[8a-PB2-1~32] 12.3 Functional Materials and Novel Devices

[8a-PB2-31] Investigation of Performance Improvement Through Ligand Exchange in Coated Light-Emitting Devices Using Blue Core-Shell Quantum Dots

〇Yuki Minakawa¹, Riki Masui¹, Eiji Itoh¹ (1.Shinshu Univ.)

Keywords:

quantum dot,emitting device,solution process

A study on improving the characteristics of coated self-emissive devices (QD-ELs) using blue core-shell quantum dots. To enhance carrier injection and transport, we investigated ligand exchange treatments for the quantum dots and the device fabrication process. Multilayer devices were fabricated using a solution process, achieving a maximum external quantum efficiency (EQE) of 6.39%. We report on the effects of ligand exchange and the film thickness of each layer on the improvement of device performance.