A5101503768- Luminescence Properties of Advanced Materials
- Luminescence and Fluorescent Materials
- Perovskite Materials and Applications
- Solid State Laser Technologies
- Glass properties and applications
- Silicon Carbide Semiconductor Technologies
- Radiation Effects in Electronics
- Minerals Flotation and Separation Techniques
- Radiation Detection and Scintillator Technologies
- Iron and Steelmaking Processes
- Advancements in Semiconductor Devices and Circuit Design
- Random lasers and scattering media
- Metal Extraction and Bioleaching
- Photonic and Optical Devices
- Photorefractive and Nonlinear Optics
Yanshan University
2021-2023
Abstract Realizing multicolor emissions of upconversion (UC) luminescence materials is significant importance for information security and anticounterfeiting fields. Herein, a strategy reported to achieve UC through manipulating the electronic transition process under dual‐wavelength excitation. The novel color can be produced via exploiting synergistic effect photons excitation control electron distribution, further modulated by finely adjusting power. Furthermore, range color‐tunable...
A novel multicolor UC material with high-sensitivity for ultra-low temperature is designed and exhibits great potential in fulfilling advanced dual-mode anti-counterfeiting.
All-optical logic gates operations are highly desired for optical communications and data processing because of the high computing speed, low power consumption, parallel processing. Here, we develop a combinational upconversion (UC) all-optical system based on glass-ceramic (GC) material, which uses two external near-infrared excitation sources as inputs signal UC emission outputs. The prepared transparent oxyfluoride GC containing Er:NaYF4 nanocrystals could well respond to dual-wavelength...
Rational design of multicolor upconversion (UC) luminescent to achieve cryogenic optical thermometers holds exotic potential applications in many high-tech fields. Here, a strategy is proposed UC luminescence by thermally manipulating the electronic transition process, which could be used temperature sensing. The nonthermally coupled energy levels control emission intensity corresponding through nonradiative relaxation thus allowing for achieving high sensitivity Er3+-doped material...
Rare earth-doped oxyfluoride glass-ceramic (GC) demonstrate the physical, chemical, and mechanical stabilities of oxide glass excellent optical properties fluoride crystals is regarded as a potential material for developing advanced devices. In present study, Li+-doped NaYF4:Er,Yb GC was prepared by traditional melt-quenching method. Upon excitation single 980 1550 nm lasers, upconversion (UC) luminescence intensities green red emission were enhanced due to introduction crystal field...
First-principle theory was used to design NaGdF4:Yb3+/Er3+ crystal, where the density of state, X-ray diffraction and optical coefficient had been studied through a generalised gradient approximation within functional predicate effect rare earth ion doping on electronic performance. Besides, nanoparticles were also obtained by liquid–solid–solution method realized enhancement upconversion emission regulation spectrum under co-excitation 980 nm 1550 lasers. The results inspired us establish...
Abstract A complex UC logic system using 1470 and 1550 nm dual‐wavelength as triggering signals has been developed to implement multilevel operations. Gd 2 (MoO 4 ) 3 :Yb 3+ /Er upconversion luminescence material can achieve significantly emission enhancement upon simultaneous excitation of due the synergistic effect two kinds photons realizing better match with energy level. The influences power low temperature on are also in‐depth researched. Multiple combination operations including...