Great chiral fluorescence from the optical duality of silver nanostructures enabled by 3D laser printing,Materials Horizons

当前位置： X-MOL 学术 › Mater. Horiz. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Great chiral fluorescence from the optical duality of silver nanostructures enabled by 3D laser printing
Materials Horizons ( IF 12.2 ) Pub Date : 2020-10-20 , DOI: 10.1039/d0mh01207f
Hongjing Wen _{1,

2,

3,

4,

5} , Shichao Song _{1,

2,

3,

4,

5} , Fei Xie _{1,

2,

3,

4,

5} , Bin Wang _{6,

7,

8,

9,

10} , Jian Xu _{1,

2,

3,

4,

5} , Ziwei Feng _{1,

2,

3,

4,

5} , Shiyu Wu _{1,

2,

3,

4,

5} , Jing Han _{1,

2,

3,

4,

5} , Bai-Ou Guan _{1,

2,

3,

4,

5} , Xiaoxuan Xu _{6,

7,

8,

9,

10} , Yaoyu Cao _{1,

2,

3,

4,

5} , Xiangping Li _{1,

2,

3,

4,

5}

Affiliation

Featured by prominent flexibility and fidelity in producing sophisticated stereoscopic structures transdimensionally, three-dimensional (3D) laser printing techniques have vastly extended the toolkit for delivering diverse functional devices. Yet chiral nanoemitters heavily resorting to artificial structures that manifest efficient emission and tightly confined light–matter interactions simultaneously remain alluring but dauntingly challenging for this technique at this moment. In this study, we assert that the chiral photoluminescence is implemented from silver nanostructures with optical duality in one go via a two-fold three-dimensional laser printing scheme. Such laser printing protocol allows the highly desired duality by simultaneously producing uniformly distributed fluorescent silver nanoclusters and aggregated plasmonic silver nanoparticles to tightly confine chiral interactions at the nanoscale. A helical emitter of 550 nm helix-diameter as fabricated has seen a record-high luminescence anisotropic factor with the absolute value up to 0.58, which is two orders of magnitude greater than fluorescent chiral silver clusters. This method holds great promise for future versatile applications in chiroptical nanodevices.

中文翻译：

通过3D激光打印实现的银纳米结构的光学对偶性，产生了很好的手性荧光

三维（3D）激光打印技术的特点是，在制造三维立体结构时，具有显着的灵活性和保真度，从而大大扩展了用于提供各种功能设备的工具包。然而，手性纳米发射体大量采用表现出有效发射并严格限制光-物质相互作用的人造结构，同时仍然很诱人，但此刻对这项技术而言是艰巨的挑战。在这项研究中，我们断言手性光致发光是通过具有光对偶性的银纳米结构实现的二维三维激光打印方案。通过同时产生均匀分布的荧光银纳米团簇和聚集的等离激元银纳米颗粒，这样的激光印刷协议可以实现高度期望的双重性，从而将手性相互作用严格限制在纳米级。所制造的直径为550 nm螺旋形螺旋发射器的发光各向异性系数达到了创纪录的高，其绝对值高达0.58，比荧光手性银团簇大两个数量级。这种方法对于在整形纳米器件中的未来通用应用具有广阔的前景。

更新日期：2020-11-03

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11