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

Qing Ci; Xingang Ren; Yeqiang Yan; Hao Ren; Kaikun Niu; Guoxing Sun; Zhixiang Huang; Xianliang Wu

doi:10.1109/JPHOT.2021.3107054

IEEE Photonics Journal (Jan 2021)

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

Qing Ci,
Xingang Ren,
Yeqiang Yan,
Hao Ren,
Kaikun Niu,
Guoxing Sun,
Zhixiang Huang,
Xianliang Wu

Affiliations

Qing Ci: Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui, China
Xingang Ren: ORCiD; Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui, China
Yeqiang Yan: Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui, China
Hao Ren: Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui, China
Kaikun Niu: Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui, China
Guoxing Sun: Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui, China
Zhixiang Huang: ORCiD; Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui, China
Xianliang Wu: Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui, China

DOI: https://doi.org/10.1109/JPHOT.2021.3107054
Journal volume & issue: Vol. 13, no. 4
pp. 1 – 5

Abstract

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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 65o by judicious selection of the nanopatterns. This work is of great importance for engineering highly directional and efficient luminescence devices.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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