Optically Transparent Lead Halide Perovskite Ceramics

27 October 2023, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


In this report, we utilize room-temperature uniaxial pressing at applied loads achievable with low-cost, laboratory-scale presses to fabricate freestanding CH3NH3PbX3 (X-=Br- ,Cl-) polycrystalline ceramics with millimeter thicknesses and optical transparency up to ~70% in the infrared. As-fabricated perovskite ceramics can be produced with desirable form factors (i.e., size, shape, and thickness) and high quality surfaces without any post-processing (e.g., cutting or polishing). We additionally expect this method to be broadly applicable to a large swath of metal halide perovskites and not just the compositions shown here. Highly scalable methods to produce polycrystalline lead halide perovskite ceramics will enable key advancements in critical perovskite-based technologies (e.g., direct X-ray/-ray detectors, scintillators, nonlinear optics). In addition to ceramic fabrication, we analyze microstructure—optical property relationships through detailed experiments (e.g., transmission measurements, electron microscopy, X-ray tomography, optical profilometry, etc.) as well as modelling based on Mie light scattering theory. In tandem, experiments and modelling illustrate the effects of scattering sources on transparency and reveal microstructural parameters necessary to attain near optimal transparency in perovskite polycrystalline ceramics.


Optically Transparent Ceramics
Lead Halide Perovskites
Uniaxial Pressing


Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.