Narrowband ultraviolet-B persistent luminescence from (Y,Gd)3Ga5O12:Bi3+ phosphors for optical tagging application

2021 ◽  
Author(s):  
Jingwei Liu ◽  
Yanjie Liang ◽  
Shao Yan ◽  
Dongxun Chen ◽  
Shihai Miao ◽  
...  
Keyword(s):  
Spectral Region ◽  
Ultraviolet B ◽  
Spectral Features ◽  
Luminescent Materials ◽  
Persistent Luminescence ◽  
Potential Applications

Luminescent materials that emit in the narrowband ultraviolet-B (NB-UVB; 310–313 nm) spectral region have attracted considerable attention due to their unique spectral features, which endow them with great potential applications...

Sunlight-activated long persistent luminescence in the ultraviolet-B from Bi3+-doped garnet phosphors for covert optical tagging

2021 ◽  
Author(s):  
Jingwei Liu ◽  
Yanjie Liang ◽  
Shao Yan ◽  
Dongxun Chen ◽  
Shihai Miao ◽  
...  
Keyword(s):  
Ultraviolet B ◽  
Great Promise ◽  
Luminescent Materials ◽  
Persistent Luminescence

Ultraviolet (UV) luminescent materials hold great promise for applications across a wide number of fields, whether environmental, biological or medical. However, luminescent materials with the capability to continue emitting UV...

Synthesis and optical properties of a Y3(Al/Ga)5O12:Ce3+,Cr3+,Nd3+ persistent luminescence nanophosphor: a promising near-infrared-II nanoprobe for biological applications

Nanoscale ◽  
2020 ◽  
Vol 12 (26) ◽  
pp. 14180-14187 ◽  
Author(s):  
Luyan Wu ◽  
Jie Hu ◽  
Qilin Zou ◽  
Yaling Lin ◽  
Decai Huang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Spectral Region ◽  
Near Infrared ◽  
Persistent Luminescence ◽  
Biological Applications ◽  
Microemulsion Method

Y3(Al/Ga)5O12:Ce3+,Cr3+,Nd3+ nanocrystals with strong persistent luminescence in the NIR-II spectral region, which are highly desired for bioimaging, have been synthesized by a salt microemulsion method.

Well-Defined BaWO4:Dy3+ Luminescent Materials: Hydrothermal Synthesis and Luminescence Properties

2014 ◽  
Vol 998-999 ◽  
pp. 128-131
Author(s):  
Guang Jia ◽  
Dong Bing Dong ◽  
Jing Yi Liu ◽  
Quan Ying Kang ◽  
Cui Miao Zhang
Keyword(s):  
Hydrothermal Process ◽  
Chelating Agent ◽  
Trisodium Citrate ◽  
Yellow Emission ◽  
Luminescent Materials ◽  
Fluorescent Lamps ◽  
Ellipsoidal Particles ◽  
Potential Applications ◽  
Light Excitation ◽  
Display Systems

Uniform and well-dispersed ellipsoidal BaWO4:Dy3+ particles have been prepared via a simple hydrothermal method. The as-obtained particles are non-aggregated with narrow size distribution and are composed of closely packed nanoparticles. During the hydrothermal process, the chelating agent trisodium citrate plays an important role for the formation of BaWO4:Dy3+ hierarchical ellipsoidal particles. The BaWO4:Dy3+ phosphor shows intense yellow emission corresponding to 4F9/2-6H13/2 transition of the Dy3+ ions under ultraviolet light excitation, which may find potential applications in fields of fluorescent lamps, display systems, and optoelectronic devices.

White luminescent single-crystalline chlorinated graphene quantum dots

2020 ◽  
Vol 5 (6) ◽  
pp. 928-933 ◽  
Author(s):  
Weitao Li ◽  
Huazhang Guo ◽  
Gao Li ◽  
Zhen Chi ◽  
Hailong Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Graphene Quantum Dots ◽  
Luminescent Materials ◽  
Single Crystalline ◽  
Light Emitting ◽  
New Class ◽  
Potential Applications

A new class of white luminescent materials, white-light-emitting graphene quantum dots (WGQDs), have attracted increasing attention because of their unique features and potential applications.

