Photochemically deoxygenating solvents for triplet–triplet annihilation photon upconversion operating in air†
Abstract
Sulfoxides and cyclic ureas are photochemically deoxygenating solvents in which the oxidative stress could be released and efficient triplet–triplet annihilation photon upconversion (TTA-UC) can operate in air. Such solvents can be practically screened out by harnessing the property of photo-activated phosphorescence.