Zhengwen Yang

ORCID: 0000-0001-6470-9244
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Research Areas
  • Luminescence Properties of Advanced Materials
  • Photonic Crystals and Applications
  • Perovskite Materials and Applications
  • Particle physics theoretical and experimental studies
  • Quantum Chromodynamics and Particle Interactions
  • Glass properties and applications
  • Advanced Photocatalysis Techniques
  • Solid State Laser Technologies
  • Luminescence and Fluorescent Materials
  • Radiation Detection and Scintillator Technologies
  • Photonic and Optical Devices
  • Photorefractive and Nonlinear Optics
  • Random lasers and scattering media
  • High-Energy Particle Collisions Research
  • Nonlinear Optical Materials Studies
  • Photochromic and Fluorescence Chemistry
  • Gas Sensing Nanomaterials and Sensors
  • Polydiacetylene-based materials and applications
  • Atomic and Subatomic Physics Research
  • Microwave Dielectric Ceramics Synthesis
  • Thermal Radiation and Cooling Technologies
  • Black Holes and Theoretical Physics
  • Dark Matter and Cosmic Phenomena
  • Nuclear materials and radiation effects
  • Lanthanide and Transition Metal Complexes

Lanzhou University
2023-2025

Kunming University of Science and Technology
2016-2025

Songjiang District Central Hospital
2025

Materials Science & Engineering
2025

Center for Theoretical Physics
2025

Kunming University
2015-2023

University of Maryland, College Park
2023

Jilin University
2004-2021

Xi'an City Planning&Design Institute (China)
2020

Kunming Institute of Precious Metals
2013-2015

Abstract Reversible upconversion luminescence modification based on photochromism has received considerable interest due to its potential applications in optical storage and high‐sensitivity switches. However, stimulation‐induced bleaching by an external thermal field is generally used for photochromism‐induced reversible modification, which limits practical application. In this work, a gray BaMgSiO 4 :Yb 3+ ,Tb ceramic prepared, exhibiting the from pink color when stimulated 254 nm light....

10.1002/adom.201900213 article EN Advanced Optical Materials 2019-05-17

Abstract Transparent glass has been identified as a vital medium for three-dimensional (3D) optical information storage and multi-level encryption. However, it remained challenge directly writing 3D patterning inside transparent using semiconductor blue laser instead of high-cost femtosecond laser. Here, we demonstrate that rare earth ions doped can be used data encryption based on their reversible transmittance photoluminescence manipulation. The color tungsten phosphate with change...

10.1038/s41377-021-00581-y article EN cc-by Light Science & Applications 2021-07-07

Abstract Flexible capacitive pressure sensors play an important role in electronic skin and human–machine interaction due to their high sensitivity convenient preparation, comparing with those resistive/piezoresistive sensors. However, the complexity of application environment, reported often experience signal instability by electromagnetic interference proximity effects. The great challenge for is maintain wide linear range while reducing interference. This study proposes a anti‐jamming...

10.1002/adfm.202305531 article EN Advanced Functional Materials 2023-08-30

The combination of X-ray-irradiation-induced photochromism and persistent radioluminescence in a single material presents an exciting avenue for multi-functional applications such as optical memory, anti-counterfeiting, X-ray detection imaging. However, developing remains significant challenge. Here, white Ba3MgSi2O8:Mn2+ photochromic phosphor was prepared, exhibiting white-to-orange color change (>20 h bright field) good emission (>90 min dark response to radiation. also demonstrated...

10.1021/acsenergylett.3c00673 article EN ACS Energy Letters 2023-04-17

Inorganic photochromic material is an available medium to obtain optical information storage. The property of the inorganic mainly from defects host. However, formation in host uncontrollable, particular, revisable and removement are difficult. Thus, there few materials with photochromism upon entire light stimulation. Therefore, it urgent need find a suitable approach design materials. Here, PbWO4:Yb3+, Er3+ ceramic was designed help valence state change W6+ → W5+ Pb2+ Pb4+. Upon 532 nm...

10.1021/acsami.0c05909 article EN ACS Applied Materials & Interfaces 2020-04-22

Reversible luminescence modulation of upconversion phosphors has the potential applications as photoswitches and optical memory data storage devices. Previously, photochromic reaction was extensively used for realization reversible modulation. It is very necessary to develop other approaches such thermomchromic obtain In this work, WO3:Yb3+,Er3+ with various colors were prepared at temperatures, exhibiting tunable attributed formation oxygen vacancies in host. Upon heat treatment reducing...

