Magnetoplasmon Resonances in Semiconductor Nanocrystals: Potential for a New Information Technology Platform.,ChemSusChem

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Magnetoplasmon Resonances in Semiconductor Nanocrystals: Potential for a New Information Technology Platform.
ChemSusChem ( IF 7.5 ) Pub Date : 2020-07-18 , DOI: 10.1002/cssc.202001468
Penghui Yin ₁ , Pavle V Radovanovic _{1,

2}

Affiliation

Interaction between light and plasmon oscillations in semiconductor nanocrystals has received significant attention in recent years driven, in part, by the possibility of coupling between plasmonic and semiconducting properties. Such coupling could lead to a variety of new applications in plasmonics, photonics, and optoelectronics. In this Concept we discuss the methods for generation of localized surface plasmon resonances in colloidal semiconductor nanocrystals and their unique magneto‐optical properties. Different means of introducing free charge carriers, including aliovalent doping, non‐stoichiometry, and external charging, are first compared and contrasted. The resulting plasmons can be manipulated using circularly polarized light and external magnetic field, allowing for the formation of the magnetoplasmon modes. The concept of using these magnetoplasmon modes as a new degree of freedom for controlling excitonic states and charge‐carrier polarization is introduced and discussed. We also highlight some notable recent examples of controlling plasmon–exciton interactions and comment on their implications for future research in sustainable information technology.

中文翻译：

半导体纳米晶体中的磁等离子体共振：新信息技术平台的潜力。

近年来，半导体纳米晶体中光与等离子体激元振荡之间的相互作用受到了广泛的关注，部分原因是等离子体与半导体性质之间可能存在耦合。这种耦合可能会导致在等离子，光子和光电方面的各种新应用。在本概念中，我们讨论了在胶体半导体纳米晶体中产生局部表面等离子体激元共振的方法及其独特的磁光特性。首先比较并对比了引入自由电荷载流子的不同方法，包括异价掺杂，非化学计量和外部电荷。可以使用圆偏振光和外部磁场来控制所得等离激元，从而形成磁等离振子模式。介绍并讨论了使用这些磁等离子体激元作为控制激子态和载流子极化的新自由度的概念。我们还重点介绍了控制等离子体激子相互作用的最新实例，并评论了它们对可持续信息技术未来研究的影响。

更新日期：2020-09-24

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