Surface Plasmon-Enhanced Luminescence of CdSe/CdS Quantum Dots Film Based on Au Nanoshell Arrays
Surface Plasmon-Enhanced Luminescence of CdSe/CdS Quantum Dots Film Based on Au Nanoshell Arrays
复制标题
基于 Au 纳米壳阵列的 CdSe/CdS 量子点薄膜的表面等离子体增强发光
DOI：
10.3390/ma12030362
复制
发表时间：
2019-02-01
期刊：
影响因子：
3.4
通讯作者：
Jia, Guo-Zhi
中科院分区：
文献类型：
--
作者：
Luo, Chun-Li;Yang, Rui-Xia;Jia, Guo-Zhi
本文采用自组装纳米球光刻和热分解聚合物相结合的方法，制备了金纳米壳阵列作为光激活材料。通过改变Au纳米壳层阵列的大小，可以将表面等离子体共振的强度和位置从可见光区域调谐到近红外区域。当金属纳米粒子的共振吸收峰与核壳结构的CdSe/CDS量子点的发射波长相匹配时，可以显著增强其荧光强度。解释了荧光增强的物理机制。
In this paper, Au nanoshell arrays, serving as a photo-activated material, are fabricated via the combination of self-assembled nanosphere lithography and the thermal decomposing polymer method. The intensity and position of surface plasmonic resonance can be tuned from the visible region to the near-infrared region by changing the size of Au nanoshell arrays. When resonance absorption peaks of metal nanoparticles are matched with emission wavelengths of core-shell CdSe/CdS quantum dots, fluorescent intensity of CdSe/CdS quantum dots can be strongly enhanced. The physical mechanism of fluorescent enhancement is explained.