A highly efficient, orange light-emitting (K0.5Na0.5)NbO3:Sm3+/Zr4+ lead-free piezoelectric material with superior water resistance behavior

2015 ◽  
Vol 3 (20) ◽  
pp. 5275-5284 ◽  
Author(s):  
Qiwei Zhang ◽  
Ke Chen ◽  
Leilei Wang ◽  
Haiqin Sun ◽  
Xusheng Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Piezoelectric Material ◽  
Water Resistance ◽  
Lead Free ◽  
Luminescent Materials ◽  
Light Emitting ◽  
Highly Efficient ◽  
Potential Applications ◽  
Rare Earth Doped ◽  
Multifunctional Devices

Multifunctional luminescent materials based on rare earth doped ferro-/piezoelectrics have attracted much attention due to their potential applications in novel multifunctional devices.

Long Persistent Luminescence: A Road Map Toward Promising Future Developments in Energy and Environmental Science

2021 ◽  
Vol 51 (1) ◽  
Author(s):  
Chiara Chiatti ◽  
Claudia Fabiani ◽  
Anna Laura Pisello
Keyword(s):  
Environmental Science ◽  
Energy Savings ◽  
Materials Science ◽  
Annual Review ◽  
Publication Date ◽  
Luminescent Materials ◽  
Persistent Luminescence ◽  
Road Map ◽  
Lighting Energy

In recent decades, research on persistent luminescence has led to new phosphors and promising performance. Efforts to improve the quality of phosphors’ afterglow have paved the way toward innovative solutions for many disciplines. However, there are few examples of the implementation of luminescent materials. In addition to providing a general background on persistent luminescence, the techniques used for its analysis, and its multidisciplinary potential in energy and environmental science, this article aims to explain the existing gap between the physical-chemical approach and the effective implementation of luminescent materials in larger-scale applications. It investigates engineering solutions in terms of the possible benefits of luminescence in lighting energy savings and passive cooling of urban surfaces. Finally, this article aims to reduce the abovementioned gap by suggesting what is most needed for the successful application of luminescent materials in the built environment. Expected final online publication date for the Annual Review of Materials Science, Volume 51 is July 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Sunlight-activated yellow long persistent luminescence from Nb-doped Sr3SiO5:Eu2+ for warm-color mark applications

2020 ◽  
Vol 8 (3) ◽  
pp. 1143-1150 ◽  
Author(s):  
Zhizhen Wang ◽  
Zhen Song ◽  
Lixin Ning ◽  
Quanlin Liu
Keyword(s):  
Threshold Value ◽  
Luminescent Materials ◽  
Persistent Luminescence ◽  
Peak Wavelength ◽  
Sunlight Radiation

A novel warm-color persistent luminescent materials Nb-doped Sr3SiO5:Eu2+, with peak wavelength at ∼580 nm and persistent time more than 7 hours at the 0.32 mcd m−2 threshold value after sunlight radiation has been reported.

Applications of the Theory of Optical Spectroscopy to Numerical Simulations

1993 ◽  
Vol 47 (5) ◽  
pp. 566-574 ◽  
Author(s):  
M. Milosevic ◽  
S. L. Berets
Keyword(s):  
Experimental Data ◽  
Optical Constants ◽  
Incident Angle ◽  
Spectroscopic Technique ◽  
Sample Thickness ◽  
Spectroscopic Techniques ◽  
Spectral Features ◽  
Reflection Spectra ◽  
Experimental Conditions ◽  
Potential Applications

A numerical simulation has been developed to extract the optical constants from experimental spectra. In particular, transmission, internal reflection, and external reflection spectra can be simulated for any incident angle, polarization, and sample thickness. The simulation is used here to determine the optical constants of two materials and to illustrate differences in spectral features that arise from variations in experimental conditions. Other potential applications of this method include determining film thicknesses from experimental data, selecting the best spectroscopic technique for a particular sample, and cross-referencing spectroscopic techniques.

Recent advances in persistent luminescence based on molecular hybrid materials

2021 ◽  
Author(s):  
Rui Gao ◽  
Mohamad S. Kodaimati ◽  
Dongpeng Yan
Keyword(s):  
Hybrid Materials ◽  
Room Temperature ◽  
Delayed Fluorescence ◽  
Luminescent Materials ◽  
Persistent Luminescence ◽  
Room Temperature Phosphorescence ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Theoretical Approaches ◽  
Recent Advances

In this review, we summarize recent advances in establishing persistently luminescent materials from the view of examining experimental and theoretical approaches to room-temperature phosphorescence and thermally-activated delayed fluorescence.

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