Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Photoluminescence: Applications01:14

Photoluminescence: Applications

1.3K
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
1.3K
Variables Affecting Phosphorescence and Fluorescence01:26

Variables Affecting Phosphorescence and Fluorescence

2.4K
Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
2.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

γ-GC mitigates MASLD by reducing CD36 palmitoylation and plasma membrane translocation mediated by AKT/KLF10/zDHHC7 axis.

Nutrition & metabolism·2026
Same author

A Fault Diagnosis Method for Transmission Networks Based on Multi-Source Information Fusion.

Entropy (Basel, Switzerland)·2026
Same author

Construction and Practice of an Efficient Classroom for Surgical Procedures in a Digital Environment.

Health care science·2026
Same author

Intravenous human umbilical cord-derived mesenchymal stem cell transplantation for ischemic stroke (MERIT): A phase 1 trial.

Cell reports. Medicine·2026
Same author

An Association Among Problematic Smartphone Use, Sleep Quality, Behavioral Engagement and Academic Achievements: A Multiple Mediation Model Based on Large-Scale Data.

Behavioral sciences (Basel, Switzerland)·2026
Same author

Simulation Study of Enhancement-Mode <i>β</i>-Ga<sub>2</sub>O<sub>3</sub> MOSFETs on a Novel P-Ga<sub>2</sub>O<sub>3</sub>/AlN/SiC Substrate.

Micromachines·2026

Related Experiment Video

Updated: Apr 3, 2026

In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM
10:42

In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM

Published on: June 16, 2016

9.8K

Cymbal-shaped phosphor structure for phosphor-converted white LEDs.

Haibo Rao, Caineng Li, Qi Zhang

    Optics Express
    |September 15, 2015
    PubMed
    Summary

    A novel cymbal-shaped phosphor structure significantly improves white LED color uniformity and luminous intensity. This design reduces correlated color temperature deviation and enhances light extraction efficiency compared to traditional methods.

    More Related Videos

    Low-energy Cathodoluminescence for OxyNitride Phosphors
    07:03

    Low-energy Cathodoluminescence for OxyNitride Phosphors

    Published on: November 15, 2016

    11.2K
    Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes
    05:51

    Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

    Published on: November 15, 2016

    8.5K

    Related Experiment Videos

    Last Updated: Apr 3, 2026

    In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM
    10:42

    In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM

    Published on: June 16, 2016

    9.8K
    Low-energy Cathodoluminescence for OxyNitride Phosphors
    07:03

    Low-energy Cathodoluminescence for OxyNitride Phosphors

    Published on: November 15, 2016

    11.2K
    Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes
    05:51

    Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

    Published on: November 15, 2016

    8.5K

    Area of Science:

    • Solid-state lighting
    • Materials science
    • Optoelectronics

    Background:

    • Phosphor-converted white light-emitting diodes (LEDs) are crucial for energy-efficient illumination.
    • Achieving uniform color and high luminous intensity remains a challenge in conventional LED designs.
    • The "blue center" phenomenon, where blue light is concentrated in the center, degrades color quality.

    Purpose of the Study:

    • To investigate a cymbal-shaped phosphor structure for enhanced white LED performance.
    • To improve angle-dependent correlated color temperature (CCT) uniformity.
    • To increase luminous intensity and light extraction efficiency (LEE).

    Main Methods:

    • Fabrication of a cymbal-shaped phosphor structure using an injection process after dispensing.
    • Experimental and theoretical verification of the cymbal-shaped design.
    • Comparison with conventional dispensing phosphor structures.

    Main Results:

    • The cymbal-shaped structure significantly reduced CCT deviation from 315 K to 120 K.
    • Light extraction efficiency (LEE) was enhanced by 8.5% compared to conventional LEDs.
    • The "blue center" phenomenon was effectively eliminated.

    Conclusions:

    • The cymbal-shaped phosphor structure offers superior color uniformity and luminous intensity for white LEDs.
    • This novel design presents a promising advancement in LED technology.
    • The method provides a practical solution for improving the quality of white light emission.