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 …

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

Photoelectrochemical (PEC) water splitting is an ideal method to produce clean hydrogen.
Develo** photoelectrodes that fulfill the PEC water-splitting criteria has become the …

Photon upconversion (UC), the process of combining two or more low-energy photons to
generate a higher-energy excited state, is of interest for applications ranging from imaging to …

The energy of photons, that is, the wavelength of light, can be upgraded through interactions
with materials in a process called photon upconversion. Although upconversion in organic …

Conspectus Molecules and materials derived from self-assembled extended π-systems
have strong and reversible optical properties, which can be modulated with external stimuli …

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 …

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

Photon upconversion via triplet–triplet annihilation (TTA) has achieved high efficiencies in
solution and within polymer matrices that support molecular migration systems. It has …

Molecular photon upconversion via triplet–triplet annihilation (TTA-UC) is an intriguing
strategy to harness sub-bandgap photons and surpass the Shockley–Queisser (SQ) limit for …