Taiyang Zhang

TL;DR: High crystalline β-CsPbI3 films are obtained with an extended spectral response and enhanced phase stability and made from the treated material have highly reproducible and stable efficiencies reaching 18.4% under 45 ± 5°C ambient conditions.

TL;DR: It is discovered that a small amount of two-dimensional EDAPbI4 perovskite containing the ethylenediamine (EDA) cation stabilizes the α-CsPbI3 to avoid the undesirable formation of the nonperovskites δ phase.

TL;DR: This one-step bifunctional stabilization of perovskite through gradient halide doping and surface organic cation passivation presents a novel and promising strategy to design stable and high performance all-inorganic lead halide.

TL;DR: This MABr-selective Ostwald ripening process improves cell efficiency but also enhances device stability and thus represents a simple, promising strategy for further improving PSC performance with higher reproducibility and reliability.

TL;DR: This work demonstrated that the DMAI is an effective volatile additive to manipulate the crystallization process of CsPbI 3 inorganic perovskite films with different crystal phases and morphologies and confirmed the time-of-flight secondary ion mass spectrometry and nuclear magnetic resonance results confirmed the D MAI additive would not alloy into CsDMAI 3 perovksite 's crystal lattice.