The beauty of microscale structures for halide perovskites

A four-panel composite of grayscale SEM images showing a mix of crystalline structures. The top panels feature large, rectangular block crystals interspersed with dense mats of thin, needle-like fibers. The bottom panels provide higher-magnification views of the same materials, emphasizing the sharp, clean edges of the prisms against the delicate needles. Scale bars in yellow indicate sizes ranging from 20µm to 50µm.

Label: The beauty of microscale structures for halide perovskites
Artist: Jue Gong
Description: Solution-synthesized perovskite CH3NH3PbBr3 display high-crystallinity versatile structures at micrometer scale — wires, cubes and plates, which enable well-defined research of this material on the settings of optics, electronics, optoelectronics, such as solar cells, lasers, photodetectors, and light-emitting diodes. This research content was part of a PhD dissertation published previously at: http://commons.lib.niu.edu/handle/10843/21486
Type: Microscope
Artist Affiliation: Postdoctoral Researcher
Department: Physics
Area of Research: Material Physics
Date: 2016