Yunyi Wu
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View article: MELRSNet for accelerating the exploration of novel ultrawide bandgap semiconductors
MELRSNet for accelerating the exploration of novel ultrawide bandgap semiconductors Open
Ultrawide bandgap (UWBG) semiconductors, with bandgaps exceeding 3.4 eV of gallium nitride, offer the potential to overcome the limitations of conventional semiconductors and drive innovations in electronics and photovoltaics. However, dis…
View article: Stabilizing oxygen vacancies and promoting electrostrain in lead-free potassium niobate-based piezoelectrics over wide temperature ranges
Stabilizing oxygen vacancies and promoting electrostrain in lead-free potassium niobate-based piezoelectrics over wide temperature ranges Open
Piezoelectric ceramics provide high strain and large driving forces in actuators. A large electrostrain can be realized by the introduction of point defects such as vacancies, interstitial defects, and substitution defects. With Mn doping,…
View article: A Prediction of All‐Inorganic Lead‐Free Halide Perovskites for Photovoltaic Application: Rb<sub>3</sub>Mo<sub>2</sub>Br<sub>9</sub> and Rb<sub>3</sub>Mo<sub>2</sub>Cl<sub>9</sub>
A Prediction of All‐Inorganic Lead‐Free Halide Perovskites for Photovoltaic Application: Rb<sub>3</sub>Mo<sub>2</sub>Br<sub>9</sub> and Rb<sub>3</sub>Mo<sub>2</sub>Cl<sub>9</sub> Open
Lead‐based organic‐inorganic hybrid perovskites show promise as photovoltaic materials due to their high energy conversion efficiencies. However, concerns regarding lead toxicity and the poor environmental and operational stability of the …
View article: Combinatorial optimization of perovskite-based ferroelectric ceramics for energy storage applications
Combinatorial optimization of perovskite-based ferroelectric ceramics for energy storage applications Open
With the increasing impacts of climate change and resource depletion, dielectric capacitors, with their exceptional stability, fast charging and discharging rates, and ability to operate under more extreme conditions, are emerging as promi…
View article: Solidification and Super-cooling Behaviors of Silica Nanofluids based on the Molten Eutectic Nitrate Salt
Solidification and Super-cooling Behaviors of Silica Nanofluids based on the Molten Eutectic Nitrate Salt Open
SiO 2 nano-powders with different particle sizes were used to fabricate nitrate-based nanofluids with the nano-particle concentration arranged from 0.5-4.0 wt.%. The crystallization process of the as-prepared composite and the influence of…
View article: Transient current distribution among elements in metallized film capacitor for converter valves
Transient current distribution among elements in metallized film capacitor for converter valves Open
The metalized film capacitors (MFC) in converter valves are subjected to high-frequency currents under the action of power electronic switching, which will cause large differences in currents among capacitor elements inside MFC and serious…
View article: Multi‐stage stochastic long‐term planning of grid‐connected hydrogen‐based energy system based on improved SDDIP
Multi‐stage stochastic long‐term planning of grid‐connected hydrogen‐based energy system based on improved SDDIP Open
Hydrogen‐based energy systems (HESs) have shown great potential to promote the process of decarbonization. Conventional studies mainly focus on the sizing and operation of HESs in a determined static situation, and the dynamic planning mod…
View article: Design of Compensation Mechanism for Energy Storage Participating in Auxiliary Services and Analysis of Its Investment Economics
Design of Compensation Mechanism for Energy Storage Participating in Auxiliary Services and Analysis of Its Investment Economics Open
Energy storage can effectively solve the problems of insufficient power grid regulation capacity and increasing difficulty in frequency stabilization caused by a high proportion of renewable energy. However, China's current market mechanis…
View article: Ultra Uniform Pb0.865La0.09(Zr0.65Ti0.35)O3 Thin Films with Tunable Optical Properties Fabricated via Pulsed Laser Deposition
Ultra Uniform Pb0.865La0.09(Zr0.65Ti0.35)O3 Thin Films with Tunable Optical Properties Fabricated via Pulsed Laser Deposition Open
Ferroelectric thin films have been utilized in a wide range of electronic and optical applications, in which their morphologies and properties can be inherently tuned by a qualitative control during growth. In this work, we demonstrate the…
View article: Effects of stacking method and strain on the electronic properties of the few-layer group-IVA monochalcogenide heterojunctions
Effects of stacking method and strain on the electronic properties of the few-layer group-IVA monochalcogenide heterojunctions Open
We studied the effect of stacking method and biaxial strain on the electronic properties of the few-layer group-IV monochalcogenides heterojunction.
View article: Temperature- and frequency-dependent dielectric response and energy-storage performance in high (100)-oriented Sc doped (Na<sub>0.85</sub>K<sub>0.15</sub>)<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub> films
Temperature- and frequency-dependent dielectric response and energy-storage performance in high (100)-oriented Sc doped (Na<sub>0.85</sub>K<sub>0.15</sub>)<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub> films Open
Highly (100)-oriented (Na0.85K0.15)0.5Bi0.5Ti0.75Sc0.25O3 (NKBT-Sc) films with thicknesses ranging from about 460 to 860 nm were grown by utilizing TiO2 layers engineering.
View article: Thickness- and temperature-dependent structural and electromechanical properties of (100)-oriented Sc-doped (Na<sub>0.85</sub>K<sub>0.15</sub>)<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub> ferroelectric films
Thickness- and temperature-dependent structural and electromechanical properties of (100)-oriented Sc-doped (Na<sub>0.85</sub>K<sub>0.15</sub>)<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub> ferroelectric films Open
NKBT-Sc film thickness- and LNO layer insertion mode-dependent structural and electromechanical properties of the composite films were investigated.
View article: Influences of Stone–Wales defects on the structure, stability and electronic properties of antimonene: A first principle study
Influences of Stone–Wales defects on the structure, stability and electronic properties of antimonene: A first principle study Open
Defects are inevitably present in materials, and their existence strongly affects the fundamental physical properties of 2D materials. Here, we performed first-principles calculations to study the structural and electronic properties of an…
View article: Investigation of thickness dependence of electric properties of sol&ndash;gel BNT&ndash;BT thin films with stepwise crystallization
Investigation of thickness dependence of electric properties of sol–gel BNT–BT thin films with stepwise crystallization Open
6% BaTiO3-doped Na0.5Bi0.5TiO3 (BNT–BT) lead-free piezoelectric thin films with the composition around morphotropic phase boundary (MPB) were spin-coated via an economical water-based sol–gel method on Pt(111)/Ti/SiO2/Si substrates. High-q…