Efficient photon upconversion at remarkably low annihilator concentrations in a liquid polymer matrix: when less is more
Research output: Contribution to journal › Article › Scientific › peer-review
|Number of pages||4|
|Publication status||Published - 2018|
|Publication type||A1 Journal article-refereed|
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.
ASJC Scopus subject areas
- triplet-triplet annihilation, triplet-triplet energy transfer, triplet state lifetime, upconversion, triplet fusion