A one-pot method for controlled synthesis and selective etching of organic-inorganic hybrid perovskite crystals

Advancements and Prospects in Perovskite Solar Cells: From Hybrid to All-Inorganic Materials

“…In a recent short communication, the researchers from the Shanghai-China School of Materials Science and Engineering used the one pot method for the controlled synthesis of organic–inorganic hybrid perovskite crystals [ 67 ]. A one pot solvothermal process (see Figure 4 ) for synthesizing single sheet-shaped CH 3 NH 3 PbBr 3 crystals of a size of 100 µm and a thickness between 3 and 8µm was reported.…”

“…However, corrosion problems of halogen elements and the instability of the organic group as a function of temperature and especially humidity are the main challenges to increasing the production scale, as they require more complex structures and processes [ 70 , 71 , 72 , 73 ]. Despite numerous efforts such as passivation treatment and structural modification to increase the stability of hybrid perovskites, problems limiting the performance of these materials have led to the development of structures free of organic groups [ 63 , 64 , 65 , 66 , 67 , 68 ]. In this sense, optoelectronic properties of all-inorganic perovskites were studied based on the understanding of hybrid perovskite properties.…”

Growth of hopper-shaped CsPbCl3 crystals and their exciton polariton emission

“…10 However, when the degree of supersaturation is nely adjusted at an intermediate degree of the interfacial instability, hopper shapes can form in the surface of the perovskite crystals when grown using a solution method. [11][12][13][14][15][16][17][18] Chen et al, 11 Zhang et al 15 and Li et al 17 obtained hopper shaped CH 3 NH 3 PbX 3 (X ¼ Br, I) perovskite crystals, and attributed it to the dissolution of the crystals due to the low concentration of the precursor in the central part. In the work of Hou et al, the local enrichment of methylamine caused the dissolution of the CH 3 NH 3 PbBr 3 crystal surface.…”

“…In the work of Hou et al, the local enrichment of methylamine caused the dissolution of the CH 3 NH 3 PbBr 3 crystal surface. 16 These hopper-shaped crystals are unique in morphologies and usually have some associated properties and applications. 19 In this work, we have grown hopper-shaped CsPbCl 3 crystals for the rst time in a solution droplet dripped on a heated substrate and tentatively clarify the growth mechanism.…”

“…In the work of Hou et al , the local enrichment of methylamine caused the dissolution of the CH 3 NH 3 PbBr 3 crystal surface. 16 These hopper-shaped crystals are unique in morphologies and usually have some associated properties and applications. 19 …”