Methylamonium-Free Lead Halide thin film degradation GIWAXS time series.

Data collected at the NSLS-II CMS beamline, February 2024.  The dataset is for a particular sample, 28c, which was composed of a glass substrate, and a FA(1-x)CsxPbI3 thin film.  The FA and Cs content were approximately 0.98 and 0.02, respectively. Note that FA = formamidinium.   

The data archive contains a file '28c_in-situ_data.json' with details of each scan file and image file.  The scan files are in simple column format, while the image files are png.  The data represents 18 images, 9 at 0.1° incidence and 9 at 0.25° incidence with a 10 second data collection time with an X-ray area detector.  The images comprise a time series during degradation in 85% relative humidity over a time interval of approximately 22511 seconds (about 6.25 hours). 

See the forthcoming article in the journal MRS Advances for additional details.  The title of the article is:

Degradation processes in methylammonium-free lead-halide perovskite thin films in high-humidity conditions.