The highest power conversion efficiency of perovskite solar cells is beyond 22%. Charge
transport layers are found to be critical for device performance and stability. A traditional …

Perovskite photovoltaic technology holds great promise for the solar energy industry due to
its high efficiency and fascinating potentialities for low-cost production. However …

Low temperature solution processed planar‐structure perovskite solar cells gain great
attention recently, while their power conversions are still lower than that of high temperature …

Quantum dots are a unique class of emitters with size‐tunable emission wavelengths,
saturated emission colors, near‐unity luminance efficiency, inherent photo‐and thermal …

Lead halide perovskite solar cells have recently attracted tremendous attention because of
their excellent photovoltaic efficiencies. However, the poor stability of both the perovskite …

It is clear that the current energy regimen, which relies on nonrenewable and polluting
energy sources, has unsustainable consequences for societal, economical, geopolitical, and …

Ion migration has been proposed as a possible cause of photovoltaic current–voltage
hysteresis in hybrid perovskite solar cells. A major objection to this hypothesis is that …

Organic solar cells (OSCs) have shown great promise as low‐cost photovoltaic devices for
solar energy conversion over the past decade. Interfacial engineering provides a powerful …

Perovskite compounds have attracted recently great attention in photovoltaic research. The
devices are typically fabricated using condensed or mesoporous TiO2 as the electron …

In this review, we summarize the latest developments in solution-processed interfacial layers
that have contributed to the significantly improved performance of polymer and perovskite …