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

902
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...
902
Variables Affecting Phosphorescence and Fluorescence01:26

Variables Affecting Phosphorescence and Fluorescence

1.1K
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...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Enhancing the strain limit of stretchable organic transistors by Schottky barrier-dominated transport mode.

Nature communications·2026
Same author

Polymer-confined growth of perovskite-PAN composite micro-ring arrays for uniform and stable lasing.

Chemical communications (Cambridge, England)·2026
Same author

Recent advances in ambipolar organic light-emitting transistors: materials and devices.

Chemical Society reviews·2026
Same author

Step-Edge Functionalization by N-Heterocyclic Carbenes Enhances Catalytic Activity in Electrochemical CO<sub>2</sub> Reduction.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Chiral Manganese Halide Co-Crystals: A New Avenue for Efficient Circularly Polarized Luminescence.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Simultaneous enhancement of stretchability, healability and carrier mobility in polymer semiconductors via hierarchical hydrogen-bonded engineering.

National science review·2026

Related Experiment Video

Updated: Dec 14, 2025

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

3.4K

Cocrystallization Tailoring Multiple Radiative Decay Pathways for Amplified Spontaneous Emission.

Geetha Bolla1, Qing Liao2, Saeed Amirjalayer3

  • 1Key Laboratory of Organic Solids, Bejing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing, 100190, China.

Angewandte Chemie (International Ed. in English)
|July 23, 2020
PubMed
Summary

Researchers enhanced organic semiconductor amplified spontaneous emission (ASE) by controlling molecular packing through halogen-bonded cocrystallization. This significantly reduced the ASE threshold, paving the way for improved organic laser materials.

Keywords:
amplified spontaneous emission (ASE)cocrystallizationhalogen bondsorganic semiconductorsradiative decay pathways

More Related Videos

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

19.3K
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

8.8K

Related Experiment Videos

Last Updated: Dec 14, 2025

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

3.4K
Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

19.3K
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

8.8K

Area of Science:

  • Organic electronics
  • Materials science
  • Photophysics

Background:

  • Amplified spontaneous emission (ASE) is crucial for lasing but hindered in organic semiconductors by inefficient energy transfer.
  • Multiple competing radiative decay pathways in organic materials complicate control over ASE.
  • Molecular arrangement significantly impacts radiative decay and ASE properties, yet remains poorly understood.

Purpose of the Study:

  • To achieve controllable molecular packing in organic semiconductors.
  • To enhance radiative decay rate and ASE selectivity.
  • To reduce the amplified spontaneous emission (ASE) threshold in organic materials.

Main Methods:

  • Utilizing halogen-bonded cocrystallization to engineer molecular packing motifs.
  • Investigating the relationship between molecular arrangements, vibration modes, and radiative decay profiles.
  • Analyzing amplified spontaneous emission (ASE) properties and threshold reduction.

Main Results:

  • Achieved controllable molecular packing through cocrystallization.
  • Increased radiative decay rate by ten times and ASE radiative decay selectivity by four times.
  • Significantly decreased the ASE threshold from 223 to 22 μJ/cm², despite a low photoluminescence quantum yield.

Conclusions:

  • Cocrystallization is a powerful strategy for tailoring radiative decay pathways in organic semiconductors.
  • Controlling molecular arrangements is fundamental for developing efficient organic ASE and lasing materials.
  • This work provides insights into optimizing photon energy transfer for advanced organic optoelectronic devices.