Photon upconversion with indium phosphide quantum dots enables high-energy photoreactions using visible light.

ABSTRACT: Photochemical reactions that rely on high-energy photons are limited by low solar abundance in the UV region and undesired photodecomposition. Photon upconversion processes, particularly triplet-triplet annihilation-based upconversion (TTA-UC), provide an alternate pathway to enable the use of low-energy, abundant visible and near-infrared (NIR) light for chemical transformations that typically require high-energy UV light. In this context, quantum dot (QD)-sensitized TTA-UC systems offer distinct advantages with respect to a larger anti-Stokes shift, enhanced upconversion quantum yield, and superior photostability. However, the successful application of QD-sensitized upconversion energy in photocatalysis remains limited, especially for high-energy reactions requiring UV-active catalysts.

SUBMITTER: Chakraborty IN 

PROVIDER: S-EPMC12613422 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature