Dielectric phase transition triggered by the order–disorder transformation of cyclopropylamine in a layered organic–inorganic halide perovskite

2018 ◽  
Vol 6 (38) ◽  
pp. 10327-10331 ◽  
Author(s):  
Shiguo Han ◽  
Xitao Liu ◽  
Jing Zhang ◽  
Chengmin Ji ◽  
Zhenyue Wu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid State ◽  
Dielectric Phase ◽  
Organic Hybrid ◽  
Organic Moiety ◽  
Halide Perovskite

We used cyclopropylamine to construct a new layered inorganic–organic hybrid phase transition compound, which undergoes a solid-state phase transition around 273 K induced by the order–disorder transformation of organic moiety.

High switchable dielectric phase transition originating from distortion in inorganic–organic hybrid materials (H2dabco-C2H5) [MIICl4] (M = Co, Zn)

2018 ◽  
Vol 47 (16) ◽  
pp. 5630-5638 ◽  
Author(s):  
Qin Ji ◽  
Linhai Li ◽  
Siyu Deng ◽  
Xingxing Cao ◽  
Lizhuang Chen
Keyword(s):  
Phase Transition ◽  
Hybrid Materials ◽  
Two Phase ◽  
Dielectric Phase ◽  
Organic Hybrid

Two phase transition materials (H2dabco-C2H5)[ZnCl4] and (H2dabco-C2H5)[CoCl4] were synthesized and characterized.

Temperature-Dependent Solid-state Luminescence and Reversible Phase Transition of (n-Bu4N)[Au(SC6H3-3,5-Me2)2]

2003 ◽  
Vol 32 (11) ◽  
pp. 1002-1003 ◽  
Author(s):  
Seiji Watase ◽  
Takayuki Kitamura ◽  
Nobuko Kanehisa ◽  
Masami Nakamoto ◽  
Yasushi Kai ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid State ◽  
Temperature Dependent ◽  
Reversible Phase Transition ◽  
Reversible Phase ◽  
State Luminescence

scholarly journals Unusual piezochromic fluorescence of a distyrylpyrazine derivative crystals: phase transition through [2 + 2] photocycloaddition under UV irradiation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Young-Jae Jin ◽  
Hyosang Park ◽  
Byung-Chun Moon ◽  
Jae Hong Kim ◽  
Wang-Eun Lee ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid State ◽  
Uv Irradiation ◽  
Mechanical Grinding ◽  
Green Color ◽  
H Nmr ◽  
Uv Visible ◽  
Stacking Structure ◽  
Orange Color ◽  
Molecular Stacking

AbstractThe piezochromic fluorescence (FL) of a distyrylpyrazine derivative, 2,3-diisocyano-5,6-distyrylpyrazine (DSP), was investigated in this study. Depending on the recrystallization method, DSP afforded two different crystals with green and orange FL emission. The orange color FL emission crystal (O-form) was easily converted to the green color FL emission one (G-form) by manual grinding. The G-form was also converted to a slightly different orange color FL emission crystal (RO-form) by a weak UV irradiation. When the RO-form was ground again, the G-form was regenerated. The FL colors changed between the G- and RO-forms over several ten times by repeated mechanical grinding and UV irradiation. The FL, UV–visible, 1H-NMR and XRD results showed that the O (or RO)-to-G transformation induced by mechanical stress results from the change of degree of molecular stacking from dense molecular stacking structure to relatively loose molecular stacking structure, whereas the G-to-RO reconversion by UV irradiation results from return to dense molecular stacking structure again due to lattice movement (lattice slipping) allowed by photocycloaddition in solid-state.

scholarly journals Interfacial Trap‐Assisted Triplet Generation in Lead Halide Perovskite Sensitized Solid‐State Upconversion

2021 ◽  
pp. 2100854
Author(s):  
Lili Wang ◽  
Jason J. Yoo ◽  
Ting‐An Lin ◽  
Collin F. Perkinson ◽  
Yongli Lu ◽  
...  
Keyword(s):  
Solid State ◽  
Halide Perovskite ◽  
Lead Halide

Solid-state reaction process for high-quality organometallic halide perovskite thin film

2021 ◽  
Vol 227 ◽  
pp. 111014
Author(s):  
Chien-Chung Hsu ◽  
Sheng-Min Yu ◽  
Kun-Mu Lee ◽  
Chuan-Jung Lin ◽  
Hao-Chien Cheng ◽  
...  
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Solid State Reaction ◽  
Reaction Process ◽  
High Quality ◽  
Halide Perovskite

A-site cation with high vibrational motion in ABX3 perovskite effectively induces dielectric phase transition

2021 ◽  
Author(s):  
Yu-Zhen Wang ◽  
Zhi-Xu Zhang ◽  
Chang-Yuan Su ◽  
Tie Zhang ◽  
Da-Wei Fu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Vibrational Motion ◽  
Dielectric Phase ◽  
Hybrid Perovskite ◽  
Perovskite Material ◽  
A Site

A hybrid perovskite material with dielectric phase transition obtained by the introduction of a moving group.

scholarly journals Solid-State NMR and NQR Spectroscopy of Lead-Halide Perovskite Materials

2020 ◽  
Vol 142 (46) ◽  
pp. 19413-19437
Author(s):  
Laura Piveteau ◽  
Viktoriia Morad ◽  
Maksym V. Kovalenko
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Perovskite Materials ◽  
Halide Perovskite ◽  
Lead Halide

Characterization of some mesogenic alkyl 1-thioglycosides

2002 ◽  
Vol 80 (8) ◽  
pp. 1162-1165 ◽  
Author(s):  
B Henrissat ◽  
G K Hamer ◽  
M G Taylor ◽  
R H Marchessault
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Solid State ◽  
Solid State Nmr ◽  
Liquid Crystalline ◽  
Liquid Crystal Phase ◽  
X Ray Diffraction ◽  
X Ray ◽  
Liquid Crystalline Phases

A series of dodecyl 1-thio-β-D-glycosides has been synthesized and characterized (DSC, NMR, CP MAS, X-ray diffraction) as possible new marking materials with liquid-crystalline properties. These compounds undergo solid to liquid crystal phase transitions at various temperatures, which depend on the nature of the carbohydrate part of the structure. Their liquid-crystalline phases show extreme shear thinning behaviour.Key words: liquid crystal, powder X-ray diffraction, phase transition, thioglycoside, solid-state NMR, marking material

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