The field of solution-processed semiconductors has made great strides; however, it has yet
to enable electrically driven lasers. To achieve this goal, improved materials are required …

BACKGROUND The Information Age was founded on the semiconductor revolution, marked
by the growth of high-purity semiconductor single crystals. The resultant design and …

Semiconductor nanocrystals represent a promising class of solution-processable optical-
gain media that can be manipulated via inexpensive, easily scalable colloidal techniques …

The invention and development of the laser have revolutionized science, technology, and
industry. Metal halide perovskites are an emerging class of semiconductors holding …

Lead halide perovskites have emerged as excellent optical gain materials for solution-
processable and flexible lasers. Recently, continuous-wave (CW) optically driven lasing was …

The external quantum efficiencies of state-of-the-art colloidal quantum dot light-emitting
diodes (QLEDs) are now approaching the limit set by the out-coupling efficiency. However …

Colloidal quantum dots (QDs) combine the superior light-emission characteristics of
quantum-confined semiconductors with the chemical flexibility of molecular systems. These …

Perovskite quantum dots (PQDs) attract significant interest in recent years because of their
unique optical properties, such as tunable wavelength, narrow emission, and high …

Miniaturized solid‐state lasers with a single longitudinal mode are vital for various photonic
applications. Here we prepare red‐emissive carbon dots (CDs) with a photoluminescence …

Photolithography is an important manufacturing process that relies on using photoresists,
typically polymer formulations, that change solubility when illuminated with ultraviolet light …