Direct observation of triplet energy transfer from semiconductor nanocrystals
Abstract
Most molecules adopt a singlet spin configuration: All their electrons are arranged in pairs. Unpaired triplet states engage in a variety of useful reactions but are hard to produce. Quantum mechanics dictates that photo-excitation from singlet to triplet states is inefficient. Instead, chemists rely on sensitizers, which populate the triplet states of their neighbors through energy transfer after absorbing light themselves. Mongin et al. now show that certain nanoparticles can act as triplet sensitizers.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 22, 2016
- Source ID
- 10.1126/science.aad6378
Entities
People
- Cédric Mongin
- Felix Castellano
- Mikhail Zamkov
- Natalia Razgoniaeva
- Sofia Garakyaraghi
Organizations
- Air Force Office of Scientific Research
- Argonne National Laboratory
- Bowling Green State University
- National Science Foundation
- North Carolina State University