Light harvesting articles from across Nature Portfolio

Fluorescence resonance energy transfer (FRET) is one of the most important fluorescence mechanisms, with multi-step FRET systems enabling sequential energy transfer as seen in natural photosynthetic systems. Here, the authors review recent progress in exploiting discrete supramolecular assemblies to achieve multi-step FRET between donors and multiple acceptors.

Photosynthesis in biological systems occurs in a noisy environment that reduces the lifetime of coherences in the excitation energy transfer. Here the author demonstrate that long-lasting coherences are protected by quantum phase synchronization, realized in dimers by exciton-vibrational coupling where energy dissipation occurs predominantly in resonant anti-symmetric collective modes.

The formation of artificial light-harvesting systems with high donor/acceptor ratios for efficient energy transfer remains challenging. Here, the authors describe a polymeric supramolecular column-based light-harvesting system by modular columnar assembly of donor/acceptor chromophores, enabling superior light-harvesting efficiency and dynamic full-color tunable emission.

Placing an organic material in an optical cavity can enhance exciton transport, but the mechanism is poorly understood. Here, using molecular dynamics simulations, the authors obtained atomistic insights into that mechanism.

Luminescent lanthanide complexes are promising materials for use in displays and sensors, however, these materials often undergo thermal quenching. Here, the authors synthesize and characterize a terbium dinuclear phosphine oxide-bridged phenanthrene complex, which exhibits thermally-enhanced emission.

Reliably identifying transient intermediates is crucial to elucidate chemical reaction mechanisms. Here, the authors use femtosecond Fe Kβ main line and valence-to-core x-ray emission spectroscopy to characterize a short-lived intermediate of the aqueous ferricyanide photo-aquation reaction.

Floatable hydrogel photocatalytic platform at the air–water interface features practical advantages for scale-up of solar H₂ production with light delivery, supply of water, and instantaneous gas separation.

The process of thermally activated delayed fluorescence (TADF) converts non-radiative triplet states into emissive singlet states. Herein we outline the fundamentals of TADF, some of the recent progress in understanding the key material properties responsible for promoting TADF and finally discuss some remaining challenges for the  potential applications of this phenomenon.

Vibronic coherences can guide a synthetic control of the lifetime of the excited states in iron(ii)-based complexes.

The flow of energy in Earth's primary light harvesters — photosynthetic pigment–protein complexes — needs to be heavily regulated, as the sun's energy supply can vary over many orders of magnitude. Observing hundreds of individual light-harvesting complexes has now provided important insights into the machinery that regulates this process.