Highlights•Mechanism of TTA-UC.•Development of sensitizer and activator.•Host material
development.•Bioimaging and biodetection with TTA-UC.Upconversion of light has attracted …

Sensitized triplet–triplet annihilation (TTA) is a promising mechanism for solar energy
conversion, but so far its application has been practically completely limited to organic …

Sensitized triplet–triplet annihilation upconversion offers an attractive possibility to replace a
high-energy photon by two photons with lower energy through the combination of a light …

Photochemical applications based on intermolecular photoinduced energy triplet state
transfer require photosensitizers with strong visible absorptivity and extended triplet excited …

Long triplet lifetimes of excited photosensitizers are essential for efficient energy transfer
reactions in water, given that the concentrations of dissolved oxygen and suitable acceptors …

A heavy-atom-free triplet sensitizer suitable for triplet–triplet annihilation-based photon
upconversion was developed from the thermally activated delayed fluorescence (TADF) …

A highly emissive Ag (I) complex comprising 2, 9-dimethyl-1, 10-phenanthroline (dmp) and
bis [(2-diphenylphosphino) phenyl] ether (dpep) ligands was synthesized, characterized and …

Photocatalysis holds great promise for changing the way value-added molecules are
currently prepared. However, many photocatalytic reactions suffer from quantum yields well …

Hitherto, great strides have been made in the development of organic systems that exhibit
triplet–triplet annihilation-induced photon-energy upconversion (TTA-UC). Yet, the exact role …

MLCT sensitizers in photochemical upconversion: past, present, and potential future
directions - Dalton Transactions (RSC Publishing) DOI:10.1039/C5DT03212A Royal …