Halide perovskites are a compelling candidate for the next generation of clean-energy-
harvesting technologies owing to their low cost, facile fabrication and outstanding …

Metal halide perovskites have shown promising optoelectronic properties suitable for light-
emitting applications. The development of perovskite light-emitting diodes (PeLEDs) has …

Serious performance decline arose for perovskite light-emitting diodes (PeLEDs) once the
active area was enlarged. Here we investigate the failure mechanism of the widespread …

Over the past decade, the global cumulative installed photovoltaic (PV) capacity has grown
exponentially, reaching 591 GW in 2019. Rapid progress was driven in large part by …

Photoluminescence spectroscopy is a widely applied characterization technique for
semiconductor materials in general and halide perovskite solar cell materials in particular. It …

Understanding the nanoscopic chemical and structural changes that drive instabilities in
emerging energy materials is essential for mitigating device degradation. The power …

Metal halide perovskites (MHPs) are a promising class of materials for next‐generation
display and lighting applications. Since the first demonstration of bright electroluminescence …

Halide perovskites perform remarkably in optoelectronic devices. However, this exceptional
performance is striking given that perovskites exhibit deep charge-carrier traps and spatial …

Abstract Quasi-two-dimensional (quasi-2D) perovskites have attracted extraordinary
attention due to their superior semiconducting properties and have emerged as one of the …

Long-wavelength near-infrared light-emitting diodes (NIR LEDs) with peak emission
wavelengths beyond 900 nm are of critical importance for various applications including …