Solar‐driven reduction of CO2 to value‐added products represents a sustainable strategy
for mitigating the greenhouse effect and addressing the related green‐energy crisis. Herein …

Direct visualization of ultrafast coupling between charge carriers and lattice degrees of
freedom in photoexcited semiconductors has remained a long-standing challenge and is …

Surface passivation engineering of perovskite films via organic functional small molecules
has emerged as an effective strategy for improving the efficiency and stability of perovskite …

Multiple exciton generation (MEG), the generation of multiple electron–hole pairs from a
single high-energy photon, can enhance the photoconversion efficiency in several …

Solar absorbers featuring prolonged hot-carrier (HC) cooling are highly desired for the
development of HC solar cells. Two-dimensional (2D) hybrid perovskites are known for their …

Hot carriers (HCs) in lead halide perovskites are prone to rapidly relax at the band edge and
waste plentiful photon energy, severely limiting their conversion efficiency as HC …

Humidity‐and moisture‐induced degradation has been a longstanding problem in
perovskite materials, affecting their long‐term stability during applications. Counterintuitively …

Understanding and control of ultrafast non-equilibrium processes in semiconductors is key
to making use of the full photon energy before relaxation, leading to new ways to break …

This theoretical Perspective reviews spin–orbit coupling (SOC), including the Rashba effect
and Dresselhaus effect, in two-dimensional (2D) semiconductors. We first introduce the …

Controlling the high-power laser transmittance is built on the diverse manipulation of
multiple nonlinear absorption (NLA) processes in the nonlinear optical (NLO) materials …