Metal-halide perovskites have rapidly emerged as one of the most promising materials of the
21st century, with many exciting properties and great potential for a broad range of …

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

The field of nanocrystal quantum dots (QDs) is already more than 30 years old, and yet
continuing interest in these structures is driven by both the fascinating physics emerging …

I), which were very recently reported as a high efficiency luminescent materials.[19] We
observed low-threshold, wavelengthtunable, and ultrastable stimulated emission (SE) from …

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

Two-photon-pumped lasers have been regarded as a promising strategy to achieve
frequency up-conversion for situations where the condition of phase matching required by …

Since their inception 18 years ago, electrically driven colloidal quantum-dot light-emitting
devices (QD-LEDs) have increased in external quantum efficiency from less than 0.01% to …

In the past few years, metal halide perovskite quantum dots and nanocrystals have been
extensively explored due to their unique optoelectronic properties and extensive application …

Solution-processed inorganic and organic materials have been pursued for more than a
decade as low-threshold, high-gain lasing media, motivated in large part by their tunable …

Whispering gallery mode (WGM) optical microresonators have attracted intense interests in
the past decades. The combination of high quality factors (Q) and small mode volumes of …