Anharmonicity and Disorder in the Black Phases of Cesium Lead Iodide used for Stable Inorganic Perovskite Solar Cells
Texte intégral
Figure
Documents relatifs
of mixed rods and disks, and in the context of an entropy model for hard cylinders, the data indicate the relative fraction of rods and disks as the KL
Secondary modes can however favor the relevance in the order parameter free energy expansion of higher order terms, which may finally stabilize phases (of lower
- Perspective view of the model of structure proposed for a body-centred cubic phase with space group. Ia3d, from reference
used to calculate the structure factor F(Q) of the Bragg reflections, which includes the static orientational probability density function PO(d2) ; dl represents the
Symmetry transition in the cubic phase of a ternary surfactant
If the sollici- tation is the temperature, its invariance group is the symmetry group of a sphere (Sog); if it is an applied stress field along a n direction, its
Equation (12) has all the features required to describe a second-order lamellar-to-cubic phase transition. the average principal curvatures of the bilayer. However,
a to fl phase transformation kinetics was studied by heat treating 70/30 specimens between 1500 and 1600 °C for different times.. X-ray diffraction analysis using the