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Light-Trapped Nanocavities for Ultraviolet Surface-Enhanced Raman Scattering
Y. Zeng; R. Gao; J. Wang; T.-M. Shih; G. Sun; J. Lin; Y. He; J. Chen; D. Zhan; J. Zhu; W. Yang; P. Ren; F. Jiao and Z. Yang
2021
Source PublicationJournal of Physical Chemistry C
ISSN19327447
Volume125Issue:31Pages:17241-17247
AbstractThe fabrication of surface-enhanced Raman scattering (SERS) substrates with large areas, high activities, desirable uniformities, and aggregated hot spots evenly distributed in the UV (ultraviolet) region has been regarded as a formidable task. In the present work, by means of elaborate structure designs and material selections, we have fabricated periodic light-trapped nanocavities that have overcome the abovementioned difficulties. Specifically, a great amount of electromagnetic energy has been localized in nanocavities due to repeated reflections of the trapped incident light, thus re-amplifying abundant hot spots of the aluminum film. At an excitation wavelength of 325 nm, the acquisition of ultrahigh SERS enhancement factors (106) has been successfully achieved, and signal intensities are uniformly distributed after repeated measurements. In the originally weak UV region, our nanostructure design and its associated mechanism may provide a guide for future SERS-related research. 2021 American Chemical Society.
DOI10.1021/acs.jpcc.1c05175
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Indexed BySCI ; EI
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Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/65386
Collection中国科学院长春光学精密机械与物理研究所
Recommended Citation
GB/T 7714
Y. Zeng,R. Gao,J. Wang,et al. Light-Trapped Nanocavities for Ultraviolet Surface-Enhanced Raman Scattering[J]. Journal of Physical Chemistry C,2021,125(31):17241-17247.
APA Y. Zeng.,R. Gao.,J. Wang.,T.-M. Shih.,G. Sun.,...&F. Jiao and Z. Yang.(2021).Light-Trapped Nanocavities for Ultraviolet Surface-Enhanced Raman Scattering.Journal of Physical Chemistry C,125(31),17241-17247.
MLA Y. Zeng,et al."Light-Trapped Nanocavities for Ultraviolet Surface-Enhanced Raman Scattering".Journal of Physical Chemistry C 125.31(2021):17241-17247.
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