15 Result(s)
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Article
Anti-corrosive and highly reversible zinc metal anode enabled by the phenolic resin coating
Aqueous zinc-ion batteries have attracted much attention due to their high theoretical capacity, low cost, high safety, and eco-friendly. However, challenges such as dendrite growth and side reactions severely...
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Article
Open AccessAnomalous Mode Transitions in High Power Distributed Bragg Reflector Quantum Cascade Lasers
In this paper, an anomalous spectral data of distributed Bragg reflector (DBR) quantum cascade lasers (QCLs) emitting around 7.6 μm is presented. The two-section DBR lasers, consisting of a gain section and an...
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Article
Open AccessDemonstration of High-Power and Stable Single-Mode in a Quantum Cascade Laser Using Buried Sampled Grating
High-power, low-threshold stable single-mode operation buried distributed feedback quantum cascade laser by incorporating sampled grating emitting at λ ~ 4.87 μm is demonstrated. The high continuous wave (CW) out...
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Article
Open AccessTapered Quantum Cascade Laser Arrays Integrated with Talbot Cavities
Power scaling in broad area quantum cascade laser (QCL) usually leads to the deterioration of the beam quality with an emission of multiple lobes far-field pattern. In this letter, we demonstrate a tapered QCL...
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Open AccessStable Single-Mode Operation of Distributed Feedback Quantum Cascade Laser by Optimized Reflectivity Facet Coatings
In this work, quantum cascade lasers (QCLs) based on strain compensation combined with two-phonon resonance design are presented. Distributed feedback (DFB) laser emitting at ~ 4.76 μm was fabricated through a...
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Open AccessLow Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers
In the present work, an ultra-low power consumption substrate-emitting distributed feedback (DFB) quantum cascade laser (QCL) was developed. The continuous-wave (CW) threshold power dissipation is reduced to 0...
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Article
Open AccessBipolar Resistive Switching Characteristics of HfO2/TiO2/HfO2 Trilayer-Structure RRAM Devices on Pt and TiN-Coated Substrates Fabricated by Atomic Layer Deposition
The HfO2/TiO2/HfO2 trilayer-structure resistive random access memory (RRAM) devices have been fabricated on Pt- and TiN-coated Si substrates with Pt top electrodes by atomic layer deposition (ALD). The effect of ...
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Open AccessHigh Efficiency, Low Power-Consumption DFB Quantum Cascade Lasers Without Lateral Regrowth
Very low power-consumption distributed feedback (DFB) quantum cascade lasers (QCLs) at the wavelength around 4.9 μm were fabricated by conventional process without lateral regrowth of InP:Fe or using sidewall ...
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Article
Open AccessSynaptic Plasticity and Learning Behaviors Mimicked in Single Inorganic Synapses of Pt/HfOx/ZnOx/TiN Memristive System
In this work, a kind of new memristor with the simple structure of Pt/HfOx/ZnOx/TiN was fabricated completely via combination of thermal-atomic layer deposition (TALD) and plasma-enhanced ALD (PEALD). The synapti...
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Article
Open AccessA Polarization-Dependent Normal Incident Quantum Cascade Detector Enhanced Via Metamaterial Resonators
The design, fabrication, and characterization of a polarization-dependent normal incident quantum cascade detector coupled via complementary split-ring metamaterial resonators in the infrared regime are presen...
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Open AccessNormal Incident Long Wave Infrared Quantum Dash Quantum Cascade Photodetector
We demonstrate a quantum dash quantum cascade photodetector (QDash-QCD) by incorporating self-assembled InAs quantum dashes into the active region of a long wave infrared QCD. Sensitive photoresponse to normal...
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Article
Open AccessThe Antibacterial Activity of Ta-doped ZnO Nanoparticles
A novel photocatalyst of Ta-doped ZnO nanoparticles was prepared by a modified Pechini-type method. The antimicrobial study of Ta-doped ZnO nanoparticles on several bacteria of Gram-positive Bacillus subtilis (B....
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Article
Open Access10-W pulsed operation of substrate emitting photonic-crystal quantum cascade laser with very small divergence
High-power broad area substrate emitting photonic-crystal distributed feedback (DFB) quantum cascade lasers (QCLs) emitting around 4.73 μm is reported. Two-dimensional centered rectangular photonic-crystal (CR...
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Open AccessExcellent resistive switching properties of atomic layer-deposited Al2O3/HfO2/Al2O3 trilayer structures for non-volatile memory applications
We have demonstrated a flexible resistive random access memory unit with trilayer structure by atomic layer deposition (ALD). The device unit is composed of Al2O3/HfO2/Al2O3-based functional stacks on TiN-coated ...
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Article
Open AccessStepwise mechanism and H2O-assisted hydrolysis in atomic layer deposition of SiO2 without a catalyst
Atomic layer deposition (ALD) is a powerful deposition technique for constructing uniform, conformal, and ultrathin films in microelectronics, photovoltaics, catalysis, energy storage, and conversion. The poss...
