Publications
Detailed Information
Frequency-domain proof of the existence of atomic-scale SERS hot-spots
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shin, Hyun-Hang | - |
dc.contributor.author | Yeon, Gyu Jin | - |
dc.contributor.author | Choi, Han-Kyu | - |
dc.contributor.author | Park, Sang -Min | - |
dc.contributor.author | Lee, Kang Sup | - |
dc.contributor.author | Kim, Zee Hwan | - |
dc.creator | 김지환 | - |
dc.date.accessioned | 2019-04-24T23:01:55Z | - |
dc.date.available | 2020-04-05T23:01:55Z | - |
dc.date.created | 2018-12-17 | - |
dc.date.issued | 2018-01 | - |
dc.identifier.citation | Nano Letters, Vol.18 No.1, pp.262-271 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | https://hdl.handle.net/10371/148696 | - |
dc.description.abstract | The existence of sub-nanometer plasmonic hot spots and their relevance in spectroscopy and microscopy applications remain elusive despite a few recent theoretical and experimental evidence supporting this possibility. In this Letter, we present new spectroscopic evidence suggesting that Angstrom-sized hot-spots exist on the surfaces of plasmon-excited nanostructures. Surface-enhanced Raman scattering (SERS) spectra of 4,4'-biphenyl dithiols placed in metallic junctions show simultaneously blinking Stokes and anti-Stokes spectra, some of which exhibit only one prominent vibrational peak. The activated vibrational modes were found to vary widely between junction sites. Such site-specific, single-peak spectra could be successfully modeled using single-molecule SERS induced by a hot-spot with a diameter no larger than 3.5 angstrom, located at the specific molecular sites. Furthermore, the model, which assumes the stochastic creation of hot-spots on locally flat metallic surfaces, consistently reproduces the intensity distributions and occurrence statistics of the blinking SERS peaks, further confirming that the sources of the hot-spots are located on the metallic surfaces. This result not only provides compelling evidence for the existence of Angstrom-sized hot-spots but also opens up the new possibilities for the vibrational and electronic control of single-molecule photochemistry and real-space visualization of molecular vibration modes. | - |
dc.language | 영어 | - |
dc.language.iso | en | en |
dc.publisher | American Chemical Society | - |
dc.title | Frequency-domain proof of the existence of atomic-scale SERS hot-spots | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.nanolett.7b04052 | - |
dc.citation.journaltitle | Nano Letters | - |
dc.identifier.wosid | 000420000000037 | - |
dc.identifier.scopusid | 2-s2.0-85040312832 | - |
dc.description.srnd | OAIID:RECH_ACHV_DSTSH_NO:T201732845 | - |
dc.description.srnd | RECH_ACHV_FG:RR00200001 | - |
dc.description.srnd | ADJUST_YN: | - |
dc.description.srnd | EMP_ID:A079360 | - |
dc.description.srnd | CITE_RATE:12.08 | - |
dc.description.srnd | FILENAME:acs.nanolett.7b04052.pdf | - |
dc.description.srnd | DEPT_NM:화학부 | - |
dc.description.srnd | EMAIL:zhkim@snu.ac.kr | - |
dc.description.srnd | SCOPUS_YN:Y | - |
dc.description.srnd | FILEURL:https://srnd.snu.ac.kr/eXrepEIR/fws/file/f98ea8a3-a5f7-4435-8ab8-009fbdb0006e/link | - |
dc.citation.endpage | 271 | - |
dc.citation.number | 1 | - |
dc.citation.startpage | 262 | - |
dc.citation.volume | 18 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Kim, Zee Hwan | - |
dc.identifier.srnd | T201732845 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | ENHANCED RAMAN-SCATTERING | - |
dc.subject.keywordPlus | SINGLE-MOLECULE | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | PLASMONS | - |
dc.subject.keywordPlus | FIELD | - |
dc.subject.keywordPlus | RESOLUTION | - |
dc.subject.keywordPlus | NANOOPTICS | - |
dc.subject.keywordAuthor | Surface-enhanced Raman scattering | - |
dc.subject.keywordAuthor | plasmonics | - |
dc.subject.keywordAuthor | vibrational spectroscopy | - |
- Appears in Collections:
- Files in This Item:
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.