Within the range of photon energies illuminating the Earth's surface, absorption of a photon
by a conventional photovoltaic semiconductor device results in the production of a single …

During the past two decades, great effort has been dedicated to two-photon excited colloidal
quantum dots (QDs) because of their unique optical properties and significant applications …

Spatial confinement can create relaxation bottlenecks by mismatch between electronic and
vibrational frequencies. This hypothesis motivated discovery of multiple excitons, which …

Quantum dot (QD) solids represent a new type of condensed matter drawing high
fundamental and applied interest. Quantum confinement in individual QDs, combined with …

A theory of the electronic-structure and excitonic absorption spectra of PbS and PbSe
nanowires and nanorods in the framework of a four-band effective-mass model is presented …

Phonon-induced dephasing processes that govern optical line widths, multiple exciton (ME)
generation (MEG), and ME fission (MEF) in semiconductor quantum dots (QDs) are …

The article presents the current perspective on the nature of photoexcited states in
semiconductor quantum dots (QDs). The focus is on multiple excitons and photo-induced …

We study the structure of electronic states in individual PbS nanocrystal quantum dots by
scanning tunneling spectroscopy (STS) using one-to-two monolayer nanocrystal films …

Low-dimensional molybdenum disulfide (MoS2) materials such as nanosheets and
nanodots exhibit exotic optical, electronic, and catalytic properties, but so far the limited …

Charge carriers trapped at localized surface defects play a crucial role in quantum dot (QD)
photophysics. Surface traps offer longer lifetimes than band-edge emission, expanding the …