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Porous silicon decorated with Au/TiO(2) nanocomposites for efficient photoinduced enhanced Raman spectroscopy
In this study, we investigated the potential of porous silicon (PSi) modified with Au/TiO(2) nanocomposites (NCPs) as a substrate for photoinduced enhanced Raman spectroscopy (PIERS). One-step pulsed laser-induced photolysis (PLIP) was used to embed Au/TiO(2) NCPs in the surface of PSi. Scanning ele...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10204733/ https://www.ncbi.nlm.nih.gov/pubmed/37228681 http://dx.doi.org/10.1039/d3ra02598e |
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author | Huang, Sheng-Yang Gao, Wei-Ning Chou, Chia-Man Hsiao, Vincent K. S. |
author_facet | Huang, Sheng-Yang Gao, Wei-Ning Chou, Chia-Man Hsiao, Vincent K. S. |
author_sort | Huang, Sheng-Yang |
collection | PubMed |
description | In this study, we investigated the potential of porous silicon (PSi) modified with Au/TiO(2) nanocomposites (NCPs) as a substrate for photoinduced enhanced Raman spectroscopy (PIERS). One-step pulsed laser-induced photolysis (PLIP) was used to embed Au/TiO(2) NCPs in the surface of PSi. Scanning electron microscopy revealed that adding TiO(2) nanoparticles (NPs) during PLIP led to the formation of predominantly spherical Au NPs with a diameter of approximately 20 nm. Furthermore, modifying the PSi substrate with Au/TiO(2) NCPs considerably enhanced the Raman signal of rhodamine 6G (R6G) after 4 h of ultraviolet (UV) irradiation. Real-time monitoring of the Raman signals of R6G at different concentrations under UV irradiation revealed that the amplitude of the signals increased with the irradiation time for R6G concentrations ranging from 10(−3) M to 10(−5) M. PSi substrates decorated with Au/TiO(2) NCPs may be used to develop materials for PIERS applications. |
format | Online Article Text |
id | pubmed-10204733 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-102047332023-05-24 Porous silicon decorated with Au/TiO(2) nanocomposites for efficient photoinduced enhanced Raman spectroscopy Huang, Sheng-Yang Gao, Wei-Ning Chou, Chia-Man Hsiao, Vincent K. S. RSC Adv Chemistry In this study, we investigated the potential of porous silicon (PSi) modified with Au/TiO(2) nanocomposites (NCPs) as a substrate for photoinduced enhanced Raman spectroscopy (PIERS). One-step pulsed laser-induced photolysis (PLIP) was used to embed Au/TiO(2) NCPs in the surface of PSi. Scanning electron microscopy revealed that adding TiO(2) nanoparticles (NPs) during PLIP led to the formation of predominantly spherical Au NPs with a diameter of approximately 20 nm. Furthermore, modifying the PSi substrate with Au/TiO(2) NCPs considerably enhanced the Raman signal of rhodamine 6G (R6G) after 4 h of ultraviolet (UV) irradiation. Real-time monitoring of the Raman signals of R6G at different concentrations under UV irradiation revealed that the amplitude of the signals increased with the irradiation time for R6G concentrations ranging from 10(−3) M to 10(−5) M. PSi substrates decorated with Au/TiO(2) NCPs may be used to develop materials for PIERS applications. The Royal Society of Chemistry 2023-05-23 /pmc/articles/PMC10204733/ /pubmed/37228681 http://dx.doi.org/10.1039/d3ra02598e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Huang, Sheng-Yang Gao, Wei-Ning Chou, Chia-Man Hsiao, Vincent K. S. Porous silicon decorated with Au/TiO(2) nanocomposites for efficient photoinduced enhanced Raman spectroscopy |
title | Porous silicon decorated with Au/TiO(2) nanocomposites for efficient photoinduced enhanced Raman spectroscopy |
title_full | Porous silicon decorated with Au/TiO(2) nanocomposites for efficient photoinduced enhanced Raman spectroscopy |
title_fullStr | Porous silicon decorated with Au/TiO(2) nanocomposites for efficient photoinduced enhanced Raman spectroscopy |
title_full_unstemmed | Porous silicon decorated with Au/TiO(2) nanocomposites for efficient photoinduced enhanced Raman spectroscopy |
title_short | Porous silicon decorated with Au/TiO(2) nanocomposites for efficient photoinduced enhanced Raman spectroscopy |
title_sort | porous silicon decorated with au/tio(2) nanocomposites for efficient photoinduced enhanced raman spectroscopy |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10204733/ https://www.ncbi.nlm.nih.gov/pubmed/37228681 http://dx.doi.org/10.1039/d3ra02598e |
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