Balancing silicon/aluminum oxide junctions for super-plasmonic emission enhancement of quantum dots via plasmonic metafilms.
Balancing silicon/aluminum oxide junctions for super-plasmonic emission enhancement of quantum dots via plasmonic metafilms.
复制标题
平衡硅/氧化铝结，通过等离子体超薄膜实现量子点的超等离子体发射增强。
DOI：
10.1039/c7nr09396a
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发表时间：
2018
期刊：
影响因子：
6.7
通讯作者：
Judy Z. Wu
中科院分区：
文献类型：
--
作者：
S. M. Sadeghi;Waylin J Wing;Rithvik R. Gutha;J. Wilt;Judy Z. Wu
我们研究了Si/Al氧化物结的结构特征对金属氧化物等离子体元膜的影响，通过将这些结放置在Au/Si肖特基势垒附近形成。研究了沉积在这种元膜上的胶体半导体量子点的发射强度和动力学，同时控制了Si/Al氧化结的表面形貌和结构组成。结果表明，硅/铝氧化物结可以重塑等离子体效应的影响，使其能够增加激子的寿命。在这些条件下，等离子体元膜可以隔离量子点波动的阱环境中的激子，提供超等离子体发射增强，包括提高自发发射衰减率和抑制俄歇衰变。
We study the impact of structural features of Si/Al oxide junctions on metal-oxide plasmonic metafilms formed via placing such junctions in close vicinity of an Au/Si Schottky barrier. The emission intensity and dynamics of colloidal semiconductor quantum dots deposited on such metafilms are investigated, while the surface morphology and structural compositions of the Si/Al oxide junction are controlled. The results show the conditions wherein the Si/Al oxide junction can reshape the impact of plasmonic effects, allowing it to increase the lifetimes of excitons. Under these conditions, the plasmonic metafilms can quarantine excitons against the fluctuating trap environments of the quantum dots, offering super-plasmonic emission enhancement that includes enhancement of the spontaneous emission decay rate combined with the suppression of Auger decay.
使用金属氧化物光活性基底探测胶体量子点光诱导特性的结构依赖性。
影响因子：
3.2
作者：
Patty,Kira;Sadeghi,SeyedM;Campbell,Quinn;Hamilton,Nathan;West,RobertG;Mao,Chuanbin
通讯作者：
Mao,Chuanbin