Deciphering exciton-generation processes in quantum-dot electroluminescence

Y Deng, X Lin, W Fang, D Di, L Wang, RH Friend… - Nature …, 2020 - nature.com
Electroluminescence of colloidal nanocrystals promises a new generation of high-
performance and solution-processable light-emitting diodes. The operation of nanocrystal …

Significant lifetime enhancement in QLEDs by reducing interfacial charge accumulation via fluorine incorporation in the ZnO electron transport layer

DS Chung, T Davidson-Hall, G Cotella, Q Lyu… - Nano-Micro Letters, 2022 - Springer
ZnO nanoparticles are widely used for the electron transport layers (ETLs) of quantum dots
light emitting devices (QLEDs). In this work we show that incorporating fluorine (F) into the …

Electrically control amplified spontaneous emission in colloidal quantum dots

J Yu, S Shendre, W Koh, B Liu, M Li, S Hou… - Science …, 2019 - science.org
Colloidal quantum dots (CQDs) are highly promising materials for light amplification thanks
to their efficient photoluminescence, tunable emission wavelength and low-cost synthesis …

Changes in Hole and Electron Injection under Electrical Stress and the Rapid Electroluminescence Loss in Blue Quantum‐Dot Light‐Emitting Devices

A Ghorbani, J Chen, P Chun, Q Lyu, G Cotella, H Aziz - Small, 2024 - Wiley Online Library
Blue quantum dot light‐emitting devices (QLEDs) suffer from fast electroluminescence (EL)
loss when under electrical bias. Here, it is identified that the fast EL loss in blue QLEDs is not …

Positive aging in InP-based QD-LEDs encapsulated with epoxy: the role of thiol molecules and post-annealing treatment

H Jang, S Shin, M Lee, N Gwak, S Kim… - Journal of Materials …, 2023 - pubs.rsc.org
In this study, we uncover remarkable aging behavior in InP-based quantum dot light-emitting
diodes (QD-LEDs) encapsulated with epoxy, where the current efficiency increases over …

Charge balance control of quantum dot light emitting diodes with atomic layer deposited aluminum oxide interlayers

H **, H Moon, W Lee, H Hwangbo, SH Yong… - RSC …, 2019 - pubs.rsc.org
We developed a 1.0 nm thick aluminum oxide (Al2O3) interlayer as an electron blocking
layer to reduce leakage current and suppress exciton quenching induced by charge …

The impact of π-π stacking interactions on photo-physical properties of hydroxyanthraquinones

SS Zadeh, A Ebrahimi, A Shahraki - Spectrochimica Acta Part A: Molecular …, 2023 - Elsevier
The impact of π-π stacking interactions on photo-physical properties of
hydroxyanthraquinone (HA) has been investigated using the density functional (DFT) and …

Gate controlled excitonic emission in quantum dot thin films

IKMR Rahman, SZ Uddin, M Yeh… - Nano …, 2023 - ACS Publications
Formation of charged trions is detrimental to the luminescence quantum efficiency of
colloidal quantum dot (QD) thin films as they predominantly undergo nonradiative …

The impact of cation–π, anion–π, and CH–π interactions on the excited-state intramolecular proton transfer of 1, 4-dihydroxyanthraquinone

A Shahraki, A Ebrahimi, S Rezazadeh… - … Systems Design & …, 2021 - pubs.rsc.org
The impact of cation–π, anion–π, and CH–π interactions on the photophysical properties of
quinizarin have been investigated using the density functional theory (DFT) and time …

Dynamic excited-state intramolecular proton transfer mechanisms of two novel 3-hydroxyflavone-based chromophores in two different surroundings

J Hao, Y Yang - The Journal of Physical Chemistry A, 2019 - ACS Publications
The dynamic excited-state intramolecular proton transfer (ESIPT) mechanisms of two novel 3-
hydroxyflavone-based chromophores (1 and 2) in different surroundings (nonpolar …