of the analyte. The Au/BN substrates can be reused by heating in air to remove the adsorbed analyte without loss of SERS enhancement. This journal is © the Owner Societies 2015.en
dc.description.sponsorshipL. H. Li thanks the financial support from ADPRF2014 and CRGS2015. Y. Chen thanks the funding from the Australian Research Council under the Discovery Program.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://arxiv.org/abs/arXiv:1503.03498v1en
dc.titleBoron nitride nanosheets as improved and reusable substrates for gold nanoparticles enabled surface enhanced Raman spectroscopyen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentChemical and Biological Engineering Programen
dc.identifier.journalPhys. Chem. Chem. Phys.en
dc.contributor.institutionInstitute for Frontier Materials, Deakin University, Geelong Waurn Ponds CampusWaurn Ponds, VIC, Australiaen
dc.contributor.institutionResearch School of Chemistry, Australian National UniversityCanberra, ACT, Australiaen
dc.contributor.institutionNanomaterials and Chemistry Key Laboratory, Wenzhou UniversityWenzhou, Chinaen
dc.contributor.institutionNational Institute for Materials Science, Namiki 1-1Tsukuba Ibaraki, Japanen
dc.identifier.arxividarXiv:1503.03498en
kaust.authorYu, Yuanlieen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.