Yunzhou Deng

Yunzhou Deng

Marie Skłodowska-Curie Fellow,

Cavendish Laboratory, University of Cambridge

Dr. Yunzhou Deng is a Marie Skłodowska-Curie Fellow at the Cavendish Laboratory, University of Cambridge. He received his BSc in 2016 and PhD in 2021 from Zhejiang University. He joined the Cavendish Laboratory as a Research Associate in 2023 and was subsequently awarded a Marie Skłodowska-Curie Fellowship working on advanced optical spectroscopy of optoelectronic devices. Dr. Deng’s research focuses on optoelectronic devices of colloidal nanocrystals and the fundamental charge dynamics under electrical excitations. He has published as (co-)first or (co-)corresponding author in journals including Nature, Nature Photonics, Nature Electronics, Nature Communications, Science Advances, and Advanced Materials.

Title

High-definition & deformable quantum dot light-emitting diodes via transfer printing

Abstract：

Excitation of quantum dots via electical input offer access to their bright and spectrally sharp emission in solution-processed electroluminescent devices, which show strong potential for displays, lighting and communication technologies. Understanding the electro-excitation process, i.e., the converstion of charge carriers into excited states, is of fundamental importance for advancing the device performancance and expanding device functionality. In this talk, I will present recent studies on charge dynamics of quantum-dot LED, and their roles in determining the yield, stability, and switching speed of electro-excitations. We highlight the critical influence of organic–inorganic interfaces in hybrid devices, as revealed by a variety of spectroscopic probes under operational conditions. The mechanistic insights provide new and generalisable guidance for device design, which significantly boosts the efficiency, operational lifetime, and modulation frequency of quantum-dot LEDs towards next-generation technologies such as solution-processed active-matrix display and visible-light communications.