Shelf-Stable Green and Blue Quantum Dot Light-Emitting Diodes with High Efficiencies

Luo, Xiao; He, Siyu; Chen, Desui; Sun, Guolong; Zeng, Jiejun; Zhu, Xitong; Jin, Wangxiao; Lu, Xiuyuan; Hao, Yanlei; Jin, Yizheng

doi:10.1021/acs.jpclett.4c01594

J. Phys. Chem. Lett.

2024

DOI: 10.1021/acs.jpclett.4c01594

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Shelf-Stable Green and Blue Quantum Dot Light-Emitting Diodes with High Efficiencies

Xiao Luo,

Siyu He,

Desui Chen

et al.

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Cited by 4 publications

References 35 publications

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A novel type of quantum-delivery system (salicylic acid conjugation based on ZnO quantum dots) alleviates the bacterial fruit blotch disease of melon plants by activating defense response

Wang,

Qian,

Sun

et al. 2024

Chemical Engineering Journal

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A novel type of quantum-delivery system (salicylic acid conjugation based on ZnO quantum dots) alleviates the bacterial fruit blotch disease of melon plants by activating defense response

Wang,

Qian,

Sun

et al. 2024

Chemical Engineering Journal

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Atomic Layer-Deposited Silane Coupling Agent for Interface Passivation of Quantum Dot Light-Emitting Diodes

Ding,

Song,

Wang

et al. 2024

J. Phys. Chem. Lett.

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Inserting an insulating layer between the charge transport layer (CTL) and quantum dot emitting layer (QDL) is widely used in improving the performance of quantum dot light-emitting diodes (QLEDs). However, the additional layer inevitably leads to energy loss and joule heat. Herein, a monolayer silane coupling agent is used to modify the said interfaces via the self-limiting adsorption effect. Because the ultrathin layers induce negligible series resistance to the device, they can partially passivate the interfacial defects on the electron transport side and help confine the electrons within the QDL on the hole transport side. These interfacial modifications can not only suppress the nonradiative recombination but also slow down the aging of the hole transport layer. The findings here underline a low-temperature adsorption-based strategy for effective interfacial modification which can be used in any layer-by-layer device structures.

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Blue Quantum Dot Light-Emitting Diodes toward Full-Color Displays: Materials, Devices, and Large-Scale Fabrication

Cai,

Bai,

et al. 2024

Nano Lett.

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Quantum dots (QDs) light-emitting diodes (QLEDs) are gaining significant interest for the next generation of display and lighting applications because of their wide color gamut, cost-effective solution processability, and good stability. The last decades have witnessed rapid advances in improving their efficiency and lifetime. So far, among the three primary colors of QLEDs devices, the performance of blue QLEDs is considerably inferior to that of green and red ones including Cd-based and Cd-free devices, which is a key bottleneck hindering QLEDs' application. This mini-review describes recent advances of blue Cd-based and Cd-free QLEDs from materials to device engineering, in particular, elaborating the essential factors that limit their performance and the degradation mechanisms. We also discuss the progress and challenges of large-scale displays. Finally, we propose possible approaches to improve the performance of the blue QLEDs, including QDs materials and device architecture optimization, and summarize potential applications in this stimulating field.

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Shelf-Stable Green and Blue Quantum Dot Light-Emitting Diodes with High Efficiencies

Cited by 4 publications

References 35 publications

A novel type of quantum-delivery system (salicylic acid conjugation based on ZnO quantum dots) alleviates the bacterial fruit blotch disease of melon plants by activating defense response

A novel type of quantum-delivery system (salicylic acid conjugation based on ZnO quantum dots) alleviates the bacterial fruit blotch disease of melon plants by activating defense response

Atomic Layer-Deposited Silane Coupling Agent for Interface Passivation of Quantum Dot Light-Emitting Diodes

Blue Quantum Dot Light-Emitting Diodes toward Full-Color Displays: Materials, Devices, and Large-Scale Fabrication

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