65 Result(s)
within
Wentao **a
Characterization and Evaluation of Materials
Optical and Electronic Materials
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Article
Controllable preparation and properties of boron-doped carbon aerogel composites
Carbon aerogels represent a highly promising category of carbon materials with extensive application prospects in insulation, adsorption, catalysis, and battery technologies. Nevertheless, the current preparat...
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Article
Regulating the surface morphology and improving the thermochromic properties of VO2 films by introducing Cu-Ag and Cu-Zr nanoparticles into the VO2/VO2/VO2 structure
In this work, Cu-Ag and Cu-Zr bimetallic nanoparticles (NPs) were embedded into VO2/VO2/VO2 tri-layer films by using pulsed laser deposition. The results showed that Cu-Ag and Cu-Zr NPs have a significant regulat...
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Article
Construction of rod-like micro/nano structure and its effects on the electrochemical energy storage performance of lithium-rich manganese-based cathode material
By adjusting the oxidant amount and hydrothermal reaction temperature, a rod-shaped MnO2 sample was formed. Taking it as the manganese source, a Li-rich manganese-based cathode material (LMCM) with obvious rod-li...
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Article
Tunable lattice thermal conductivity of 2D MoSe2 via biaxial strain: a comparative study between the monolayer and bilayer
Strain engineering has been proved to be an effective approach to modulate various physical properties in two-dimensional (2D) materials with flexible structures. In this work, based on first-principles calcul...
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Open AccessThe ultra-high electric breakdown strength and superior energy storage properties of (Bi0.2Na0.2K0.2La0.2Sr0.2)TiO3 high-entropy ferroelectric thin films
The electric breakdown strength (Eb) is an important factor that determines the practical applications of dielectric materials in electrical energy storage and electronics. However, there is a tradeoff between Eb
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Article
Relaxor regulation and enhancement of energy storage properties in bi-modified Sr2NaNb5O15-based tetragonal tungsten bronze ceramics
Dielectric capacitors based on the relaxor ferroelectric ceramic with large discharge power density offer significant advantages for advanced pulsed power systems. Tungsten bronze-based relaxor ceramics have e...
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Article
The sensitivity and specificity of carbon dot species on the detection of chromium metal ions
Rapid industrialization has brought about Cr6+ pollution, and the excellent performance of carbon dots (CDs) provides a new idea for preparing environmentally friendly nanoprobes for Cr6+ detection. In the presen...
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Electrochemical performance enhancement of tremella-shape Li4Ti5 − xAlxO12 anode material for lithium-ion batteries
The Li4Ti5−xAlxO12 samples with tremella-shape were synthesized via a hydrothermal method at 550 °C and used as anode material in lithium-ion batteries. The XRD results revealed all as-prepared Li4Ti5−xAlxO12 sam...
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Article
Polyvinylammonium-immobilized FAPbI3 Perovskite Grains for Flexible Fibrous Woven RRAM Array
Woven resistive random access memory (RRAM) is a promising subject in flexible wearable electronic devices. In this work, polyvinylammonium iodate (PVAm·HI) is added to the FAPbI3 perovskite precursor solution to...
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Article
Two-dimensional sandwich-like heterostructures of amorphous VOx/MXene as freestanding cathode materials with superior electrochemical performance for aqueous zinc-ion batteries
Although vanadium-based compounds are considered to be reliable zinc storage materials due to their high theoretical specific capacity, notorious poor conductivity and unstable structure hamper their practical...
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Article
The dielectric properties and relaxor behavior of gadolinium oxide modified barium zirconate titanate ceramics for Y5V capacitor applications
The Gd2O3 modified Ba(Zr0.1Ti0.9)O3 dielectric ceramics were fabricated using the conventional solid state reaction method. The influences of Gd2O3 on their microstructures, dielectric properties and relaxor beha...
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Article
Tunning the dielectric and energy storage properties of high entropy ceramics (Bi0.2Na0.2K0.2La0.2Sr0.2)(Ti1-xScx)O3 by Sc-do** at B-site in perovskite structure
The (Bi0.2Na0.2K0.2La0.2Sr0.2)(Ti1-xScx)O3 (BNKLST-xSc) high entropy ceramics (HECs) have been successfully synthesized via a citrate acid method. The effects of Sc-do** on the lattice structure, microstructura...
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Article
Investigation on variation and influencing factors of magnetization loss of HTS-coated conductor under alternating high magnetic field
The magnetization loss of multilayer high-temperature superconductor (HTS)-coated conductors (CC)’s will affect the temperature, current carrying capacity, and refrigeration cost of HTS CCs, which has become a...
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Article
Strontium doped CaCu3Ti4O12 ceramics with very low dielectric loss synthesized by the sol–gel method
The Ca site of CaCu3Ti4O12 (CCTO) ceramics doped by strontium (Ca1-xSrxCu3Ti4O12, x = 0.0, 0.1, 0.2, 0.3) were accomplished by a modified sol–gel method and subsequently sintered at 980–1020 °C to improve the die...
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Article
NH3+-Functionalized PAMAM Dendrimers Enhancing Power Conversion Efficiency and Stability of Perovskite Solar Cells
The introduction of polymer additives provides a simple effective method to modify perovskite grain boundaries to improve power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs). In th...
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Comparative analyses of the influence of tetraethoxysilane additives on the sintering kinetics of Nd:YAG transparent ceramics
In this work, the sintering kinetics of Nd:YAG transparent ceramics under the vacuum environment were investigated by the high-temperature solid-state reaction. We focus on the influence of tetraethoxysilane (...
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Article
Warm-white luminescence of Dy3+ and Sm3+ co-doped NaSrPO4 phosphors through energy transfer between rare earth ions
Series of white light-emitting NaSrPO4:Dy3+ phosphors were synthesized via a sol–gel method. Small amounts of Sm3+ ions were co-doped into the phosphors to enhance their luminescence. The effects of Dy3+/Sm3+ co-...
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Article
Reducing the low-frequency dielectric loss of CaCu3Ti4O12 ceramics by adding (In0.5Nb0.5)0.05Ti0.95O2
CaCu3Ti4O12 (CCTO) is a very promising high dielectric permittivity ceramic, but the larger low-frequency dielectric loss limits its application. According to internal barrier layer capacitance effect, which is c...
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Enhanced Transmittance and Photoelectrochemical 2D Nanostructured N-Type Semiconductor ZnS Thin Film Prepared by One-Step Electrodeposition in a Non-Vacuum-Processed CIGS Cell
Two-dimensional N-type semiconductor nanostructured ZnS films for use in optical semiconductor applications were fabricated via a comparatively facile and low-cost electrodeposition method. Electrodeposition was ...
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Article
Soft surface electrode based on PDMS-CB conductive polymer for electrocardiogram recordings
Current soft surface electrodes have attracted more and more attention owing to their potential applications in the fields of biological signal monitoring, wearable human–machine interface and internet of thin...
