[17a-P4-1~39] 12.3 Functional Materials and Novel Devices

△ [17a-P4-10] Synthesis of hallowed CH₃NH₃PbX₃ perovskite particles by the reprecipitation method

〇(M2)Kazuki Umemoto¹, Hiroshi Ujii^3,4, Tsukasa Yoshida^1,2, Cigdem Yumusak⁵, Markus Clark Scharber⁵, Philipp Stadler⁵, Matthew Schuette White⁶, Sariciftci Niyazi Serdar⁵, Akito Masuhara^1,2 (1.Grad. Sch. of Sci. Eng., Yamagata Univ., 2.ROEL, Yamagata Univ., 3.RIES, Hokkaido Univ., 4.The University of Leuven, 5.Johannes Kepler University Linz, 6.The University of Vermont)

Keywords:Perovskite, Reprecipitation method, Nanocrystals

Synthesis of CH₃NH₃PbX₃ nanocrystals has been intensively researched toward for device application such as photovoltaic and LED. In present study, we have found that the controlling the compatibility of good and poor solvent leads to form hallowed particles. We report the influence of the mixing ratio of good and poor solvent in reprecipitation method for the morphologies of hollowed particles.