金屬介電核殼結(jié)構(gòu)復合納米顆粒因其獨特的結(jié)構(gòu)而具有許多奇異的性質(zhì),尤其表現(xiàn)在表面等離子體共振特性上。通過改變金屬納米顆粒的大小和核殼的相對尺寸,可實現(xiàn)光學共振在很寬波段內(nèi)的可調(diào)特性。這一特性不僅在光子學,而且在生物光子學、生物醫(yī)學等領域都有廣泛的應用前景。本文介紹了幾種金屬介電核殼結(jié)構(gòu)納米顆粒的制備、性質(zhì)及其應用。
關(guān)鍵詞　金屬介電核殼結(jié)構(gòu)　復合納米顆粒　表面等離子體共振

Abstract 　Due to the unique structure , core2shell structure composite nanoparticles , which consist of a dielectric core coated with a nanometer scale metallic shell , have many unusual properties , especially the properties of surface plasmon resonance. By varying the size of metal nanoparticles and the relative dimensions of the core and shell , the optical resonance of these nanoparticles can be regulated in a broad spectral range. The preparation , properties and applications of various types of metallodielectric core2shell structure composite nanoparticles are reviewed in this article.
Key words 　metallodielectric core2shell structures ; composite nanoparticles ; surface plasmon resonance