Localized Surface Plasmon Enhanced All-Inorganic Perovskite Quantum Dot Light-Emitting Diodes Based on Coaxial Core/Shell Heterojunction Architecture

doi:10.1002/adfm.201707031

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	Localized Surface Plasmon Enhanced All-Inorganic Perovskite Quantum Dot Light-Emitting Diodes Based on Coaxial Core/Shell Heterojunction Architecture
	Shi, Z. F.; Li, Y.; Li, S.; Li, X. J.; Wu, D.; Xu, T. T.; Tian, Y. T.; Chen, Y. S.; Zhang, Y. T.; Zhang, B. L.; Shan, C. X.; Du, G. T.
	2018
发表期刊	Advanced Functional Materials
ISSN	1616-301X
卷号	28 期号:20 页码:11
摘要	This work presents a strategy of combining the concepts of localized surface plasmons (LSPs) and core/shell nanostructure configuration in a single perovskite light-emitting diode (PeLED) to addresses simultaneously the emission efficiency and stability issues facing current PeLEDs' challenges. Wide bandgap n-ZnO nanowires and p-NiO are employed as the carrier injectors, and also the bottom/upper protection layers to construct coaxial core/shell heterostructured CsPbBr3 quantum dots LEDs. Through embedding plasmonic Au nanoparticles into the device and thickness optimization of the MgZnO spacer layer, an emission enhancement ratio of 1.55 is achieved. The best-performing plasmonic PeLED reaches up a luminance of 10206 cd m(-2), an external quantum efficiency of approximate to 4.626%, and a current efficiency of 8.736 cd A(-1). The underlying mechanisms for electroluminescence enhancement are associated with the increased spontaneous emission rate and improved internal quantum efficiency induced by exciton-LSP coupling. More importantly, the proposed PeLEDs, even without encapsulation, present a substantially improved operation stability against water and oxygen degradation (30-day storage in air ambient, 85% humidity) compared with any previous reports. It is believed that the experimental results obtained will provide an effective strategy to enhance the performance of PeLEDs, which may push forward the application of such kind of LEDs.
关键词	core/shell architectures light-emitting diodes perovskite plasmonic nanoparticles stability turn-on voltage high-efficiency solar-cells ultraviolet emission high-performance nanorod arrays nanoparticles stability emitters lasers Chemistry Science & Technology - Other Topics Materials Science Physics
DOI	10.1002/adfm.201707031
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61047
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Shi, Z. F.,Li, Y.,Li, S.,et al. Localized Surface Plasmon Enhanced All-Inorganic Perovskite Quantum Dot Light-Emitting Diodes Based on Coaxial Core/Shell Heterojunction Architecture[J]. Advanced Functional Materials,2018,28(20):11.
APA	Shi, Z. F..,Li, Y..,Li, S..,Li, X. J..,Wu, D..,...&Du, G. T..(2018).Localized Surface Plasmon Enhanced All-Inorganic Perovskite Quantum Dot Light-Emitting Diodes Based on Coaxial Core/Shell Heterojunction Architecture.Advanced Functional Materials,28(20),11.
MLA	Shi, Z. F.,et al."Localized Surface Plasmon Enhanced All-Inorganic Perovskite Quantum Dot Light-Emitting Diodes Based on Coaxial Core/Shell Heterojunction Architecture".Advanced Functional Materials 28.20(2018):11.

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