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Superradiant emission from self-assembled light emitters: From molecules to quantum dots
MRS Bulletin ( IF 4.1 ) Pub Date : 2020-10-09 , DOI: 10.1557/mrs.2020.250
G. Rainò , H. Utzat , M.G. Bawendi , M.V. Kovalenko

Colloidal synthesis methods and ultrahigh-vacuum molecular beam epitaxy can tailor semiconductor-based nanoscale single emitters—quantum dots—as the building blocks for classical optoelectronic devices, such as lasers, light-emitting devices, and display technologies. These novel light sources have a basic resemblance of luminescent organic molecules, individually and in the aggregated forms. Highly ordered superstructures of quantum dots, obtained via scalable bottom-up self-assembly, exhibit diverse collective phenomena, such as band-like charge transport or superradiant emission. Superradiance emerges from coherent coupling of several emitters via a common radiation field resulting in a single giant dipole leading to short (sub-nanosecond) and intense (proportional to the squared number of coupled emitters) bursts of light. In this article, we review the basic principles and progress in the development of superradiant emitters with organic molecules and inorganic quantum dots, in view of their integration into classical and novel quantum light sources.



中文翻译:

自组装发光体的超辐射发射:从分子到量子点

胶体合成方法和超高真空分子束外延技术可以将基于半导体的纳米级单发射体(量子点)定制为经典光电器件(如激光器,发光器件和显示技术)的基础。这些新颖的光源具有单个或聚集形式的发光有机分子的基本相似之处。通过可扩展的自下而上的自组装获得的量子点的高度有序的超结构表现出各种集体现象,例如带状电荷传输或超辐射发射。多个辐射器通过公共辐射场的相干耦合会产生超辐射,从而导致单个巨型偶极子产生短(亚纳秒)和强烈(与耦合的发射器的平方数成正比)的光脉冲。在这篇文章中,

更新日期:2020-10-11
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