التفاصيل البيبلوغرافية
| العنوان: |
Surface Plasmon Resonance from Gallium-Doped Zinc Oxide Nanoparticles and Their Electromagnetic Enhancement Contribution to Surface-Enhanced Raman Scattering |
| المؤلفون: |
Yanan Wang (123548), Meng Zhang (154027), Hao Ma (114667), Hongyang Su (2613397), Aisen Li (3805387), Weidong Ruan (1805887), Bing Zhao (29538) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biophysics, Medicine, Neuroscience, Biotechnology, Immunology, Cancer, Inorganic Chemistry, Mental Health, Plant Biology, Computational Biology, Space Science, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, Ga-doped ZnO substrates, doping ratios, semiconductor-based surface-enhance., semiconductor-based EM mechanism, charge carrier density, novel SERS substrates, Ga-doped ZnO nanoparticles, Surface-Enhanced Raman Scattering, surface plasmon resonance, doping ratio, Gallium-Doped Zinc Oxide Nanoparticles, excitation wavelengths, EM enhancement contribution, SERS spectra, Electromagnetic Enhancement Contrib., Ga-doped ZnO NPs, SPR absorption |
| الوصف: |
In recent years, semiconductor-based surface-enhanced Raman scattering (SERS) substrates have received considerable attention and led to a forefront in the SERS field. However, the lack of electromagnetic (EM) enhancement contributions highly precludes the development of semiconductive-substrate-based SERS. In this study, Ga-doped ZnO nanoparticles (NPs) were fabricated and employed as novel SERS substrates based on the EM enhancement contribution of surface plasmon resonance (SPR). The obtained Ga-doped ZnO NPs exhibited obvious SPR absorptions in the visible and near- and mid-infrared regions. SPR absorption can be readily tuned by changing the doping ratios of Ga 3+ ions. The SERS spectra of Ga-doped ZnO/4-mercaptopyridine (MPy) were investigated at different excitation wavelengths of 488, 532, 633, and 785 nm. The spectral enhancement of Ga-doped ZnO substrates depended on the doping ratios, excitation wavelengths, and nearby SPR absorption. Ga-doped ZnO NPs with the highest free charge carrier density and the doping ratio of 5% showed the strongest SERS spectra. For the fixed doping ratio of 5%, the better is the match between excitation wavelengths and SPR absorption, the higher is the SERS spectral enhancement. This study showed the feasibility of EM contributions to SERS by using semiconductive substrates and can contribute to the development of the semiconductor-based EM mechanism. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Surface_Plasmon_Resonance_from_Gallium-Doped_Zinc_Oxide_Nanoparticles_and_Their_Electromagnetic_Enhancement_Contribution_to_Surface-Enhanced_Raman_Scattering/15016405 |
| DOI: |
10.1021/acsami.1c05804.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsami.1c05804.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.914087DE |
| قاعدة البيانات: |
BASE |