Related Experiment Video
Updated: Feb 1, 2026

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
Structural stability and optical properties of two-dimensional perovskite-like CsPb2Br5 microplates in response to
Zhiwei Ma1, Fangfang Li, Guangyu Qi
1State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China. xguanjun@jlu.edu.cn.
Abstract:
Here, we report the structural stability and visible light response of two-dimensional (2D) layered perovskite-like CsPb2Br5 microplates (MPs) under high pressure. In situ high-pressure emission, optical absorption, and angle dispersive synchrotron X-ray diffraction indicated that CsPb2Br5 MPs experienced an isostructural phase transformation at roughly 1.6 GPa. The shrinkage of Pb-Br bond lengths and the marked change of Br-Pb-Br bond angles within the lead-bromide pentahedral motif were responsible for the pressure-induced structural modulation and the sudden band-gap change of CsPb2Br5 MPs.
Related Concept Videos
Stability of structures
Properties of Enantiomers and Optical Activity
Structural Properties and Dimensions of Lumber
The strength characteristics of...
Structure and Physical Properties of Alkynes
In nature, compounds containing both carbon and hydrogen are known as "hydrocarbons". Aliphatic hydrocarbons are compounds whose molecules contain saturated single bonds (i.e., alkanes) or unsaturated double or triple bonds. Alkenes contain carbon–carbon double bonds and have a structural formula CnH2n. Unsaturated hydrocarbons containing carbon–carbon triple bonds are called "alkynes" and are structurally represented by the formula CnH2n-2.
The...
RNA Stability
Nuclear Stability
To hold positively charged protons together...

