16:45 〜 17:00 [C-2-04] Critical Thickness of Epitaxial CH 3NH 3Pb(IBr) 3Thin Films Formed on CH 3NH 3PbBr 3 Single Crystal Substrates K. Kimura1,○T. Matsushita1, Z. Liu1, T. Kondo1 (1.Univ. of Tokyo (Japan)) https://doi.org/10.7567/SSDM.2019.C-2-04