High‐performance, solution‐processed, and insulating‐layer‐free light‐emitting diodes based on colloidal quantum dots

Z Zhang, Y Ye, C Pu, Y Deng, X Dai, X Chen… - Advanced …, 2018 - Wiley Online Library
Quantum‐dot light‐emitting diodes (QLEDs) may combine superior properties of colloidal
quantum dots (QDs) and advantages of solution‐based fabrication techniques to realize …

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 …

Engineering Auger recombination in colloidal quantum dots via dielectric screening

X Hou, J Kang, H Qin, X Chen, J Ma, J Zhou… - Nature …, 2019 - nature.com
Auger recombination is the main non-radiative decay pathway for multi-carrier states of
colloidal quantum dots, which affects performance of most of their optical and optoelectronic …

Unraveling mechanisms of highly efficient yet stable electrochemiluminescence from quantum dots

Z Cao, C Li, Y Shu, M Zhu, B Su, H Qin… - Journal of the American …, 2023 - ACS Publications
With CdSe/CdS/ZnS core/shell/shell quantum dots (QDs) as the model system, time-and
potential-resolved spectroelectrochemical measurements are successfully applied for …

Enhancing dielectric screening for auger suppression in CdSe/CdS quantum dots by epitaxial growth of ZnS shell

X Hou, H Qin, X Peng - Nano Letters, 2021 - ACS Publications
Auger recombination is the main nonradiative process in multicarrier states of high-quality
quantum dots (QDs). For the most-studied CdSe/CdS core/shell QDs, we effectively reduce …

Increasing photoluminescence quantum yield by nanophotonic design of quantum-confined halide perovskite nanowire arrays

D Zhang, L Gu, Q Zhang, Y Lin, DH Lien, M Kam… - Nano …, 2019 - ACS Publications
High-photoluminescence quantum yield (PLQY) is required to reach optimal performance in
solar cells, lasers, and light-emitting diodes (LEDs). Typically, PLQY can be increased by …

Oxygen stabilizes photoluminescence of CdSe/CdS core/shell quantum dots via deionization

Z Hu, S Liu, H Qin, J Zhou, X Peng - Journal of the American …, 2020 - ACS Publications
By taking advantage of well-defined spectroscopic signatures of high-quality CdSe/CdS
core/shell QDs, the effects of oxygen on photoluminescence (PL) of QDs were studied …

Single quantum dot spectroscopy for exciton dynamics

B Li, G Zhang, Y Gao, X Chen, R Chen, C Qin, J Hu… - Nano Research, 2024 - Springer
Colloidal semiconductor quantum dots (QDs) exhibit broadband light absorption,
continuously tunable narrowband emission, and high photoluminescence quantum yields …

Identifying the Surface Charges and their Impact on Carrier Dynamics in Quantum‐Dot Light‐Emitting Diodes by Impedance Spectroscopy

Z Wu, P Liu, X Qu, J Ma, W Liu, B Xu… - Advanced Optical …, 2021 - Wiley Online Library
The carrier injection and charge transfer at interfaces in quantum dot light‐emitting diodes
(QLEDs) are commonly evaluated based on the energy levels of different functional layers …

Single-particle electroluminescence of CsPbBr3 perovskite nanocrystals reveals particle-selective recombination and blinking as key efficiency factors

DK Sharma, S Hirata, M Vacha - Nature communications, 2019 - nature.com
Halide perovskites nanocrystals (NCs) are being explored as promising materials for
optoelectronic applications, such as light-emitting devices or lasers. However …