Influence of Light-Matter Interaction on Efficiency of Quantum-Dot Light-Emitting Diodes
Light-matter interaction can affect the radiative decay rate of excitons and thus the emission quantum yield (QY) of quantum dots (QDs). In this work, light-matter interaction and outcoupling efficiency of QD light-emitting diodes with different structures are investigated experimentally and theoretically. We show that the external quantum efficiency (EQE) of top-emitting devices is higher than that of the bottom-emitting devices, which is mainly due to the stronger light-matter interaction and higher light outcoupling efficiency of the top-emitting structures. In addition, we show that the QY enhancement induced by light-matter interaction is more significant for low-QY QDs. Our results suggest that top-emitting structures are more powerful for improving the EQE of devices built with low-QY QDs.
NI Journal Papers ; NI论文
First ; Corresponding
 ; [JCYJ20210324105400002] ; [JCYJ20220530113809022] ; [2020ZDZX3062]
|WOS Research Area|
Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical
|WOS Accession No|
Cited Times [WOS]:4
|Document Type||Journal Article|
|Department||Department of Electrical and Electronic Engineering|
Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China
|First Author Affilication||Department of Electrical and Electronic Engineering|
|Corresponding Author Affilication||Department of Electrical and Electronic Engineering|
|First Author's First Affilication||Department of Electrical and Electronic Engineering|
Tian，Fengshou,Yuan，Cuixia,Chen，Shuming. Influence of Light-Matter Interaction on Efficiency of Quantum-Dot Light-Emitting Diodes[J]. Journal of Physical Chemistry Letters,2022,13(44):10312-10317.
Tian，Fengshou,Yuan，Cuixia,&Chen，Shuming.(2022).Influence of Light-Matter Interaction on Efficiency of Quantum-Dot Light-Emitting Diodes.Journal of Physical Chemistry Letters,13(44),10312-10317.
Tian，Fengshou,et al."Influence of Light-Matter Interaction on Efficiency of Quantum-Dot Light-Emitting Diodes".Journal of Physical Chemistry Letters 13.44(2022):10312-10317.
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