| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-정밀화학 |
| 제목 |
Sensitive SERS probes on the basis of nanogap control using SiO2@Au@Ag alloy on silica nanoparticles |
| 초록 |
Surface-enhanced Raman scattering (SERS) is in the spotlight as a highly sensitive and selective analytical technique for biometric imaging applications and environmental monitoring. SERS probes using silver growth were synthesized onto gold nanoparticle(NP) seeding based on SiO2@Au@Ag NPs. We developed the simplistic method to detect chemicals sensitively, and this is a method of preparing nanogaps containing Au-Ag NP on the surface of Silica NP. The Au NPs-mediated Ag growth method was used to synthesize SiO2@Au@Ag NPs. The SERS intensity of SiO2@Au@Ag NPs were identified with 4-aminothiophenol (ATP) as Raman chemical. The consequence of SERS of the NPs was narrow gaps between two Ag NPs of the probes. The E-field at the gaps was strengthened and NPs showed a strong Raman signal. The SiO2@Au@Ag NPs can be applied to detect chemical mass in various fields and can be applied as sensitive SERS substrate. |
| 저자 |
김우연, 김윤희, 복성재, 성보미, 전봉현
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| 소속 |
건국대 |
| 키워드 |
Surface-enhanced Raman scattering (SERS); hot-spot; nanogap; Ag-Au alloy on silica nanoparticles
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| E-Mail |
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