Benign‐by‐Design Solventless Mechanochemical Synthesis of Three‐, Two‐, and One‐Dimensional Hybrid Perovskites. Issue 48 (28th October 2016)

• Record Type: Journal Article
• Authors: Jodlowski, Alexander D.; Yépez, Alfonso; Luque, Rafael; Camacho, Luis; de Miguel, Gustavo
• Is Part Of: Angewandte Chemie international edition. Volume 55:Issue 48(2016)
• Page Start: 14972
• Page End: 14977
• Publication Date: 2016-10-28
• Subjects: ball milling -- hybrid materials -- optoelectronic properties -- perovskite phases -- powder X-ray diffraction; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201607397
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: Organic–inorganic hybrid perovskites have attracted significant attention owing to their extraordinary optoelectronic properties with applications in the fields of solar energy, lighting, photodetectors, and lasers. The rational design of these hybrid materials is a key factor in the optimization of their performance in perovskite‐based devices. Herein, a mechanochemical approach is proposed as a highly efficient, simple, and reproducible method for the preparation of four types of hybrid perovskites, which were obtained in large amounts as polycrystalline powders with high purity and excellent optoelectronics properties. Two archetypal three‐dimensional (3D) perovskites (MAPbI3 and FAPbI3 ) were synthesized, together with a bidimensional (2D) perovskite (Gua2 PbI4 ) and a "double‐chain" one‐dimensional (1D) perovskite (GuaPbI3 ), whose structure was elucidated by X‐ray diffraction. Abstract : Mill it ! A straightforward solventless mechanochemical method enabled the preparation of four types of hybrid perovskites in large amounts as polycrystalline powders with high purity and excellent optoelectronic properties. Two archetypal 3D perovskites (MAPbI3 and FAPbI3 ), a 2D perovskite (Gua2 PbI4 ), and a "double‐chain" 1D perovskite (GuaPbI3 ) were synthesized (see picture; MA=methylammonium, FA=formamidinium, Gua=guanidinium).