Mingyin Zhang

Hexagonal boron nitride nanosheet Film-Veiled Ag nanoparticles for ultrasensitive and long-term stable SERS substrates under visible and UV excitation

Mingyin Zhang, Qifan Zhang, Dongjie Zhang, Zhenhuan Tian et autres

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Large‐Area Self‐Assembled Hexagonal Boron Nitride Nanosheet Films for Ultralow Dark Current Vacuum‐Ultraviolet Photodetectors

Qifan Zhang, Qiang Li, Ransheng Chen, Mingyin Zhang et autres

Abstract Hexagonal boron nitride (hBN) is one of the most promising candidates for vacuum‐ultraviolet photodetectors (VUV PDs). However, the efficient and low‐cost fabrication of large‐area hBN‐PDs still encounters challenges. Herein, a cost‐effective route is proposed for fast and scalable fabrication of high‐performance …

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Improving optical coherence of light-emitting diodes by surface plasmons via shallow-etched conic pit array

Mingyin Zhang, Zhenhuan Tian, Xuzheng Wang, Feng Li et autres

We propose the coupling of multiple quantum wells and surface plasmons can improve coherence of light emitted from LED wafers, as evidenced herein by a shallow-etched conic pit array with evaporated Ag (V-Ag) on a GaN-based LED wafer. The improvement in spatial …

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High-performance flexible UV-photodetector via self-assembled ZnO films

Qifan Zhang, Qiang Li, Wannian Fang, Mingyin Zhang et autres

Abstract Zinc oxide (ZnO) is one of the most attractive materials for the preparation of ultraviolet photodetectors (UV PDs). However, the high leakage current and slow response speed significantly limit the practical applications of ZnO-based PDs. In this study, the fabrication of …

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Simultaneously improve the Purcell factor and internal quantum efficiency of light-emitting diodes via surface plasmon by metal conic structure

Zhenhuan Tian, Mingyin Zhang, Xuzheng Wang, Qiang Li et autres

Recent advances in the development of surface plasmons (SPs) enhanced LED have provided a great opportunity to enhance either the internal quantum efficiency (IQE) or the spontaneous emission rate (SE) by employing specific metal structures. However, it is still challenging to simultaneously …

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Phase transition and bandgap engineering in B1-Al N alloys: DFT calculations and experiments

Qifan Zhang, Qiang Li, Weihan Zhang, Haoran Zhang et autres

BAlN is a promising ultrawide bandgap semiconductor, but systematic studies of its bandgap are scarce. Here, bandgap engineering of BAlN containing the phase transition factor (from hexagonal to wurtzite structures) has been investigated by DFT calculations and verified experimentally. The calculated bandgap …

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Research progress of peroxiredoxingene in crustaceans

Hui Li, Wei Feng, Junjie Yu, Mingyin Zhang et autres

Peroxiredoxin (Prx) belongs to the superfamily of antioxidant proteins, which widely exists in eukaryotes and prokaryotes, and plays an important role in innate immunity. At present, there are a few researches on the Prx genes in crustaceans, and only partial subtypes of …

Phosphor-free microLEDs with ultrafast and broadband features for visible light communications

Zhenhuan Tian, Qiang Li, Xuzheng Wang, Mingyin Zhang et autres

Modulation bandwidth and the emission region are essential features for the widespread use of visible light communications (VLC). This paper addresses the contradictory requirements to achieve broadband and proposes ultrafast, asymmetric pyramids grown on adjacent deep concave holes via lateral overgrowth. Multicolor …

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Geographical Locations and Market Efficiency of Listed Companies—Analysis Based on the Chinese Market

Ying Ren, Bo‐Wen Pan, Chunyi Wang, Ruoyu Yan et autres

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Enhanced coupling efficiency and electrical property in surface plasmon-enhanced light-emitting diodes with the tapered Ag structure

Xuzheng Wang, Zhenhuan Tian, Mingyin Zhang, Qiang Li et autres

We design, fabricate and analyze plasmon-enhanced LEDs with the tapered Ag structure that significantly increases plasmonic coupling efficiency at a coupling distance far beyond the penetration depth. The electroluminescence intensity showed a 16-fold increase compared with planar LEDs with a coupling distance …

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Serum VEGF: Diagnostic Value of Acute Coronary Syndrome from Stable Angina Pectoris and Prognostic Value of Coronary Artery Disease

Anan Huang, Xin Qi, Yameng Cui, Yulin Wu et autres

Background. Although the level of serum vascular endothelial growth factor (VEGF) is elevated in coronary artery disease (CAD) patients, its potential role in acute coronary syndrome (ACS) or stable angina pectoris (SAP) patients remains unclear. Objectives. To evaluate diagnostic accuracy of serum …

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Non-HDL-c/TC: A Novel Lipid-Related Marker in the Assessment of Severity of Coronary Artery Lesions and Cardiovascular Outcomes

Anan Huang, Xin Qi, Liping Wei, Mingyin Zhang et autres

Background. Non-high-density lipoprotein cholesterol (non-HDL-c) predicts the severity of coronary artery lesions in patients not treated with statin. The association between non-HDL-c and severity of coronary artery lesions in patients treated with lipid-lowering therapy has been unknown. Hypothesis. We hypothesize a novel …

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