Presentation Information
[9a-PA4-11]Elucidating the Relationship between 3D Crystal Structural Order and Plasmon Resonance using DNA-functionalized Nanoparticle Superlattices
〇(M2)Nonoko Nagasaka1, Saki Kozawa1, Taito Ikeuchi1, Lidong Zhang1, Satoshi Ogawa2, Makoto Kuwahara2, Xu Li2, Miho Tagawa2 (1.Graduate School of Eng., Nagoya Univ., 2.IMaSS, Nagoya Univ.)
Keywords:
plasmonics,nanoparticle,SERS
Enhanced electric fields originating from plasmon resonance in periodic nanostructures hold great potential for sensitive molecular detection probes. Here, we investigated the correlation between internal plasmon resonance and 3D structual order using DNA-functionalized nanoparticle superlattices. Through surface-enhanced Raman scattering (SERS) measurements and theoretical calculations, we demonstrated that preserving structural order in superlattices leads to stronger electric field enhancement.