Lattice Expansion in Rb-Doped Hybrid Organic-Inorganic Perovskite Crystals Resulting in Smaller Band-Gap and Higher Light-Yield Scintillators. - Maddalena F; Mahyuddin MH; Kowal D; Witkowski ME; Makowski M; Kuddus Sheikh MA; Mahato S; Jȩdrzejewski R; Drozdowski W; Dujardin C; Dang C; Birowosuto MD (Inorganic chemistry, 2023)