HKU Data Repository

File(s) under permanent embargo

Supporting data for "Optical Study of Quantum Dot and Perovskite Light-Emitting Diodes Based on Simulation"

posted on 2022-07-26, 08:48 authored by Guanding MeiGuanding Mei

Simulated data for "Optical Study of Quantum Dot and Perovskite Light-Emitting Diodes Based on Simulation"

The optical simulation is mainly implemented by the commercial software Setfos.

Next-generation displays raise many challenging demands, such as wider color gamut, higher stability, and higher energy efficiency. Colloidal quantum dots (QDs) and metal halide perovskite materials are emerging optoelectronic semiconductors for the next-generation display. Compared with organic light-emitting diodes (OLEDs), the light-emitting diodes based on quantum dots (QLEDs) and perovskites (PeLEDs) exhibit tunable emission colors, narrow emission spectrum, high quantum yields, and low-cost solution processability.

Based on wave optics and nano-optics, the research investigated microcavity effect, surface plasmon polaritons (SPPs), dipole radiation, and the Purcell effect in QLED and PeLED, and proposed systematical routes for optical analysis and efficiency optimization. 

The research involves the following parts:

1. Wave optics and the dipole model of planar light-emitting diodes.

2. Optical design based on the microcavity effect, SPPs, and the Purcell effect. 

3. Light extraction strategy based on optical tunneling.

4. Full-color quantum dot light-emitting based on microcavities.

5. High-efficiency microcavity perovskite light-emitting diodes.

In addition to the thesis, you can read the articles below for more information:

1. Mei, Guanding, et al. "Light extraction employing optical tunneling in blue InP quantum dot light-emitting diodes." Applied Physics Letters 120.9 (2022): 091101.

2. Mei, Guanding, et al. "Full-Color Quantum Dot Light-Emitting Diodes Based on Microcavities." IEEE Photonics Journal 14.2 (2022): 1-9.

3. Mei, Guanding, et al. "Microcavity Design Upping Light Extraction Efficiency in Perovskite Light-emitting Diodes" In preparation.