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 …

Conspectus Photon upconversion, the process of converting low-energy photons into high-
energy ones, has been widely applied for solar energy conversion, photoredox catalysis …

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 …

Organic triplet–triplet annihilation upconversion (TTA-UC) materials have considerable
promise in areas as broad as biology, solar energy harvesting, and photocatalysis …

A series of new naphthalimide and phenothiazine-based push–pull systems (NPI-PTZ1–5),
in which we structurally modulate the oxidation state of the sulfur atom in the thiazine ring, ie …

We report a series of highly emissive azatriangulenetrione (TANGO) solids in which the
luminescent properties are controlled by engineering the molecular packing by adjusting the …

Fluorescence analysis is an increasingly important contributor to the early diagnosis of
kidney diseases. To achieve precise visualization of the kidneys and early diagnosis of …

Triplet–triplet annihilation upconversion (TTA-UC) is an unconventional photophysical
process that yields high-energy photons from low-energy incident light and offers pathways …

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