scholarly journals Structural phase transitions and photoluminescence mechanism in a layer of 3D hybrid perovskite nanocrystals

AIP Advances ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 065028 ◽  
Author(s):  
Yuri D. Glinka ◽  
Rui Cai ◽  
Xian Gao ◽  
Dan Wu ◽  
Rui Chen ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
Perovskite Nanocrystals ◽  
Hybrid Perovskite ◽  
Photoluminescence Mechanism

Doping Induces Structural Phase Transitions in All-Inorganic Lead Halide Perovskite Nanocrystals

2020 ◽  
Vol 2 (4) ◽  
pp. 367-375 ◽  
Author(s):  
Ju-Ping Ma ◽  
Jia-Kai Chen ◽  
Jun Yin ◽  
Bin-Bin Zhang ◽  
Qing Zhao ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
Perovskite Nanocrystals ◽  
Inorganic Lead ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals Structures, Phase Transitions and Tricritical Behavior of the Hybrid Perovskite Methyl Ammonium Lead Iodide

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
P. S. Whitfield ◽  
N. Herron ◽  
W. E. Guise ◽  
K. Page ◽  
Y. Q. Cheng ◽  
...  
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Structural Phase ◽  
Photovoltaic Performance ◽  
Orthorhombic Phase ◽  
Structural Phase Transitions ◽  
Lead Iodide ◽  
First Order ◽  
Hybrid Perovskite ◽  
The Impact

Abstract We have examined the crystal structures and structural phase transitions of the deuterated, partially deuterated and hydrogenous organic-inorganic hybrid perovskite methyl ammonium lead iodide (MAPbI3) using time-of-flight neutron and synchrotron X-ray powder diffraction. Near 330 K the high temperature cubic phases transformed to a body-centered tetragonal phase. The variation of the order parameter Q for this transition scaled with temperature T as Q ∼ (Tc−T)β, where Tc is the critical temperature and the exponent β was close to ¼, as predicted for a tricritical phase transition. However, we also observed coexistence of the cubic and tetragonal phases over a range of temperature in all cases, demonstrating that the phase transition was in fact first-order, although still very close to tricritical. Upon cooling further, all the tetragonal phases transformed into a low temperature orthorhombic phase around 160 K, again via a first-order phase transition. Based upon these results, we discuss the impact of the structural phase transitions upon photovoltaic performance of MAPbI3 based solar cells.

(C3N2H5)3Sb2I9 and (C3N2H5)3Bi2I9 : Ferroelastic Lead-Free Hybrid Perovskite-Like Materials as the Potential Semiconducting Absorbers

2022 ◽  
Author(s):  
Przemyslaw Szklarz ◽  
Ryszard Jakubas ◽  
Wojciech Medycki ◽  
Anna Gągor ◽  
Jakub Cichos ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Structural Phase ◽  
Lead Free ◽  
Structural Phase Transitions ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite ◽  
Hybrid Crystals

We have synthesised and characterised novel organic-inorganic hybrid crystals: (C3N2H5)3Sb2I9 and (C3N2H5)3Bi2I9 (PSI and PBI). The thermal DSC, and TG analyses indicate four structural phase transitions (PTs) at 366.8/366.2, 274.6/275.4,...

Phonons and magnons under the sequential structural phase transitions in La2NiO4

1991 ◽  
Vol 185-189 ◽  
pp. 895-896 ◽  
Author(s):  
S. Sugai ◽  
S. Hosoya ◽  
T. Kajitani ◽  
T. Fukuda ◽  
S. Onodera
Keyword(s):  
Phase Transitions ◽  
Structural Phase ◽  
Structural Phase Transitions

Structural phase transitions of LaScO3 from first principles

2021 ◽  
Vol 26 ◽  
pp. 102048
Author(s):  
Craig A.J. Fisher ◽  
Ayako Taguchi ◽  
Takafumi Ogawa ◽  
Akihide Kuwabara
Keyword(s):  
Phase Transitions ◽  
First Principles ◽  
Structural Phase ◽  
Structural Phase Transitions
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