Xiaoyu Ji

ORCID: 0000-0003-2071-3721
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About
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Research Areas
  • Photonic and Optical Devices
  • Thermochemical Biomass Conversion Processes
  • Coal and Its By-products
  • Thin-Film Transistor Technologies
  • Photonic Crystals and Applications
  • Lignin and Wood Chemistry
  • Recycling and utilization of industrial and municipal waste in materials production
  • Spectroscopy Techniques in Biomedical and Chemical Research
  • Membrane Separation Technologies
  • Coagulation and Flocculation Studies
  • Nanowire Synthesis and Applications
  • Silicon Nanostructures and Photoluminescence
  • Advanced Photocatalysis Techniques
  • Enhanced Oil Recovery Techniques
  • Surfactants and Colloidal Systems
  • Adsorption and biosorption for pollutant removal
  • Impact of Light on Environment and Health
  • Electronic and Structural Properties of Oxides
  • Electrostatic Discharge in Electronics
  • Advanced Thermoelectric Materials and Devices
  • Photonic Crystal and Fiber Optics
  • Luminescence and Fluorescent Materials
  • Optical Coatings and Gratings
  • Elevator Systems and Control
  • Constructed Wetlands for Wastewater Treatment

Harbin Institute of Technology
2014-2023

BYD (China)
2023

Institute of Physics
2023

Baidu (China)
2022

Chengdu University of Traditional Chinese Medicine
2021

Jiangsu University
2018-2020

Fujian Normal University
2019

Hermes Microvision (United States)
2019

Fuzhou University
2019

Liaocheng University
2018-2019

Semiconductor core optical fibers with a silica cladding are of great interest in nonlinear photonics and optoelectronics applications. Laser crystallization has been recently demonstrated for crystallizing amorphous silicon into crystalline form. Here we explore the underlying mechanism by which long single-crystal fibers, novel platforms photonics, can be achieved this process. Using finite element modeling, construct laser processing diagram that reveals parameter space within single...

10.1021/acsphotonics.6b00584 article EN ACS Photonics 2016-12-05

Synthesis and fabrication of high-quality, small-core single-crystal germanium fibers that are photosensitive at the near-infrared have low optical losses ≈1 dB cm−1 2 μm reported. These potential applications in fiber-based spectroscopic imaging, nonlinear devices, photodetection telecommunication wavelengths.

10.1002/adom.201600592 article EN Advanced Optical Materials 2016-09-19

Polycrystalline silicon core optical fibers have been fabricated by modified thermal annealing of amorphous chemically deposited at high pressure. The resulting small-diameter cores, a geometry advantageous for guidance. Moreover, the combination chemical deposition and avoids difficulties associated with undesired transfer oxygen impurities to from molten cladding during drawing process. aspect ratio presence silica surrounding make design rules optimize their polycrystalline structure...

10.1021/acsphotonics.5b00434 article EN ACS Photonics 2016-01-12

Acid pretreatment plays an important role in the preparation of amorphous silica with high activity and specific surface area before combustion process. However, some limitations problems exist process previous literatures. On basis this, this work is aimed at simplifying acid condition, which could present a more advantageous for practical industrial applications. Then removal percentage behavior metal impurities rice husk studied by ICP‐OES, effects on properties ash (RHA) various...

10.1002/ep.12513 article EN Environmental Progress & Sustainable Energy 2017-02-28

Mott insulating oxides and their heterostructures have recently been identified as potential photovoltaic materials with favorable absorption properties an intrinsic built-in electric field that can efficiently separate excited electron–hole pairs. At the same time, they are predicted to overcome Shockley-Queisser limit due strong electron–electron interaction present. Despite these premises a high concentration of defects commonly observed in films acting recombination centers derogate...