10.1021/acsami.8b03616 article EN ACS Applied Materials & Interfaces 2018-04-05

Transparent glass with photochromism and luminescence has emerged as an attractive material due to its exciting prospects in the fields of information encryption 3D optical storage. However, thermal stimulation usually been used bleach photochromic glass, limiting applications. Herein, a new entirely photostimulation-induced reversible doped lanthanide ions silver chloride (RE-Ag glass), was explored. Under alternating 365 nm light 690 laser, (ΔRt = 91%) from transparent black modification...

10.1021/acsenergylett.2c00574 article EN ACS Energy Letters 2022-05-24

Reversible photochromism and reversible UCL modulation of TiO 2 :Yb 3+ ,Er ceramics were reported when alternating 405 nm LED 808 laser irradiation. The photochromic are promising materials in the field anti-counterfeiting.

10.1039/d2tc00859a article EN Journal of Materials Chemistry C 2022-01-01

Abstract Double perovskite (DP) phosphors attract extensive attention due to their potential applications in the field of optoelectronics. Photochromism‐induced luminescence modulation can extend application fields. However, designing and preparing DP with expected photochromic luminescent properties is still challenging. Herein, Ba 2 YTaO 6 : Yb 3+ , Er Co 2+ upconversion developed. The color sample turns from white pink upon 254 nm UV light irradiation, which fast fading 473 laser...

10.1002/adom.202301293 article EN Advanced Optical Materials 2023-07-23

Abstract The reversible luminescence modification of inorganic phosphors has emerged as a promising field, enabling innovative applications such optical memory, multiple anti‐counterfeiting, and photoswitches. Traditional modulation techniques, core–shell structure design energy transfer‐related luminescent ions regulation, face challenges in achieving modification. Chromism induces color changes materials when stimulated by external fields electricity, heat, light. Combining chromism with...

10.1002/adom.202302265 article EN Advanced Optical Materials 2023-12-07

Abstract This study explores the integration of X‐ray‐induced photochromism and photoluminescence in a single material, offering innovative multi‐mode applications optical memory, anti‐counterfeiting, X‐ray detection imaging. The photochromic phosphor LiAlSi 2 O 6 :Sm 3+ is synthesized, which undergoes color change from white to dark green under bright field conditions displays orange after exposure due defect formation. shows accelerated bleaching recovery 473 nm laser stimulation. distinct...

10.1002/adfm.202402452 article EN Advanced Functional Materials 2024-04-12

This study aims to analyze the screening results and epidemiological characteristics of prostate cancer (PCa) among elderly males in rural areas Songjiang, Shanghai City, through implementation a preliminary prostate-specific antigen (PSA) based on community-linkage model, explore an effective approach. A retrospective observational design was employed collect data from residents who underwent PSA at Songjiang Hospital affiliated Jiao Tong University School Medicine, collaboration with...

10.3760/cma.j.cn112150-20240906-00710 article EN PubMed 2025-02-06

A new method for enhancing the upconversion (UC) emission of rare-earth doped nanoparticles is reported, in which Yb3+/Er3+ or Yb3+/Tm3+ co-doped NaYF4 are deposited on to surface photonic crystal (PC) films. The UC PC was notably enhanced when bands were within range band gap PCs, indicating that PCs efficient and selective reflection mirrors. results show may have potential applications optoelectronics lighting devices.

10.1039/c3tc30895b article EN Journal of Materials Chemistry C 2013-01-01

Metal nanoparticle plasmons or the photonic crystal effect are being widely used to modify luminescence properties of materials. However, coupling surface with crystals seldom reported for enhancing In this paper, a new method upconversion emission enhancement rare-earth doped nanoparticles is reported, attributed band gap effects. Opal/Ag hybrid substrates were prepared by depositing Ag on top layer opals magnetron sputtering. The selective red green NaYF4:Yb3+,Er3+ opal/Ag and Bragg...

10.1021/jp504586t article EN The Journal of Physical Chemistry C 2014-07-11

Negative lattice expansion-induced upconversion luminescence (UCL) thermal enhancement can efficiently solve quenching of lanthanide ions, and the temperature sensing characteristics be obtained by combining with fluorescence intensity ratio technology.

10.1039/d2tc05009a article EN Journal of Materials Chemistry C 2022-12-23
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