Fine-tuning growth in gold nanostructures from achiral 2D to chiral 3D geometries  

作　　者：Lili Tan Zhi Chen Chengyu Xiao Zhiyong Geng Yinran Jin Chaoyang Wei Fei Teng Wenlong Fu Peng-peng Wang 

机构地区：[1]State Key Laboratory for Mechanical Behavior of Materials,Shaanxi International Research Center for Soft Matter,School of Materials Science and Engineering,Xi’an Jiaotong University,Xi’an 710049,China

出　　处：《Nano Research》2024年第7期6654-6660,共7页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.22001201 and 22075224);the Science and Technology Agency of Shaanxi Province(No.2022KWZ-21).

摘　　要：Enriching the library of chiral plasmonic structures is of significant importance in advancing their applicability across diverse domains such as biosensing,nanophotonics,and catalysis.Here,employing triangle nanoplates as growth seeds,we synthesized a novel class of chiral-shaped plasmonic nanostructures through a wet chemical strategy with dipeptide as chiral inducers,including chiral tri-blade boomerangs,concave rhombic dodecahedrons,and nanoflowers.The structural diversity in chiral plasmonic nanostructures was elucidated through their continuous morphological evolution from two-dimensional to threedimensional architectures.The fine-tuning of chiroptical properties was achieved by precisely manipulating crucial synthetic parameters such as the amount of chiral molecules,seeds,and gold precursor that significantly influenced chiral structure formation.The findings provide a promising avenue for enriching chiral materials with highly sophisticated structures,facilitating a fundamental understanding of the relationship between structural nuances and chiroptical properties.

关 键 词：plasmonic nanostructures geometric chirality circular dichroism fine-tuning 

分 类 号：O62[理学—有机化学]