Organic semiconductors have become essential parts of thin-film electronic devices,
particularly as hole transport layers (HTLs) in perovskite solar cells (PSCs) where they …

Impedance spectroscopy (IS) provides a detailed understanding of the dynamic phenomena
underlying the operation of photovoltaic and optoelectronic devices. Here we provide a …

Record power conversion efficiencies (PCEs) of perovskite solar cells (PSCs) have been
obtained with the organic hole transporter 2, 2′, 7, 7′-tetrakis (N, N-di-p-methoxyphenyl …

Highly efficient halide perovskite solar cells generally rely on lithium-doped organic hole
transporting layers that are thermally and chemically unstable, in part because of migration …

Spiro-OMeTAD, one of the most widely used hole-transport materials (HTMs) in
optoelectronic devices, typically requires chemical do** with a lithium compound (LiTFSI) …

In just over a decade, certified single-junction perovskite solar cells (PSCs) boast an
impressive power conversion efficiency (PCE) of 26.1%. Such outstanding performance …

Perovskite solar cells (PSCs) have been brought into sharp focus in the photovoltaic field
due to their excellent performance in recent years. The power conversion efficiency (PCE) …

Despite rapid advancements in the photovoltaic efficiencies of perovskite solar cells (PSCs),
their operational stability remains a significant challenge for commercialization. This …

In recent years, organic‐inorganic halide perovskites are now emerging as the most
attractive alternatives for next‐generation photovoltaic devices, due to their excellent …

Perovskite solar cells (PSCs) have reached a certified 25.2% efficiency in 2019 due to their
high absorption coefficient, high carrier mobility, long diffusion length, and tunable direct …