Solar energy is an ample renewable energy resource, with photovoltaic (PV) technology
enabling a direct route from light to electricity. Currently, PVs are limited in photon …

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

Triplet–triplet annihilation photon upconversion (TTA-UC) is a process in which triplet
excitons combine to form emissive singlets and holds great promise in biological …

Indium phosphide (InP) colloidal quantum dots (QDs) have been drawn significant attention
as a potentially less toxic alternative to cadmium-based QDs over the past two decades. The …

Colloidal semiconductor nanocrystals have recently emerged as a novel class of
photosensitizers for molecular spin-triplet states. This sensitization strategy combines the …

Developing high‐performance visible‐to‐UV photon upconversion systems based on triplet–
triplet annihilation photon upconversion (TTA‐UC) is highly desired, as it provides a …

Several energy‐demanding photoreactions require harsh UV light from inefficient light
sources. The conversion of low‐energy visible light to high‐energy singlet states via triplet …

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

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

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 …