Please use this identifier to cite or link to this item:
Title: Efficient generation of emissive many-body correlations in copper-doped colloidal quantum wells
Authors: Yu, Junhong
Sharma, Manoj
Li, Mingjie
Liu, Baiquan
Hernández-Martínez, Pedro Ludwig
Delikanli, Savas
Sharma, Ashma
Altintas, Yemliha
Hettiarachchi, Chathuranga
Sum, Tze Chien
Demir, Hilmi Volkan
Dang, Cuong
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2022
Source: Yu, J., Sharma, M., Li, M., Liu, B., Hernández-Martínez, P. L., Delikanli, S., Sharma, A., Altintas, Y., Hettiarachchi, C., Sum, T. C., Demir, H. V. & Dang, C. (2022). Efficient generation of emissive many-body correlations in copper-doped colloidal quantum wells. Cell Reports Physical Science, 3(9), 101049-.
Project: MOE-T2EP50121-0012 
Journal: Cell Reports Physical Science 
Abstract: Colloidal quantum wells (CQWs) provide an appealing platform to achieve emissive many-body correlations for novel optoelectronic devices, given that they act as hosts for strong carrier Coulomb interactions and present suppressed Auger recombination. However, the demonstrated high-order excitonic emission in CQWs requires ultrafast pumping with high excitation levels and can only be spectrally resolved at the single-particle level under cryogenic conditions. Here, through systematic investigation using static power-dependent emission spectroscopy and transient carrier dynamics, we show that Cu-doped CdSe CQWs exhibit continuous-wave-pumped high-order excitonic emission at room temperature with a large binding energy of ∼64 meV. We attribute this unique behavior to dopant excitons in which the ultralong lifetime and the highly localized wavefunction facilitate the formation of many-body correlations. The spectrally resolved high-order excitonic emission generated at power levels compatible with solar irradiation and electrical injection might pave the way for novel solution-processed solid-state devices.
ISSN: 2666-3864
DOI: 10.1016/j.xcrp.2022.101049
Schools: School of Electrical and Electronic Engineering 
School of Physical and Mathematical Sciences 
Research Centres: LUMINOUS! Centre of Excellence for Semiconductor Lighting & Displays 
Centre for OptoElectronics and Biophotonics
The Photonics Institute 
CNRS International NTU THALES Research Alliances 
Rights: © 2022 The Authors. This is an open access article under the CC BY-NC-ND license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
SPMS Journal Articles

Files in This Item:
File Description SizeFormat 
1-s2.0-S2666386422003435-main.pdf2.45 MBAdobe PDFThumbnail

Citations 50

Updated on Nov 30, 2023

Web of ScienceTM
Citations 50

Updated on Oct 31, 2023

Page view(s)

Updated on Dec 6, 2023


Updated on Dec 6, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.