scholarly journals Room Temperature Phase Transition in Methylammonium Lead Iodide Perovskite Thin Films Induced by Hydrohalic Acid Additives

ChemSusChem ◽  
2016 ◽  
Vol 9 (18) ◽  
pp. 2656-2665 ◽  
Author(s):  
Chan Myae Myae Soe ◽  
Constantinos C. Stoumpos ◽  
Boris Harutyunyan ◽  
Eric F. Manley ◽  
Lin X. Chen ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Room Temperature ◽  
Temperature Phase ◽  
Lead Iodide ◽  
Temperature Phase Transition ◽  
Methylammonium Lead Iodide ◽  
Hydrohalic Acid

Room-temperature phase transition in Rb2CoCl4. heat capacity measurements

1986 ◽  
Vol 95 (2) ◽  
pp. K101-K103 ◽  
Author(s):  
P. Vaněk ◽  
B. Březina ◽  
M. Havránková ◽  
J. Biroš
Keyword(s):  
Phase Transition ◽  
Heat Capacity ◽  
Room Temperature ◽  
Temperature Phase ◽  
Temperature Phase Transition ◽  
Heat Capacity Measurements

A room-temperature phase transition in maximum microcline

1979 ◽  
Vol 5 (1) ◽  
pp. 83-93 ◽  
Author(s):  
R. E. Openshaw ◽  
B. S. Hemingway ◽  
R. A. Robie ◽  
K. M. Krupka
Keyword(s):  
Phase Transition ◽  
Room Temperature ◽  
Temperature Phase ◽  
Temperature Phase Transition

LARGE ELECTROCALORIC EFFECT IN RELAXOR FERROELECTRICS

2012 ◽  
Vol 02 (03) ◽  
pp. 1230011 ◽  
Author(s):  
SHENG-GUO LU ◽  
QIMING ZHANG
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Electric Field ◽  
Vinylidene Fluoride ◽  
High Energy ◽  
Relaxor Ferroelectrics ◽  
Temperature Phase ◽  
Electrocaloric Effect ◽  
Heating And Cooling ◽  
Temperature Phase Transition

Organic and inorganic relaxor ferroelectrics used for electrocaloric effect (ECE) applications are introduced. Relaxor ferroelectrics offer several advantages for ECE devices, e.g., infinite states without applying electric field, field-induced large polarization, no-hysteresis of heating and cooling, small-hysteresis polarization loss, room temperature phase transition, and broad temperature range. The ECE in relaxor ferroelectrics under a high electric field can be described using a theory similar to that for first-order phase transition materials. Large ECE was observed directly in high-energy electron irradiated poly(vinylidene fluoride–trifluoroethylene) (P(VDF–TrFE)) 68/32 mol% copolymers, P(VDF–TrFE–CFE) (CFE-chlorofluoroethylene) 59.2/33.6/7.2 mol% terpolymers, P(VDF–TrFE–CFE)–P(VDF–CTFE) (CTFE-chlorotrifluoroethylene) 95/5 wt% terpolymer blended films, and (PbLa)(ZrTi)O3 (PLZT) ceramic thin films. ECE reported in Pb(Sc1/2Ta1/2)O3 (PST), Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN–PT) thin films is also summarized. Finally, the perspective of ECE devices is illustrated.

Impact of excess PbI2 on the structure and the temperature dependent optical properties of methylammonium lead iodide perovskites

2018 ◽  
Vol 6 (28) ◽  
pp. 7512-7519 ◽  
Author(s):  
Tobias Meier ◽  
Tanaji P. Gujar ◽  
Andreas Schönleber ◽  
Selina Olthof ◽  
Klaus Meerholz ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Optical Properties ◽  
Electronic Structure ◽  
Binding Energy ◽  
Direct Impact ◽  
Lead Iodide ◽  
Temperature Dependent ◽  
Methylammonium Lead Iodide ◽  
Transition Behaviour

Excess PbI2 in MAPbI3 thin films has no direct impact on the electronic structure but changes the temperature dependence of the exciton binding energy and the phase transition behaviour.

Role of room-temperature phase transition in the electrical properties of (Ba, Ca)(Ti, Zr)O3 ceramics

2011 ◽  
Vol 65 (9) ◽  
pp. 771-774 ◽  
Author(s):  
Jiagang Wu ◽  
Dingquan Xiao ◽  
Wenjun Wu ◽  
Qiang Chen ◽  
Jianguo Zhu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Electrical Properties ◽  
Room Temperature ◽  
Temperature Phase ◽  
Temperature Phase Transition
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