Abstract
A green-to-blue triplet-triplet annihilation upconversion of 24.5% quantum yield was achieved at a remarkably low 600 μM annihilator concentration in a viscous polymer matrix. This was made possible by utilizing a ZnTPP-based photosensitizer with exceptionally long 11 ms phosphorescence lifetime. Higher 3 mM annihilator concentration resulted in lower 24% upconversion quantum yield.
| Original language | English |
|---|---|
| Pages (from-to) | 14029-14032 |
| Number of pages | 4 |
| Journal | Chemical Communications |
| Volume | 54 |
| Issue number | 99 |
| DOIs | |
| Publication status | Published - 2018 |
| Publication type | A1 Journal article-refereed |
Keywords
- triplet-triplet annihilation
- triplet-triplet energy transfer
- triplet state lifetime
- upconversion
- triplet fusion
Publication forum classification
- Publication forum level 2
ASJC Scopus subject areas
- Catalysis
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- General Chemistry
- Surfaces, Coatings and Films
- Metals and Alloys
- Materials Chemistry