Cs2AgBiBr6, as a benchmark lead‐free double perovskite, has emerged as a promising
alternative to lead‐based perovskites because of its high stability, non‐toxicity, exceptional …

Electrical doping (that is, intentional engineering of carrier density) underlies most energy-
related and optoelectronic semiconductor technologies. However, for the intensely studied …

Longevity has been a long-standing concern for hybrid perovskite photovoltaics. We
demonstrate high-resilience positive-intrinsic-negative perovskite solar cells by …

Halide double perovskites, A2MIMIIIX6, offer a vast chemical space for obtaining unexplored
materials with exciting properties for a wide range of applications. The photovoltaic …

Charge carrier mobility is a fundamental property of semiconductor materials that governs
many electronic device characteristics. For metal halide perovskites, a wide range of charge …

Although lead-based inorganic–organic perovskite solar cells (PSCs) have delivered the
highest power conversion efficiency (PCE) to date of 25.2%, the toxic nature of lead and …

Since their introduction in 2017, the efficiency of lead‐free halide perovskite solar cells
based on Cs2AgBiBr6 has not exceeded 3%. The limiting bottlenecks are attributed to a low …

Double perovskites have recently emerged as possible alternatives to lead-based halide
perovskites for photovoltaic applications. In particular, Cs2AgBiBr6 has been the subject of …

Cs2AgBiBr6 is a promising metal halide double perovskite offering the possibility of efficient
photovoltaic devices based on lead-free materials. Here, we report on the evolution of …

Perovskite solar cells (PSCs) have achieved a high power conversion efficiency (PCE) with
a credible certified value over 25%. More efforts have been devoted to the development of …