Top- and bottom-emission-enhanced electroluminescence of deep-UV light-emitting diodes induced by localised surface plasmons

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	Top- and bottom-emission-enhanced electroluminescence of deep-UV light-emitting diodes induced by localised surface plasmons
	Huang, Kai ; Gao, Na ; Wang, Chunzi ; Chen, Xue ; Li, Jinchai ; Li, Shuping ; Yang, Xu ; Kang, Junyong ; Huang K(黄凯) ; Li SP(李书平) ; Kang JY(康俊勇)
刊名	http://dx.doi.org/10.1038/srep04380
	2014-03-14
关键词	HIGH EXTRACTION EFFICIENCY RESONANCE SPECTROSCOPY PATTERNED SAPPHIRE FANO RESONANCES QUANTUM-WELLS NANOPARTICLES EMITTERS
英文摘要	National Research Program of China [2011CB301905, 2012CB619301]; National Natural Science Foundation of China [61108064, 61227009, 11304257, 91321102]; Fundamental Research Funds for the Central Universities [2011120143]; We report localised-surface-plasmon (LSP) enhanced deep-ultraviolet light-emitting diodes (deep-UV LEDs) using Al nanoparticles for LSP coupling. Polygonal Al nanoparticles were fabricated on the top surfaces of the deep-UV LEDs using the oblique-angle deposition method. Both the top-and bottom-emission electroluminescence of deep-UV LEDs with 279 nm multiple-quantum-well emissions can be effectively enhanced by the coupling with the LSP generated in the Al nanoparticles. The primary bottom-emission wavelength is longer than the primary top-emission wavelength. This difference in wavelength can be attributed to the substrate-induced Fano resonance effect. For resonance modes with shorter wavelengths, the radiation fraction directed back into the LEDs is largest in the direction that is nearly parallel to the surface of the device and results in total reflection and re-absorption in the LEDs.
语种	英语
出版者	NATURE PUBLISHING GROUP
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/92050]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Huang, Kai,Gao, Na,Wang, Chunzi,et al. Top- and bottom-emission-enhanced electroluminescence of deep-UV light-emitting diodes induced by localised surface plasmons[J]. http://dx.doi.org/10.1038/srep04380,2014.
APA	Huang, Kai.,Gao, Na.,Wang, Chunzi.,Chen, Xue.,Li, Jinchai.,...&康俊勇.(2014).Top- and bottom-emission-enhanced electroluminescence of deep-UV light-emitting diodes induced by localised surface plasmons.http://dx.doi.org/10.1038/srep04380.
MLA	Huang, Kai,et al."Top- and bottom-emission-enhanced electroluminescence of deep-UV light-emitting diodes induced by localised surface plasmons".http://dx.doi.org/10.1038/srep04380 (2014).