Sheng Xu

ORCID: 0000-0001-6691-0857
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About
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Research Areas
  • Quantum Dots Synthesis And Properties
  • Perovskite Materials and Applications
  • Organic Light-Emitting Diodes Research
  • Advanced optical system design
  • ZnO doping and properties
  • Luminescence Properties of Advanced Materials
  • Advanced Optical Imaging Technologies
  • Photonic Crystals and Applications
  • Thin-Film Transistor Technologies
  • Chalcogenide Semiconductor Thin Films
  • Semiconductor materials and devices
  • Electron and X-Ray Spectroscopy Techniques
  • Semiconductor Lasers and Optical Devices
  • Color Science and Applications
  • GaN-based semiconductor devices and materials
  • Optical Coatings and Gratings
  • Supercapacitor Materials and Fabrication
  • Surface and Thin Film Phenomena
  • Semiconductor materials and interfaces
  • Advancements in Battery Materials
  • Luminescence and Fluorescent Materials
  • Graphene research and applications
  • Advanced Memory and Neural Computing
  • Liquid Crystal Research Advancements
  • Nanomaterials and Printing Technologies

Tan Kah Kee Innovation Laboratory
2021-2025

Fuzhou University
2016-2025

Jilin University
2025

Jilin Province Science and Technology Department
2025

Nanchang University
2024

Institute of Botany
2024

Chinese Academy of Sciences
2024

Nanjing University of Chinese Medicine
2024

China Electronics Technology Group Corporation
2023

Benha University
2012

An artificial synaptic device that can provide color discrimination, image storage, and recognition is highly required to mimic the human vision for biological robots. All-inorganic halide perovskites have attracted extensive attention reason of their high stability favorable photoelectric properties. In this study, a light-stimulated phototransistor based on CsPbBr3/organic semiconductor hybrid film reported. The fabricated CsPbBr3 exhibits an island structure, which reduces hysteresis...

10.1021/acsami.0c22604 article EN ACS Applied Materials & Interfaces 2021-03-10

Near-eye displays are widely recognized as a groundbreaking technological advancement with the potential to significantly impact daily life. Within realm of near-eye displays, micro-LEDs have emerged highly promising technology owing their exceptional optical performance, compact form factor, and low power consumption. However, notable challenge in integrating into is efficient light collimation across wide spectrum range. In this paper, we propose what believe be novel design broadband beam...

10.1364/oe.518535 article EN cc-by Optics Express 2024-02-23

The energy dependence of the electron lifetime in graphite was measured using femtosecond time-resolved photoemission spectroscopy. found to be inversely proportional excitation above Fermi level, i.e., $({E\ensuremath{-}E}_{F}{)}^{\ensuremath{-}1}$, sharp contrast that metals, whose is $({E\ensuremath{-}E}_{F}{)}^{\ensuremath{-}2}$. results are agreement with prediction layered gas theory, which suggests electron-plasmon interactions dominate electrons a gas, even for small energies, due...

10.1103/physrevlett.76.483 article EN Physical Review Letters 1996-01-15

Abstract Particular N, S co-doped graphene/Fe 3 O 4 hybrids have been successfully synthesized by the combination of a simple hydrothermal process and subsequent carbonization heat treatment. The nanostructures exhibit unique composite architecture, with uniformly dispersed Fe nanoparticles graphene encapsulant. particular porous characteristics many meso/micro holes/pores, highly conductive graphene, as well encapsulating high-level nitrogen sulfur doping, lead to excellent electrochemical...

10.1038/srep27957 article EN cc-by Scientific Reports 2016-06-14

We propose and fabricate a multi-primary-color (MPC) quantum-dot down-converting film (QDDCF). A four-primary-color QDDCF composed of red (R), yellowish green (YG), bluish (BG), blue (B) subpixels was fabricated via totally five rounds photolithographic processes. verification platform built up using laser projector, the measured results show that QD can expand display color gamut to 118.60% Rec. 2020 cover entire Pointer's gamut. The issues light absorption thickness are analyzed in detail....

10.1364/oe.27.028480 article EN cc-by Optics Express 2019-09-20

Current mini-LED backlights improve high-dynamic-range liquid crystal displays (LCDs) by using tens of thousands direct-lit sources for local dimming. However, relative thick profile and high power consumption are the inherent limitations while compared with edge-lit backlights. By synthesizing edge- advantages, we propose a novel hybrid backlight equipped specially designed integrated light guiding plate (LGP) large-area displays. This LGP is seamlessly spliced multiple physically segmented...

10.1364/oe.421346 article EN cc-by Optics Express 2021-03-26

1. This unique nanostructure with 2D MoS 2 nanosheets nanoconfined into amorphous carbon layers delivered the excellent electrochemical performance. 2. The composite exhibited high reversible specific capacity, good rate capability and stability.

10.1039/d1tc05635b article EN Journal of Materials Chemistry C 2022-01-01

Abstract Patterning is crucial for advancing perovskite materials into color conversion micro‐display applications, but achieving inkjet‐printed patterns with high performance and precision remains challenging. Here, novel CsPbBr 3 /PDMS nanoparticles as a promising candidate proposed precise perfect inkjet printing patterns. The as‐prepared ensure exceeding brightness, exceptional stability, uniform fluorescence emission, resolution reaching the highest of drop‐on‐demand printing....

