Related Experiment Video
Updated: Dec 20, 2025
11:03
How to Quantify the Fraction of Photoactivated Fluorescent Proteins in Bulk and in Live Cells
Published on: January 7, 2019
6.9K
Simple and accurate quantification of quantum yield at the single-molecule/particle level
Analytical Chemistry
|February 6, 2013
Summary
Accurately quantifying photoluminescent material quantum yield is challenging. A new single-molecule/particle method offers precise measurements for diverse materials, including opaque ones.
Area of Science:
- Photoluminescence
- Materials Science
- Nanotechnology
Background:
- Quantum yield is crucial for photoluminescent materials used in optical devices, biosensing, and imaging.
- Accurate quantum yield measurement remains a significant challenge despite existing methods.
Discussion:
- A novel approach enables quantum yield quantification at the single-molecule/particle level.
- This method aligns with conventional optical measurements while offering enhanced capabilities.
- It extends to various fluorescent materials, including challenging nontransparent samples.
Key Insights:
- The new method provides accurate quantum yield determination for organic dyes and quantum dots.
- It overcomes limitations of conventional techniques, particularly for opaque materials.
- Single-molecule/particle analysis offers a powerful tool for material characterization.
Outlook:
- Potential for broader application in characterizing novel fluorescent materials.
- Advancements in optical devices, biosensing, and fluorescence imaging.
- Further refinement of single-particle analysis for complex systems.
