An electrically driven light source with high output efficiency of surface plasmons
A surface plasmon, high-output technology, applied in the field of light sources, to achieve the effect of enhancing output efficiency
Active Publication Date: 2021-06-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST
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Problems solved by technology
Most of the current research focuses on the strong coupling between surface plasmons and excitons in dyes or small molecules, but there is little research on the strong coupling between surface plasmons and excitons in semiconductor quantum dots
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Embodiment 1
[0022] This embodiment provides a figure 1 The shown electric-driven light source with high output efficiency of surface plasmons includes a first metal film 1, a first light-emitting layer 2 is arranged on the top of the first metal film 1, and a first light-emitting layer 2 is arranged on the top of the first light-emitting layer 2 A first light-transmitting conductive layer 3 is provided, a first light-transmitting insulating layer 4 is arranged above the first light-transmitting conductive layer 3, and a metal strip array 5 is arranged above the first light-transmitting insulating layer 4, so A second light-transmitting insulating layer 6 is arranged above the metal strip array 5, a second light-transmitting conductive layer 7 is arranged above the second light-transmitting insulating layer 6, and a second light-transmitting conductive layer 7 is arranged above the second light-transmitting conductive layer 7. There is a second light-emitting layer 8, and a second metal fi...
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Abstract
The invention relates to an electrically driven light source with high output efficiency of surface plasmons, which comprises a first metal film, a first light-emitting layer is arranged above the first metal film, and a first light-transmitting layer is arranged above the first light-emitting layer. Conductive layer, a first light-transmitting insulating layer is arranged above the first light-transmitting conductive layer, a metal strip array is arranged above the first light-transmitting insulating layer, a second light-transmitting insulating layer is arranged above the metal strip array, and the second A second light-transmitting conductive layer is arranged above the light-transmitting insulating layer, a second light-emitting layer is arranged above the second light-transmitting conductive layer, and a second metal film is arranged above the second light-emitting layer; the first light-transmitting insulating layer The length is greater than the length of the first light-emitting layer, and the length of the second light-transmitting conductive layer is greater than the length of the second light-emitting layer; the light source not only makes more light gather between the metal strips by symmetrically setting the light source, but also makes full use of the quantum well The light radiated by the layer enhances the output efficiency of surface plasmons.
Description
technical field [0001] The invention belongs to the technical field of light sources, and in particular relates to an electrically driven light source with high output efficiency of surface plasmons. Background technique [0002] Surface plasmons (SurfacePlasmons, SPs) are an electromagnetic surface wave formed by the coherent oscillation of free electrons at the interface of a metal medium. Because SPs can realize the transmission and manipulation of light in the sub-wavelength range, and can generate significantly enhanced local optical fields in some special metal micro-nano structures, it is widely used in biosensors, enhanced surface Raman scattering and photonic circuits, etc. There are important applications in many fields. In recent years, the combination of noble metal nanoparticles and semiconductor nanostructures to obtain an optically resonant system has aroused an upsurge of research because of its unique and excellent properties different from those of composi...
Claims
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IPC IPC(8): H01L33/44H01L33/06H01L33/08H01L33/30
CPCH01L33/06H01L33/08H01L33/30H01L33/44
Inventor 刘黎明张小文迟锋易子川张智水玲玲
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST