Xuewen Yan

ORCID: 0009-0008-0059-8061
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About
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Research Areas
  • Luminescence Properties of Advanced Materials
  • Luminescence and Fluorescent Materials
  • Solid State Laser Technologies
  • Perovskite Materials and Applications
  • Advanced Sensor and Control Systems
  • Inorganic Fluorides and Related Compounds
  • Advanced Algorithms and Applications
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Embedded Systems and FPGA Design
  • Plasmonic and Surface Plasmon Research
  • Advanced Computational Techniques and Applications
  • Medical Imaging Techniques and Applications
  • Advanced Radiotherapy Techniques
  • Glass properties and applications
  • Radiation Detection and Scintillator Technologies
  • Organic Light-Emitting Diodes Research
  • Industrial Technology and Control Systems
  • High voltage insulation and dielectric phenomena
  • Radiation Therapy and Dosimetry
  • Nanocluster Synthesis and Applications
  • Image Processing Techniques and Applications
  • Quantum Dots Synthesis And Properties
  • Advanced X-ray and CT Imaging
  • Radioactive Decay and Measurement Techniques
  • Advanced Measurement and Detection Methods

Xi’an University of Posts and Telecommunications
2015-2024

National Institute for Radiological Protection
2019-2024

Lanzhou Jiaotong University
2023

Second Hospital of Tianjin Medical University
2019

Tianjin Medical University
2019

Taiyuan University of Science and Technology
2007-2012

Changshu Institute of Technology
2012

Taiyuan Heavy Industry (China)
2003-2008

Jingdong (China)
2006

United States Government Accountability Office
2003

The enhanced local electromagnetic field (EM) excited on the noble metallic nanostructure exhibits potential application in various areas, particularly surface-enhanced spectroscopy (SES). Resonant coupling of SPs to luminous centers can strongly moderate emission spectra properties, including angular distribution, intensity, speed radiative decay, and even spectrum radiation polarization, or so-called plasmon-enhanced fluorescence (PEF). Due low efficiency small absorption section rare...

10.1016/j.revip.2018.100026 article EN cc-by Reviews in Physics 2018-12-05

The absorption and scattering frequencies of surface plasmon resonance can be selectively adjusted by changing the morphology, size, structure, arrangement, gap between noble metal nanoparticles so that local electromagnetic field on substrate further enhanced. This change will promote popularize surface-enhanced Raman spectroscopy. paper reports research results improvement scheme enhanced (SERS) activity silver-coated gold nanocubed/organism (Au@Ag/CW NCs) prepared three-phase...

10.1021/acsami.3c05488 article EN ACS Applied Materials & Interfaces 2023-06-05

Bulk scintillators that are with high density, low cost, and fine pulse-height energy spectral resolution, non-hygroscopic user friendly, desired for high-energy gamma-ray spectroscopy application. Recently, low-cost solution-processed perovskite nanoscintillators have been demonstrated outstanding performances indirect low-energy X-ray detection; however, the stability thickness not suitable detection. Here, we report scintillation of a bulk 0D <mml:math...

10.1364/prj.412959 article EN Photonics Research 2021-01-13

This paper proposes a method for detecting and recognizing partial discharges in high-voltage (HV) equipment. The aim is to address issues commonly found traditional systems, including complex operations, high computational demands, significant power consumption, elevated costs. Various types of were investigated an HV laboratory environment. Discharge data collected using high-frequency current sensor microcontroller. Subsequently, this underwent processing transformation into feature sets...

10.3390/app131810370 article EN cc-by Applied Sciences 2023-09-16

10.1016/j.materresbull.2016.03.024 article EN publisher-specific-oa Materials Research Bulletin 2016-03-24

Interfacial modification of organolead halide perovskites (OHPs) has shown to be a promising strategy improve the quality OHPs film. In this work, bipolar amino acid molecule, L‐Leucine (LL), have been introduced anti‐solvent solution induce formation methylammonium lead triiodide (MAPbI 3 ) perovskite films. The morphology, crystal structure, and optoelectronic property films are systematically studied, where LL plays key role. By employing LL‐modified film, solar cells (PSCs) well...

10.1002/pssr.201800505 article EN physica status solidi (RRL) - Rapid Research Letters 2018-11-25

A highly sensitive, reversible, and linear sensor, exhibiting excellent stability in response to temperature humidity, has been successfully proposed demonstrated for the first time. This sensor is achieved by wrapping a polyvinyl alcohol/graphene nanofiber film onto chiral long-period fiber grating (CLPG), which fabricated periodically twisting single mode fiber. In experiment, CLPG demonstrates sensitivity of 74 pm/°C, approximately twice as high that conventional sensors. Note that,...

10.1117/1.oe.63.3.036103 article EN Optical Engineering 2024-03-09

We investigate the thermal characteristics of standard organic light-emitting diodes (OLEDs) using a simple and clear 1D model based on basic heat transfer theory. The can accurately estimate device temperature, which is linearly with electrical input power. simulation results show that there almost no temperature gradient within OLED working under steady state conditions. Furthermore, analysis surface properties (convective coefficient emissivity) substrate or cathode significantly affect...

10.1088/0256-307x/32/8/087201 article EN Chinese Physics Letters 2015-08-01

Lanthanide (Ln)-doped upconversion luminescence (UCL) materials have attracted worldwide attention due to their unique photophysical characteristics. However, how effectively improve UCL efficiency has always been an important scientific issue. Here, we design and fabricate β-NaYF4 microtubes (MTs) with a natural hexagonal shape in the cross section wedge on both top vertexes, which can be regarded as optical waveguide. The property of single β-NaYF4:Yb3+,Er3+(or Tm3+) MT is systematically...

10.1039/d2cp00121g article EN Physical Chemistry Chemical Physics 2022-01-01
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