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Surface-enhanced Raman scattering from amorphous nanoflowe-rstructural Nb2O5 fabricated by two-step hydrothermal technology
Yang, LL; Wei, YQ; Song, YS; Peng, YS; Yang, Y; Huang, ZR
2020-08-04
Source PublicationMATERIALS & DESIGN
ISSN0264-1275
SubtypeArticle
AbstractSemiconductor surface-enhanced Raman scattering (SERS) substrates are showing increasing potential due to their high chemical stability and selective enhancement to probe molecules. Simultaneously, semiconductors have a greater controllability and more flexible SERS regulation strategy relative to precious metals. The tailored shape design not only can affect the SERS performance of noble metal but also can work on semiconductor SERS-active substrates. Here, for the first time, a special nanoflower structure composed of wrinkled amorphous nanosheets is introduced into the promising semiconductor SERS-active substrate Nb2O5 to improve its SERS performance. The Nb2O5 nanoflower clusters with a mean diameter of 262 nm were prepared by a simple and original two-step hydrothermal method, and exhibited a detection limit of 10(-7) M when detecting crystal violet molecules. Owning to the special nanoflower structure assembled by nanosheets. the substrate possesses a large specific surface area, which is conducive to the adsorption of more probe molecules. In addition, the good SERS performance should also be attributed to the synergistic effect of similar to 10(2) electromagnetic field enhancement of Nb2O5 nanoflower, as well as the strong charge transfer resonance in this substrate-molecule system under the 532 nm incident laser. (C) 2020 The Authors. Published by Elsevier Ltd.
DOI10.1016/j.matdes.2020.108808
WOS KeywordSERS ; METAL
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27853
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Yang, LL,Wei, YQ,Song, YS,et al. Surface-enhanced Raman scattering from amorphous nanoflowe-rstructural Nb2O5 fabricated by two-step hydrothermal technology[J]. MATERIALS & DESIGN,2020.
APA Yang, LL,Wei, YQ,Song, YS,Peng, YS,Yang, Y,&Huang, ZR.(2020).Surface-enhanced Raman scattering from amorphous nanoflowe-rstructural Nb2O5 fabricated by two-step hydrothermal technology.MATERIALS & DESIGN.
MLA Yang, LL,et al."Surface-enhanced Raman scattering from amorphous nanoflowe-rstructural Nb2O5 fabricated by two-step hydrothermal technology".MATERIALS & DESIGN (2020).
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