Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

UV–Vis Spectroscopy: Molecular Electronic Transitions

UV–Vis Spectroscopy: Molecular Electronic Transitions

In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this process,...

Photoluminescence: Applications

Photoluminescence: Applications

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...

Debye–Huckel–Onsager Conductance Equation

Debye–Huckel–Onsager Conductance Equation

The Debye-Hückel-Onsager equation is a cornerstone of physical chemistry, providing a method to determine the molar conductance (Λm) and molar conductance at infinite dilution (Λ°m) for uni-univalent electrolytes.Uni-univalent electrolytes are electrolytes that dissociate in solution to produce one cation with a +1 charge and one anion with a –1 charge per formula unit.This equation addresses two crucial phenomena: the asymmetry effect and the electrophoretic effect. According to this equation,...

You might also read

Related Articles

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

Sort by

Same author

The Spatial Pattern of Recurrence in Oral Cavity Cancer Treated With Definitive (chemo)radiotherapy: A Tertiary Centre Multidisciplinary Review.

Clinical oncology (Royal College of Radiologists (Great Britain))·2026

Same author

Repeated sublethal photodynamic inactivation does not increase biofilm formation or induce resistance in Acinetobacter baumannii.

Photodiagnosis and photodynamic therapy·2026

Same author

Predictive value of R2∗ values derived from blood oxygen level-dependent magnetic resonance imaging for lymph node metastasis after neoadjuvant chemotherapy for cervical squamous cell carcinoma.

Clinical radiology·2026

Same author

[Rare case of round cell sarcoma of bone with EWSR1-NFATC2 fusion].

Arkhiv patologii·2025

Same author

Electromagnetic viscosity supported anomalous electric field in the electron diffusion region of collisionless magnetic reconnection.

Nature communications·2025

Same author

[Tongue swabs: a novel tool for tuberculosis screening].

Zhonghua jie he he hu xi za zhi = Zhonghua jiehe he huxi zazhi = Chinese journal of tuberculosis and respiratory diseases·2025

Search research articles

Related Experiment Video

Updated: May 16, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Guided-mode quantum efficiency: a novel optoelectronic characterization technique.

D M N M Dissanayake¹, A Ashraf, Y Pang

¹Sustainable Energy Technologies Department, Brookhaven National Laboratory, Upton, New York 11973, USA.

The Review of Scientific Instruments

|December 5, 2012

Summary

This summary is machine-generated.

We developed a new technique to measure light trapping and charge generation in optoelectronic devices. This method quantifies guided-mode internal quantum efficiency (GIQE) for improved device design and analysis.

More Related Videos

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Related Experiment Videos

Last Updated: May 16, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Area of Science:

Optoelectronics
Materials Science
Physics

Background:

Characterizing light trapping and charge dynamics is crucial for optimizing thin-film optoelectronic devices.
Existing methods often lack the resolution to analyze individual light propagation modes within devices.

Purpose of the Study:

To introduce a novel optoelectronic characterization technique for quantifying light trapping and charge generation/extraction.
To define and measure guided-mode internal quantum efficiency (GIQE) for multilayer thin-film devices.
To enable detailed analysis of light absorption and charge carrier behavior within specific device layers.

Main Methods:

Selective evanescent coupling of light into guided modes of the device.
Measurement of photogenerated current for each guided mode.
Computational modeling of electromagnetic field distribution.
Calculation of guided-mode internal quantum efficiency (GIQE).

Main Results:

Demonstration of a technique to quantify light trapping and photoinduced charge generation and extraction.
Definition and measurement of GIQE, analogous to internal quantum efficiency but for guided modes.
Separation of photoactive layer absorption from parasitic absorption using electromagnetic field modeling.
Insight into spatial distributions of charge carrier extraction and material properties.

Conclusions:

The developed technique allows for precise quantification of light-matter interactions in optoelectronic devices.
GIQE measurement and complementary modeling facilitate improved device design and optimization, particularly for waveguiding photovoltaics.
The technique provides valuable insights into charge carrier dynamics and material quality within the photoactive layer.