https://scholars.lib.ntu.edu.tw/handle/123456789/616411
標題: | Self assembled gold and silver nanoparticulates on silicon nanotips as surface enhanced Raman active substrates | 作者: | Chattopadhyay S. Lo H.C. Chen K.H. Hsu C.H. Chen L.C. LI-CHYONG CHEN |
公開日期: | 2003 | 卷: | 788 | 起(迄)頁: | 81-88 | 來源出版物: | Materials Research Society Symposium - Proceedings | 摘要: | Silicon nanotips, grown via electron cyclotron resonance plasma chemical vapour deposition, with apex diameters of ∼2nm and lengths of 1000 nm and densities of 1011/cm2 were used as a new substrate for surface enhanced Raman spectroscopy. Ion beam sputtered gold and silver self assemble on these substrates as nanoparticulates of 4-10 nm diameter and these metallic nanoparticulates assist in the surface enhancement of Raman signals of analytes. Molecules such as Rhodamine 6G and bis-Pyridyl ethylene of varied concentrations, in the range of 10-6-10-10 M, has been studied on these substrates and enhancements in the range of 10 6-108 were observed. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-2442521352&doi=10.1557%2fproc-788-l2.5&partnerID=40&md5=946c110ea66b16faf719e91bb80b06f8 https://scholars.lib.ntu.edu.tw/handle/123456789/616411 |
ISSN: | 02729172 | DOI: | 10.1557/proc-788-l2.5 | SDG/關鍵字: | Chemical vapor deposition;Cyclotron resonance;Ethylene;Gold;Raman scattering;Raman spectroscopy;Self assembly;Silicon;Silver;Substrates;Nanoparticulates;Nanotips;Surface enhanced Raman active substrates;Nanostructured materials |
顯示於: | 凝態科學研究中心 |
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