10.1002/lpor.202400298 article EN Laser & Photonics Review 2024-05-30

We present a backlight module (BLM) employing photoluminescent quantum-dot microstructure array for flexible/curved liquid crystal displays (LCDs). Differently sized (QD) BLMs were prepared based on the theoretical spectral model and fabrication process. A 27-inch curved prototype showed wide color gamut of 122.79% under National Television Systems Committee standard while achieving high brightness over 4000 cd/m2 brightness/color uniformity 85.21%/9.2 × 10-3. An LCD monitor equipped with...

10.1364/oe.26.003466 article EN cc-by Optics Express 2018-01-31

In this work, a novel hierarchical tubular structure (SnO2@NC@MoS2/C) has been designed and synthesized using MnOx nanowires as sacrificing template for the hollow tube successively wrapping SnO2 layer, nitrogen-doped carbon (NC) ultrathin MoS2 nanosheets incorporating into layer. such particular structure, conductivity of obviously improved, large volume change caused by lithium/sodium-ion (Li+/Na+) intercalation/deintercalation also effectively alleviated. Especially, due to expansion...

10.1021/acssuschemeng.1c06687 article EN ACS Sustainable Chemistry & Engineering 2022-02-28

Abstract Photoelectric properties of all-inorganic perovskite quantum dots (IPQDs) highly depend on their synthetic route. However, current processes IPQDs are widely facing potential unsustainable issues containing nonreusable and high-cost auxiliary materials. In this work, full-visible-spectrum were successfully synthesized by an environmentally friendly ion-exchange approach with a renewable low-cost anion exchange resin. Introducing resin brings the improvement both optical performance...

10.1515/nanoph-2021-0768 article EN cc-by Nanophotonics 2022-02-18

Pixelated quantum dot color conversion layer (PQDCCL) is the most promising approach to realize a full-color micro-LED display. However, QD excitation by ambient light has non-negligible impact on contrast ratio (ACR) and display readability, ACR issue of color-converted not been fully explored before. In this paper, theoretical models unpixelated monochromatic pixelated polychromatic QDCCLs (UP/PQDCCL) are established quantificationally analyze display, which further demonstrated both...

10.1016/j.rinp.2023.106462 article EN cc-by Results in Physics 2023-04-19

Mini-LED backlights energized by quantum-dot color conversion (QDCC) hold great potential for technological breakthroughs of liquid crystal displays. However, luminance uniformity issues should still be urgently solved owing to the large interval direct-lit mini-LEDs, especially when covering with a QDCC film (QDCCF) uniform thickness. Herein, we propose improvement approach mini-LED employing QDCCF nonuniform thickness based on Lambertian distribution which is demonstrated screen-printing...

10.1364/ol.505552 article EN Optics Letters 2023-10-06

Abstract Over the past few years, light‐emitting diodes (LEDs) have emerged as an efficient replacement for standard incandescent and fluorescent lamps, due to their superior efficiency, energy conservation, service longevity, reliability, affordability. However, identifying a red emitter white LEDs has presented significant challenges. This study seeks synthesize analyze novel emitter, investigating its potential use in indoor plant growth lighting. The Sr 2 Lu(Nb,Mn)O 6 is manufactured...

10.1002/lpor.202301076 article EN Laser & Photonics Review 2024-02-18

The pancake structure is the mainstream optical solution for virtual reality (VR) displays due to its compact, folded path. However, only a small portion of light can pass through engine because incident has be polarized and directed half mirror (HM) twice. In order improve efficiency, new proposed VR display, which employs diffractive deflection film (DDF) with different focal lengths in three regions two cholesteric liquid crystal (CLC) lenses that respond circularly light. CLC are...

10.3390/cryst15010049 article EN cc-by Crystals 2025-01-02

Multifunctional materials have attracted tremendous attention in intelligent and interactive devices. However, achieving multi-dimensional sensing capabilities with the same perovskite quantum dot (PQD) material is still its infancy, some considering it currently challenging even unattainable. Drawing inspiration from neurons, a novel multifunctional CsPbBr3/PDMS nanosphere devised to sense humidity, temperature, pressure simultaneously unique responses. The carefully engineered...

10.1038/s41377-025-01742-z article EN cc-by Light Science & Applications 2025-01-17

Recently, optically active spin defects embedded in van der Waals (vdW) crystals have emerged as a transformative quantum sensing platform to explore cutting-edge materials science and physics. Taking advantage of excellent solid-state integrability, this new class can be arranged controllable nanoscale proximity target vdW heterostructures, showing great promise for improving spatial resolution field sensitivity current technologies. Building on state-of-the-art measurement platform, here...

10.48550/arxiv.2502.04561 preprint EN arXiv (Cornell University) 2025-02-06

Abstract Optimizing the three‐primary‐color perovskite quantum dots (TPC PQDs) is crucial for achieving ultra‐wide color gamut displays. Although encapsulation an effective strategy to improve stability and optical performance of TPC PQDs, chemicals or environment employed in coating procedure may attack CsPbX 3 PQDs generate defects, damage, ligand loss. Herein, a mild, facile universal hexamethylcyclotrisiloxane (D3) situ ring opening polymerization successfully developed efficiently...

10.1002/smll.202410180 article EN Small 2025-02-16
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