Many applications, including solar energy conversion, can be enhanced by the
upconversion of low energy photons. A flexible approach towards achieving this is by …

Photochemical upconversion is a process whereby two lower-energy photons are converted
into a higher-energy photon by sensitized triplet–triplet annihilation. While recent interest in …

Visible-to-ultraviolet (UV) triplet–triplet annihilation photochemical upconversion (TTA-UC)
has gained a lot of attention recently due to its potential for driving demanding high-energy …

This perspective article provides a comprehensive but organized tutorial introduction of the
kinetics related to photon upconversion (UC) by triplet–triplet annihilation (TTA)(TTA-UC) …

Photon upconversion (PUC) via triplet–triplet annihilation (TTA) from near-infrared (NIR) to
blue photons could have important applications especially to bioimaging and drug delivery …

In photoluminescence (PL) quenching and triplet fusion upconversion experiments with
fluorescent organic-molecule quenchers, it was revealed that a rod-shaped, phosphine-and …

The rapid photochemical conversion of materials from liquid to solid (ie, curing) has enabled
the fabrication of modern plastics used in microelectronics, dentistry, and medicine …

Photon upconversion is a strategy to generate high-energy excitations from low-energy
photon input, enabling advanced architectures for imaging and photochemistry. Here, we …

Numerous reports hitherto show that the photoluminescence (PL) properties of metal
nanoclusters (NCs) can be enhanced by alloying the metal cores. In particular …

Photon upconversion (UC) from near‐infrared (NIR) to visible has been realized using
singlet‐to‐triplet absorption of sensitizers, which are currently limited to osmium complexes …