Fig. 3From: Metal Halide Perovskite for next-generation optoelectronics: progresses and prospectsa The B-X-B angle of the APbI3 series with different cations at room temperature [30]. b Illustration of the temperature-induced phase transition of CsPbI3 crystal [32]. c Illustration of the pressure-induced phase transition of (C4H9NH3)2PbI4 single crystal [33]. d Illustration of the chemistry-induced phase transition of CsPbBr3 crystal [34]Back to article page