发光二极管
材料科学
光电子学
纳米孔
二极管
蚀刻(微加工)
表面等离子体子
表面等离子共振
等离子体子
纳米颗粒
图层(电子)
纳米技术
作者
Xiaokang Mao,Zhiguo Yu,Peng Che,Jing Zhou,Yuyin Li,Jianbo Feng,Zili Xie,Hong Zhao,Jiandong Ye,Xiangqian Xiu,Ke Wang,Yi Shi,Rong Zhang,Youdou Zheng
出处
期刊:Cornell University - arXiv
日期:2021-04-02
标识
DOI:10.48550/arxiv.2104.00849
摘要
Localized surface plasmons (LSPs) have played a significant role in improving the light emission efficiency of light emitting diodes (LEDs). In this report, polygonal nanoholes have been fabricated in the p-GaN layer of InGaN-based LEDs by using Ni nanoporous film as the etching mask, and then Au/Al metal nanoparticles are embedded in the nanoholes to form the LSP structure. The coupling between the LSP and the LED has been clearly observed. The results show that the light output of the LEDs has been increased by 46% at higher current injection condition, and together with a shift of the gain peak position to the LSP peak resonance energy. As the coupling distance is decreased from 60 nm to 30 nm, the maximum enhancement factor increases to 2.38. The above results indicate that the LSP from the polygonal metal nanoparticles is a kind of very promising structure to enhance the lighting performance of the InGaN-based LEDs.
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