氮杂环丁烷铅卤化物Ruddlesden-Popper相

Tian Jiyu, Zysman-Colman Eli, Morrison Finlay D

EaStCHEM School of Chemistry, University of St Andrews, St Andrews KY16 9ST, UK.

Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews KY16 9ST, UK.

Molecules. 2021 Oct 27;26(21):6474. doi: 10.3390/molecules26216474.

A family of Ruddlesden-Popper ( = 1) layered perovskite-related phases, AzPbClBr with composition 0 ≤ ≤ 4 were obtained using mechanosynthesis. These compounds are isostructural with KNiF and therefore adopt the idealised = 1 Ruddlesden-Popper structure. A linear variation in unit cell volume as a function of anion average radius is observed. A tunable bandgap is achieved, ranging from 2.81 to 3.43 eV, and the bandgap varies in a second-order polynomial relationship with the halide composition.

通过机械合成获得了一系列与Ruddlesden-Popper（= 1）层状钙钛矿相关的相，组成为0 ≤ ≤ 4的AzPbClBr。这些化合物与KNiF同构，因此采用理想化的 = 1 Ruddlesden-Popper结构。观察到晶胞体积随阴离子平均半径呈线性变化。实现了可调带隙，范围为2.81至3.43 eV，且带隙与卤化物组成呈二阶多项式关系变化。