发射短波红外的各向异性表面带电金纳米团簇的高光致发光特性
High photoluminescence of shortwave infrared-emitting anisotropic surface charged gold nanoclusters.
作者信息
Musnier Benjamin, Wegner K David, Comby-Zerbino Clothilde, Trouillet Vanessa, Jourdan Muriel, Häusler Ines, Antoine Rodolphe, Coll Jean-Luc, Resch-Genger Ute, Le Guével Xavier
机构信息
Institute for Advanced Biosciences, University of Grenoble Alpes/INSERM1209/CNRS-UMR5309, Grenoble, France. xavier.le-guevel@univ-grenoble-alpes
BAM Federal Institute for Materials Research and Testing, Richard-Willstaetter-Str. 11, 12489 Berlin, Germany.
出版信息
Nanoscale. 2019 Jul 7;11(25):12092-12096. doi: 10.1039/c9nr04120f. Epub 2019 Jun 18.
Incorporating anisotropic surface charges on atomically precise gold nanoclusters (Au NCs) led to a strong absorption in the near-infrared region and could enable the formation of self-assembled Au NCs exhibiting an intense absorption band at ∼1000 nm. This surface modification showed a striking enhancement of the photoluminescence in the Shortwave Infrared (SWIR) region with a quantum yield as high as 6.1% in water.
在原子精确的金纳米团簇（Au NCs）上引入各向异性表面电荷，导致在近红外区域有强烈吸收，并能形成在~1000 nm处呈现强吸收带的自组装Au NCs。这种表面修饰在短波红外（SWIR）区域显示出光致发光的显著增强，在水中量子产率高达6.1%。
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