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学者姓名：陈伟国
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Abstract ：
Quantum dot light-emitting diodes (QLEDs) are emerging as promising candidates for next-generation displays, with the current efficiency and stability of both red and green QLEDs meeting display requirements. However, the efficiency and stability of blue QLEDs, particularly pure blue iterations, significantly lag behind those of their red and green counterparts, thus hindering the widespread adoption of full-color QLEDs. Here, we introduce a strategy to improve the efficiency and stability of pure blue zinc selenide (ZnSe) QLEDs by adding a new ionic liquid (IL) salt, 1-butyl-3-methylimidazolium phosphorus hexafluoride (BMIMPF6), into the hole transport layer (HTL). This IL salt acts as an effective p-dopant, enhancing charge mobility while also increasing the surface potentials of the HTL for better alignment of energy bands at the interface. This results in a significant improvement in device performance, with the external quantum efficiency (EQE) increasing from 4.90% to 7.02%, setting a high performance for cadmium-free pure-blue ZnSe QLEDs. Additionally, the device's operational lifetime, measured as the time taken for luminance to drop to 50% (T50) at 100 cd m−2, sees a remarkable six-fold increase, reaching 177 hours. Our work represents a significant advancement in developing cadmium-free pure-blue ZnSe QLEDs and offers valuable insights for designing efficient and stable quantum dot-based displays. © 2024 The Royal Society of Chemistry.
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| GB/T 7714 | Lin, L. , Ye, X. , Luo, Z. et al. Enhancing the efficiency and stability of ZnSe pure blue quantum dot light-emitting diodes via ionic liquid doping [J]. | Journal of Materials Chemistry C , 2024 , 12 (28) : 10408-10416 . |
| MLA | Lin, L. et al. "Enhancing the efficiency and stability of ZnSe pure blue quantum dot light-emitting diodes via ionic liquid doping" . | Journal of Materials Chemistry C 12 . 28 (2024) : 10408-10416 . |
| APA | Lin, L. , Ye, X. , Luo, Z. , Chen, W. , Guo, T. , Hu, H. et al. Enhancing the efficiency and stability of ZnSe pure blue quantum dot light-emitting diodes via ionic liquid doping . | Journal of Materials Chemistry C , 2024 , 12 (28) , 10408-10416 . |
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Abstract ：
In the rapidly evolving Metaverse, enhancing user immersion through clear, lifelike, and ergonomic near-eye displays is crucial. However, existing rigid near-eye displays encounter challenges such as insufficient resolution, limited adaptability, and suboptimal visual experiences. To address these issues, a strategic shift is proposed to flexible ultrahigh-resolution (FUR) displays, which combine ultrahigh resolution with the ability to conform to individual eye curvature for a more realistic field of view. FUR quantum dot light-emitting diodes (FUR-QLEDs) featuring 9072 pixels per inch (PPI), a maximum external quantum efficiency (EQE) of 15.7%, and peak brightness of 15 163 cd m−2 are achieved through the integration of nanoimprinting and surface modification technologies. The degradation mechanism of FUR-QLEDs under bending fatigue tests is investigated, identifying the high elastic modulus of the insulating patterned film as the primary cause through theoretical analysis, simulation, and experimental characterizations. Optimizing the elastic modulus of the patterned film enabled to maintain 91% of its initial brightness after 400 bending cycles, demonstrating exceptional bending stability and durability of FUR-QLEDs. © 2024 Wiley-VCH GmbH.
