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

Photoelectric Effect02:26

Photoelectric Effect

41.1K
When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
41.1K
Transmission Electron Microscopy01:15

Transmission Electron Microscopy

8.0K
In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400...
8.0K
Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

5.1K
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
5.1K
Photoluminescence: Applications01:14

Photoluminescence: Applications

1.2K
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...
1.2K

You might also read

Related Articles

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

Sort by
Same author

Realization of a chiral photonic-crystal cavity with broken time-reversal symmetry.

Nature communications·2026
Same author

Near-unity broadband photonic metamaterial absorber for thermoelectric energy harvesting in Space.

Physical chemistry chemical physics : PCCP·2026
Same author

Noise Management of Surface-Enhanced Raman Spectroscopy Using Two-Dimensional Materials.

ACS sensors·2026
Same author

Transcatheter Valve-in-Valve and Iatrogenic ASD Closure for Tricuspid Thrombosis in Heparin-Induced Thrombocytopenia.

JACC. Case reports·2026
Same author

Clinical Presentation and Management of Tubulointerstitial Nephritis and Uveitis Syndrome: A Case Series.

Cureus·2026
Same author

Optimizing irrigation and nitrogen levels for improved soil nitrogen dynamics and use efficiency in temperate ecology of Kashmir.

Scientific reports·2025

Related Experiment Video

Updated: Apr 3, 2026

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings
09:01

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

Published on: April 16, 2017

8.2K

Light-trapping in photon enhanced thermionic emitters.

Jerónimo Buencuerpo, José M Llorens, Pierfrancesco Zilio

    Optics Express
    |September 26, 2015
    PubMed
    Summary
    This summary is machine-generated.

    Optimized photonic crystals boost photon-enhanced thermionic emitter efficiency over 10%. Light-trapping structures enhance performance, but vacuum gap must match solar concentration for optimal results.

    More Related Videos

    Trapping of Micro Particles in Nanoplasmonic Optical Lattice
    07:20

    Trapping of Micro Particles in Nanoplasmonic Optical Lattice

    Published on: September 5, 2017

    7.1K
    Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
    10:54

    Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

    Published on: July 8, 2013

    15.4K

    Related Experiment Videos

    Last Updated: Apr 3, 2026

    High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings
    09:01

    High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

    Published on: April 16, 2017

    8.2K
    Trapping of Micro Particles in Nanoplasmonic Optical Lattice
    07:20

    Trapping of Micro Particles in Nanoplasmonic Optical Lattice

    Published on: September 5, 2017

    7.1K
    Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
    10:54

    Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

    Published on: July 8, 2013

    15.4K

    Area of Science:

    • Optics and Photonics
    • Materials Science
    • Solid-State Physics

    Background:

    • Photon-enhanced thermionic emission (PETE) offers a promising route for solar energy conversion.
    • Optimizing device structures is crucial for maximizing PETE efficiency.

    Purpose of the Study:

    • To optimize photonic crystal structures for a photon-enhanced thermionic emitter.
    • To investigate the impact of light-trapping structures on device performance.

    Main Methods:

    • Simulations using realistic parameter values for a p-type Gallium Arsenide (GaAs) device.
    • Optimization of photonic crystal designs for enhanced light absorption and emission.

    Main Results:

    • Achieved a device efficiency exceeding 10%.
    • Light-trapping photonic crystals improved performance by 2% compared to anti-reflective coatings.
    • Device efficiency approached Lambertian absorber performance but did not reach its maximum.

    Conclusions:

    • Photonic crystals are effective in enhancing PETE performance.
    • Careful dimensioning of the vacuum gap is necessary, dependent on solar irradiance concentration, to maintain efficiency above 10%.