Synthesis and optical properties of hybrid and alloy plasmonic nanoparticles

American Chemical Society
Publication Type:
Journal Article
Chemical Reviews, 2011, 111 (6), pp. 3713 - 3735
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The plasmon resonances and other optical properties of elemental noble and alkali metal nanoparticles have generated enormous scienti?c interest. 1-11 There are numerous applications for plasmon-active nanoparticles, especially in areas such as biological microscopy, medicine, and sensors. 12-18 The various applications exploit some aspect of the plasmon resonance, which include particle-particle plasmon interactions, 19 the unusual coloring or dichroic e?ects in isolated particles, 20,21 light-induced plasmonic heating, 22 light scattering, 23 or twophoton phenomena. 24 Hybrid or multifunctional nanoparticles constructed from more than one component phase have also been attracting increasing interest due to their additional functionalities. 25-30 In this review, we consider speci?cally the optical properties of solid nanoparticles composed of more than one phase or compound. Alloyed nanoparticles (solid solutions or intermetallic compounds of the metallic elements) are also included because these intergrade with the two-phase hybrids
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