Opportunities for enhancing solar energy harvesting using photon upconversion are
reviewed. The increasing prominence of bifacial solar cells is an enabling factor for the …

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 …

Using light to control matter has captured the imagination of scientists for generations, as
there is an abundance of photons at our disposal. Yet delivering photons beyond the surface …

The exciton, an excited electron–hole pair bound by Coulomb attraction, plays a key role in
photophysics of organic molecules and drives practically important phenomena such as …

Organic semiconductor materials have been widely used in various optoelectronic devices
due to their rich optical and/or electrical properties, which are highly related to their excited …

Triplet–triplet annihilation upconversion (TTA-UC) has been attracting attention in various
fields as a promising tool to efficiently generate a shorter-wavelength photon than incident …

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 …

Triplet–triplet annihilation-based molecular photon upconversion (TTA-UC) is a
photophysical phenomenon that can yield high-energy emitting photons from low-energy …

Solar energy harvesting is among the best solutions for a global transition toward carbon-
neutral energy technologies. The existing solar energy harvesting technologies like …

The effective incorporation of photovoltaic (PV) elements into the urban environment,
specifically in buildings, is a challenging process. Apart from the aesthetic limitations of …