10.1021/acsami.6b16007 article EN ACS Applied Materials & Interfaces 2017-03-23

Several additives (NaSal, 1SHNC, and 2SHNC) were added into aqueous solutions of a cationic surfactant, 3-tetradecyloxy-2-hydroxy-propyl trimethyl ammonium bromide (R14HTAB). The mixed investigated using rheological measurements, molecular dynamics (MD) simulations, cryogenic transmission electron microscopy (cryo-TEM), 1H NMR, Fourier transform infrared (FTIR) spectroscopy. results demonstrated that the zero-shear viscosity (η0) increased with increasing salt concentrations until reaching...

10.1021/acs.jpcc.8b10495 article EN The Journal of Physical Chemistry C 2019-01-15

Abstract Interlayer decoupling plays an essential role in realizing unprecedented properties atomically thin materials, but it remains relatively unexplored the bulk. It is unclear how to realize a large crystal that behaves as its monolayer counterpart by artificial manipulation. Here, we construct superlattice consisting of alternating layers NbSe 2 and highly porous hydroxide, proof principle for interlayer bulk materials. In (NaOH) 0.5 , electric manifested ideal 1D insulating state...

10.1038/s41467-023-42510-0 article EN cc-by Nature Communications 2023-10-21

A fluorescent sensor for thymine based on bis-BODIPY containing butanediamido bridges was prepared and applied in the sensitive detection of living cell imaging.

10.1039/c9nj00406h article EN New Journal of Chemistry 2019-01-01

Conformally coating textured, high surface area substrates with quality semiconductors is challenging. Here, we show that a pressure chemical vapor deposition process can be employed to conformally coat the individual fibers of several types flexible fabrics (cotton, carbon, steel) electronically or optoelectronically active materials. The (∼30 MPa) significantly increases rate at low temperatures. As result, it becomes possible deposit technologically important hydrogenated amorphous...

10.1063/1.5020814 article EN cc-by APL Materials 2018-04-01

For a reliable and efficient process for the recovery of energy alkali reed black liquor (BL), experiments BL combustion in fluidized bed with limestone as material direct causticization were conducted at temperatures from 700 to 900 °C. The products causticizing identified by XRD, rate was measured. In addition, mechanism inhibiting agglomeration studied. results show that system successfully recovers NaOH when using material, is more than 87.4%. Na2O·2SiO2 produced main binder...

10.1021/acs.energyfuels.6b00847 article EN Energy & Fuels 2016-06-14

The pyrolysis of reed black liquor (RBL) was studied in nitrogen atmosphere by thermogravimetric analysis at six different heating rates 5, 10, 20, 30, 40, and 50 ˚C•min-1 from ambient temperature (25 ˚C) to 800 ˚C. Thermogravimetric (TG) differential (DTG) curves were obtained. results show that there are three main weight-loss stages the ranges 180 350, 350 560, 560 ˚C, for which error is about ± 10 kinetic parameters determined Coats-Redfern method. A compensation effect (KCE) between...

10.15376/biores.10.1.137-144 article EN publisher-specific-oa BioResources 2014-11-11

We demonstrate mid-infrared spectroscopic imaging using a unique optical fiber probe consisting of an array Ge waveguide cores embedded in silica matrix. Biological tissue slices are characterized to illustrate its potential endoscopic uses. The based transmission measurements show excellent agreement with the result obtained from standard Fourier Transform Infrared spectroscopy wavelength range 3289.8 nm 3383.3 nm, where fat and muscle tissues could be spectroscopically distinguished.

10.1364/oe.22.028459 article EN cc-by Optics Express 2014-11-07

Pattern defects and uninvited particles (residuals) probably appear on Mask Wafer in any manufacturing process of integrated circuits (ICs) impact the final yield IC chips. To ensure a high yield, defect inspection has been broadly adopted for monitoring many processes volume (HVM) shortening development cycle-times critical R&D. In HVM optical tools have played major role, R&D e-beam role. For 7nm technology node beyond, minimum size killer are going to be invisible tools, too slow capture...

10.1117/12.2536565 article EN 2019-08-29
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