The design of nanoparticles is critical for their efficient use in many applications ranging from
biomedicine to sensing and energy. While shape and size are responsible for the properties …

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 …

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

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 …

Hot-carrier solar cells can overcome the Shockley-Queisser limit by harvesting excess
energy from hot carriers. Inorganic semiconductor nanocrystals are considered prime …

The family of solution-processed tin-based perovskites is demonstrated as a new and
superior near-infrared gain medium. Due to the large electron–hole bimolecular …

We investigate the size-dependent optical absorption coefficients of CdSe nanocrystals at
both the band-edge and high within the absorption profile. The absorption properties in both …

Optical whispering‐gallery mode (WGM) microcavities featuring ultrahigh Q factors and
small mode volumes enhance significantly the interaction between light and matter …

In the past few decades, technology has made immeasurable strides to enable visualization,
identification, and quantitation in biological systems. Many of these technological …

We present a family of water-soluble quantum dots (QDs) that exhibit low nonspecific
binding to cells, small hydrodynamic diameter, tunable surface charge, high quantum yield …