15 Result(s)
within
XIAO-WEI SUN
Science, Humanities and Social Sciences, multidisciplinary
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Article
Open AccessFirst-principles study on the high-pressure physical properties of orthocarbonate Ca2CO4
Orthorhombic Ca2CO4 is a recently discovered orthocarbonate whose high-pressure physical properties are critical for understanding the deep carbon cycle. Here, we study the structure, elastic and seismic properti...
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Article
Open AccessHigh-performance phononic crystal sensing structure for acetone solution concentration sensing
A two-dimensional phononic crystal sensor model with high-quality factor and excellent sensitivity for sensing acetone solutions and operating at 25–45 kHz is proposed. The model for filling solution cavities ...
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Article
Open AccessComparative study on high-pressure physical properties of monoclinic MgCO3 and Mg2CO4
The physical properties of Mg-carbonate at high temperature and pressure are crucial for understanding the deep carbon cycle. Here, we use first-principles calculations to study the physical properties of MgCO3-C
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Article
Open AccessCoherent surface-to-bulk vibrational coupling in the 2D topologically trivial insulator Bi2Se3 monitored by ultrafast transient absorption spectroscopy
Ultrafast carrier relaxation in the 2D topological insulator (TI) Bi2Se3 [gapped Dirac surface states (SS)] and how it inherits ultrafast relaxation in the 3D TI Bi2Se3 (gapless Dirac SS) remains a challenge for ...
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Article
Open AccessFirst-principles calculations of high-pressure physical properties anisotropy for magnesite
The first-principles calculations based on density functional theory with projector-augmented wave are used to study the anisotropy of elastic modulus, mechanical hardness, minimum thermal conductivity, acoust...
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Article
Open AccessLarge-area patterning of full-color quantum dot arrays beyond 1000 pixels per inch by selective electrophoretic deposition
Colloidal quantum dot (QD) emitters show great promise in the development of next-generation displays. Although various solution-processed techniques have been developed for nanomaterials, high-resolution and ...
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Article
Open AccessTunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain
In view of the influence of variability of low-frequency noise frequency on noise prevention in real life, we present a novel two-dimensional tunable phononic crystal plate which is consisted of lead columns d...
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Article
Open AccessHybrid plasmonic nano-emitters with controlled single quantum emitter positioning on the local excitation field
Hybrid plasmonic nano-emitters based on the combination of quantum dot emitters (QD) and plasmonic nanoantennas open up new perspectives in the control of light. However, precise positioning of any active medi...
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Article
Open AccessIrreversible accumulated SERS behavior of the molecule-linked silver and silver-doped titanium dioxide hybrid system
In recent years, surface-enhanced Raman scattering (SERS) of a molecule/metal–semiconductor hybrid system has attracted considerable interest and regarded as the synergetic contribution of the electromagnetic ...
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Article
Open AccessEfficient visible light modulation based on electrically tunable all dielectric metasurfaces embedded in thin-layer nematic liquid crystals
All-dielectric metasurfaces have attracted attention for highly efficient visible light manipulation. So far, however, they are mostly passive devices, while those allowing dynamic control remain a challenge. ...
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Article
Open AccessElectric Bias Induced Degradation in Organic-Inorganic Hybrid Perovskite Light-Emitting Diodes
For organic-inorganic perovskite to be considered as the most promising materials for light emitting diodes and solar cell applications, the active materials must be proven to be stable under various condition...
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Article
Open AccessCascaded plasmon-plasmon coupling mediated energy transfer across stratified metal-dielectric nanostructures
Surface plasmon (SP) coupling has been successfully applied to nonradiative energy transfer via exciton-plasmon-exciton coupling in conventionally sandwiched donor-metal film-acceptor configurations. However, ...
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Article
Open AccessPreparation of Aluminum Nanomesh Thin Films from an Anodic Aluminum Oxide Template as Transparent Conductive Electrodes
We have employed anodic aluminum oxide as a template to prepare ultrathin, transparent and conducting Al films with a unique nanomesh structure for transparent conductive electrodes. The anodic aluminum oxide ...
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Article
A bi-functional device for self-powered electrochromic window and self-rechargeable transparent battery applications
Electrochromic smart windows are regarded as a good choice for green buildings. However, conventional devices need external biases to operate, which causes additional energy consumption. Here we report a self-...
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Article
Open AccessAll Solution-processed Stable White Quantum Dot Light-emitting Diodes with Hybrid ZnO@TiO2 as Blue Emitters
White quantum dot light-emitting diodes (QD-LEDs) have been a promising candidate for high-efficiency and color-saturated displays. However, it is challenging to integrate various QD emitters into one device a...
