Recent progress in utilizing ultrafast light-matter interaction to control the macroscopic
properties of quantum materials is reviewed. Particular emphasis is placed on photoinduced …

The photoexcitation life cycle from incident photon (and creation of photoexcited electron–
hole pair) to ultimate extraction of electrical current is a complex multiphysics process …

Two-dimensional crystals such as graphene and transition-metal dichalcogenides
demonstrate a range of unique and complementary optoelectronic properties,. Assembling …

Infrared light detection and sensing is deeply embedded in modern technology and human
society and its development has always been benefitting from the discovery of various …

Strain-adjusting the band gap of MoS2 using patterned substrates to improve the
photoelectric performance of MoS2 has gradually become a research hotspot in recent …

In semiconductors, photo-excited charge carriers exist as a gas of electrons and holes,
bound electron–hole pairs (excitons), biexcitons and trions,,–. At sufficiently high densities …

Excited state dynamics at the nanoscale provide important insight into the influence of
structural features such as interfaces, defects, and surfaces on material properties. Pump …

The MoS2 photodetector on different substrates stacked via van der Waals force has been
explored extensively because of its great potential in optoelectronics. Here, we integrate …

Colloidal nanocrystals (NCs), especially lead sulfide NCs, are promising candidates for
solution-processed next-generation photodetectors with high-speed operation frequencies …

Double-and triple-walled carbon nanotubes (DWNTs and TWNTs) consist of coaxially-
nested two and three single-walled carbon nanotubes (SWNTs). They act as the geometrical …