Understanding the origins of ultralong radiative states in metal halide perovskite crystals” Erkki Alarousu, Ahmed El-Zohry, Kwangjae Lee, Bekir Turedi, Ibrahim Dursun, Jun Yin, Ayan, Zhumekenov, Somak Mitra, Iman S Roqan, Chen Yang, Anton Malko, Omar Mohammed, Osman Bakr, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 225, 279 (2018)