Related Experiment Video
Updated: Dec 13, 2025
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
8.8K
Quantifying the Overall Efficiency of Circularly Polarized Emitters
Lorenzo Arrico1, Lorenzo Di Bari1, Francesco Zinna1
1Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124, Pisa, Italy.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|July 30, 2020
Summary
A new metric, CPL brightness (BCPL), is introduced to better evaluate circularly polarized luminescence (CPL) emitters. This metric combines existing factors to provide a more complete efficiency assessment for CPL applications.
Area of Science:
- Materials Science
- Photochemistry
- Organic Chemistry
Background:
- Circularly polarized luminescence (CPL) molecular emitters are increasingly developed for applications requiring high efficiency.
- Current efficiency metrics, such as the dissymmetry factor (glum), are insufficient for a comprehensive evaluation.
Purpose of the Study:
- To introduce a new metric, CPL brightness (BCPL), for a more complete assessment of CPL emitter efficiency.
- To analyze the distribution of BCPL values across various classes of CPL molecular emitters.
Main Methods:
- The proposed CPL brightness (BCPL) metric integrates the absorption extinction coefficient, quantum yield, and glum factor.
- BCPL values were calculated for over 180 reported CPL compounds.
Main Results:
- A dataset of BCPL values for 180+ CPL emitters was compiled and analyzed.
- Data distribution analysis was performed for major classes of CPL molecular emitters.
Conclusions:
- CPL brightness (BCPL) offers a more comprehensive evaluation of CPL emitter performance than glum alone.
- This new metric can guide the selection of molecular systems for specific CPL applications and contextualize new discoveries.
More Related Videos
Related Concept Videos
03:09Measuring Reaction Rates
28.3K
Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical...
28.3K
01:22Intensity Of Electromagnetic Waves
5.5K
The energy transport per unit area per unit time, or the Poynting vector, gives the energy flux of an electromagnetic wave at any specific time. For a plane electromagnetic wave with E0 and B0 as the peak electric and magnetic fields and traveling along the x-axis, the time-varying energy flux can be given by the following equation:
5.5K
01:10Dual Nature of Electromagnetic (EM) Radiation
3.4K
Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the number of...
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the number of...
3.4K