DMSO-Free Tin Halide Perovskites for Indoor Photovoltaics.

Indoor photovoltaic (IPV) technology has emerged as an effective strategy to sustainably power batteryless Internet of Things (IoT) devices. Though tin perovskite solar cells offer competitive IPV performance, their effectiveness is often compromised by Sn oxidation, particularly when processed with dimethyl sulfoxide (DMSO) solvent. This work explored the IPV performance of DMSO-free tin perovskites FASnI Br by tuning the halide composition.

Photodegradation of 2D Ruddlesden-Popper Perovskites: Consequences and Design Principles for Photoelectrochemical Applications.

Halide perovskites (HaP), with their exceptional optoelectronic properties and high-power conversion efficiencies in photovoltaic devices, hold promise for photoelectrochemical (PEC) applications in green fuel and chemical production. However, their stability in aqueous environments remains a challenge. This study investigates the stability and degradation mechanisms of the 2D Ruddlesden-Popper phase phenylethyl ammonium lead iodide (PEA PbI) thin films in aqueous electrolytes under dark and illuminated conditions.

Co-Doping Approach for Enhanced Electron Extraction to TiO for Stable Inorganic Perovskite Solar Cells.

Inorganic perovskite CsPbI solar cells hold great potential for improving the operational stability of perovskite photovoltaics. However, electron extraction is limited by the low conductivity of TiO, representing a bottleneck for achieving stable performance. In this study, a co-doping strategy for TiO using Nb(V) and Sn(IV), which reduces the material's work function by 80 meV compared to Nb(V) mono-doped TiO, is introduced.

Tailored Crystallization Dynamics for Efficient and Stable DMSO-Free Tin Perovskite Solar Cells.

Tin perovskite solar cells are emerging as a sustainable lead-free alternative in thin film photovoltaics. DMSO-free processed tin perovskites are gaining interest due to the detrimental effects of DMSO on tin oxidation. However, replacing DMSO with other solvents remains challenging due to the accelerated crystallization dynamics in non-DMSO systems.