Keyword ：
bending stability bending stability durability durability flexible flexible high performance high performance high-resolution high-resolution QLEDs QLEDs
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| GB/T 7714 | Lin, L. , Dong, Z. , Wang, J. et al. Flexible Ultrahigh-Resolution Quantum-Dot Light-Emitting Diodes [J]. | Advanced Functional Materials , 2024 , 34 (48) . |
| MLA | Lin, L. et al. "Flexible Ultrahigh-Resolution Quantum-Dot Light-Emitting Diodes" . | Advanced Functional Materials 34 . 48 (2024) . |
| APA | Lin, L. , Dong, Z. , Wang, J. , Hu, H. , Chen, W. , Guo, T. et al. Flexible Ultrahigh-Resolution Quantum-Dot Light-Emitting Diodes . | Advanced Functional Materials , 2024 , 34 (48) . |
| Export to | NoteExpress RIS BibTex |
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Abstract ：
Quantum dot light-emitting diodes (QLEDs) are emerging as promising candidates for next-generation displays, with the current efficiency and stability of both red and green QLEDs meeting display requirements. However, the efficiency and stability of blue QLEDs, particularly pure blue iterations, significantly lag behind those of their red and green counterparts, thus hindering the widespread adoption of full-color QLEDs. Here, we introduce a strategy to improve the efficiency and stability of pure blue zinc selenide (ZnSe) QLEDs by adding a new ionic liquid (IL) salt, 1-butyl-3-methylimidazolium phosphorus hexafluoride (BMIMPF6), into the hole transport layer (HTL). This IL salt acts as an effective p-dopant, enhancing charge mobility while also increasing the surface potentials of the HTL for better alignment of energy bands at the interface. This results in a significant improvement in device performance, with the external quantum efficiency (EQE) increasing from 4.90% to 7.02%, setting a high performance for cadmium-free pure-blue ZnSe QLEDs. Additionally, the device's operational lifetime, measured as the time taken for luminance to drop to 50% (T-50) at 100 cd m(-2), sees a remarkable six-fold increase, reaching 177 hours. Our work represents a significant advancement in developing cadmium-free pure-blue ZnSe QLEDs and offers valuable insights for designing efficient and stable quantum dot-based displays.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Lin, Lihua , Ye, Xiaoxue , Luo, Zhiqi et al. Enhancing the efficiency and stability of ZnSe pure blue quantum dot light-emitting diodes via ionic liquid doping [J]. | JOURNAL OF MATERIALS CHEMISTRY C , 2024 , 12 (28) : 10408-10416 . |
| MLA | Lin, Lihua et al. "Enhancing the efficiency and stability of ZnSe pure blue quantum dot light-emitting diodes via ionic liquid doping" . | JOURNAL OF MATERIALS CHEMISTRY C 12 . 28 (2024) : 10408-10416 . |
| APA | Lin, Lihua , Ye, Xiaoxue , Luo, Zhiqi , Chen, Weiguo , Guo, Tailiang , Hu, Hailong et al. Enhancing the efficiency and stability of ZnSe pure blue quantum dot light-emitting diodes via ionic liquid doping . | JOURNAL OF MATERIALS CHEMISTRY C , 2024 , 12 (28) , 10408-10416 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
In the rapidly evolving Metaverse, enhancing user immersion through clear, lifelike, and ergonomic near-eye displays is crucial. However, existing rigid near-eye displays encounter challenges such as insufficient resolution, limited adaptability, and suboptimal visual experiences. To address these issues, a strategic shift is proposed to flexible ultrahigh-resolution (FUR) displays, which combine ultrahigh resolution with the ability to conform to individual eye curvature for a more realistic field of view. FUR quantum dot light-emitting diodes (FUR-QLEDs) featuring 9072 pixels per inch (PPI), a maximum external quantum efficiency (EQE) of 15.7%, and peak brightness of 15 163 cd m-2 are achieved through the integration of nanoimprinting and surface modification technologies. The degradation mechanism of FUR-QLEDs under bending fatigue tests is investigated, identifying the high elastic modulus of the insulating patterned film as the primary cause through theoretical analysis, simulation, and experimental characterizations. Optimizing the elastic modulus of the patterned film enabled to maintain 91% of its initial brightness after 400 bending cycles, demonstrating exceptional bending stability and durability of FUR-QLEDs. Describing the advancement of flexible ultrahigh-resolution-quantum dot light-emitting diodes and their integration with nanoimprinting and surface modification technologies aimed at mitigating the limitations of contemporary near-eye display technologies in virtual reality and augmented reality immersion within the dynamic context of the Metaverse, thereby augmenting user experiences. image
Keyword ：
bending stability bending stability durability durability flexible flexible high performance high performance high-resolution high-resolution QLEDs QLEDs
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Lin, Lihua , Dong, Zhihua , Wang, Jie et al. Flexible Ultrahigh-Resolution Quantum-Dot Light-Emitting Diodes [J]. | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (48) . |
| MLA | Lin, Lihua et al. "Flexible Ultrahigh-Resolution Quantum-Dot Light-Emitting Diodes" . | ADVANCED FUNCTIONAL MATERIALS 34 . 48 (2024) . |
| APA | Lin, Lihua , Dong, Zhihua , Wang, Jie , Hu, Hailong , Chen, Weiguo , Guo, Tailiang et al. Flexible Ultrahigh-Resolution Quantum-Dot Light-Emitting Diodes . | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (48) . |
| Export to | NoteExpress RIS BibTex |
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