The Influence of the Emission Source on Outcoupling and Directivity of Patterned Perovskite Light-Emitting Diodes

被引：2
作者：
Ci, Qing [1 ,2 ,3 ]
Ren, Xingang [1 ,2 ,3 ]
Yan, Yeqiang [1 ,2 ,3 ]
Ren, Hao [1 ,2 ,3 ]
Niu, Kaikun [1 ,2 ,3 ]
Sun, Guoxing [1 ,2 ,3 ]
Huang, Zhixiang [1 ,2 ,3 ]
Wu, Xianliang [1 ,2 ,3 ]
机构：
[1] Anhui Univ, Inst Phys Sci & Informat Technol, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230039, Anhui, Peoples R China
[2] Dept Educ Anhui Prov, Anhui Prov Key Lab Target Recognit & Feature Extr, Hefei 230039, Anhui, Peoples R China
[3] Dept Educ Anhui Prov, Key Lab Electromagnet Environm Sensing, Hefei 230039, Anhui, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2021年 / 13卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Perovskite light emitting diodes (PeLEDs); directivity; light extraction; nanopatterns; LOCALIZED SURFACE-PLASMON; EXTRACTION EFFICIENCY; ENHANCEMENT; MANAGEMENT;
D O I：
10.1109/JPHOT.2021.3107054
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The perovskite light-emitting diodes (PeLEDs) have attracted considerable research interests in recent years due to their decent and tunable optoelectronic characteristics. Here, we unveil the properties of the emission source (e.g., location, polarization, etc.) and the influences of the incorporated nanopatterns on the light emission of PeLEDs by using the finite difference time domain (FDTD) method. The results indicated that the PeLEDs with nanopatterns not only show substantial improvement of light extraction intensity but also reveal a remarkable directivity. Moreover, the emission angle of the directional PeLEDs can be continuously engineered over 65 degrees by judicious selection of the nanopatterns. This work is of great importance for engineering highly directional and efficient luminescence devices.
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页数：5
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