Nanoassembly model of an individual few-atomic-layer-thick CdSe platelet (purple) sandwiched between a gold particle and a planar gold surface.

From the article:

Probing Confined Phonon Modes in Individual CdSe Nanoplatelets Using Surface-Enhanced Raman Scattering
Daniel O. Sigle, James T. Hugall, Sandrine Ithurria, Benoit Dubertret, and Jeremy J. Baumberg
Phys. Rev. Lett. 113, 087402 (2014)

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