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 …

Upconverting infrared light into visible light via the triplet-triplet annihilation process in solid
state is important for various applications including photovoltaics, photodetection, and …

Photon upconversion via triplet–triplet annihilation has the potential to improve the
performance of photovoltaics, as additional sub-bandgap photons can be harnessed …

The process of photon upconversion promises importance for many optoelectronic
applications, as it can result in higher efficiencies and more effective photon management …

The limited solar spectrum utilization hinders the further amelioration of the performance of
perovskite solar cells (PVSCs). An up-conversion (UC) process extends the spectral …

Photochemical upconversion of green to blue light is demonstrated in thin films of
nanostructured alumina stained with a metalloporphyrin sensitizer. The pores of the …

Perovskite-sensitized triplet–triplet annihilation (TTA) upconversion (UC) holds potential for
practical applications of solid-state UC ranging from photovoltaics to sensing and imaging …

Photon upconversion via triplet–triplet annihilation (TTAUC) converts two low-energy triplet
excitons into high-energy photon emission from a singlet. Hybrid TTAUC systems integrating …

Upconversion of near-infrared light into the visible has achieved limited success in
applications due to the difficulty of creating solid-state films with high external quantum …