Halogen substitution regulates the phase transition temperature and band gap of semiconductor compounds

2020 ◽  
Vol 56 (11) ◽  
pp. 1697-1700 ◽  
Author(s):  
Hui-Hui Li ◽  
Chang-Feng Wang ◽  
Ya-Xing Wu ◽  
Fan Jiang ◽  
Chao Shi ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Band Gap ◽  
Phase Transition Temperature ◽  
Semiconductor Compounds ◽  
Semiconductor Properties

Halogen substitution creates a promising platform for designing and optimizing materials with a combination of attractive dielectric and semiconductor properties.

scholarly journals Mg/W-codoped vanadium dioxide thin films with enhanced visible transmittance and low phase transition temperature

2015 ◽  
Vol 3 (26) ◽  
pp. 6771-6777 ◽  
Author(s):  
Ning Wang ◽  
Shiyu Liu ◽  
X. T. Zeng ◽  
Shlomo Magdassi ◽  
Yi Long
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Transition Temperature ◽  
Charge Carrier ◽  
Band Gap ◽  
Phase Transition Temperature ◽  
Vanadium Dioxide ◽  
Visible Transmittance ◽  
Vanadium Dioxide Thin Films

Mg2+ and W6+ cations were first codoped into the VO2 lattice, resulting in a widened photon band gap and h+/e− charge carrier accumulation. These effects enhanced the thermochromic performance with a high visible transmission (∼80%) and a low phase transition temperature (∼30 °C).

Band-gap photoreflectance spectra of SbSI near the phase-transition temperature

1978 ◽  
Vol 21 (1) ◽  
pp. 565-567 ◽  
Author(s):  
Sh. M. Efendiev ◽  
M. Grandolfo ◽  
C. Ranghiasci ◽  
P. Vecchia
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Band Gap ◽  
Phase Transition Temperature

Phase transition, optical and dielectric properties regulated by anion-substitution in a homologous series of 2D hybrid organic–inorganic perovskites

2019 ◽  
Vol 7 (38) ◽  
pp. 11964-11971 ◽  
Author(s):  
Wen-Juan Wei ◽  
Chao Li ◽  
Lin-Sui Li ◽  
Yun-Zhi Tang ◽  
Xing-Xing Jiang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Dielectric Properties ◽  
Band Gap ◽  
Phase Transition Temperature ◽  
Homologous Series ◽  
Halogen Atoms ◽  
Anion Substitution

Three homologous 2D organic–inorganic perovskites exhibit regulative magnitudes of phase transition temperature up to 185 K and band gap up to 1.79 eV as halogen atoms vary from Cl, Br to I.

The structure of membranes and membrane proteins embedded in amorphous ice

1992 ◽  
Vol 50 (1) ◽  
pp. 432-433
Author(s):  
Uwe Lücken ◽  
Joachim Jäger
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Membrane Proteins ◽  
Phase Transition Temperature ◽  
Lipid Vesicles ◽  
Freezing Stress ◽  
Amorphous Ice ◽  
Different Temperatures ◽  
Band Pass ◽  
Lipid Polymorphism

TEM imaging of frozen-hydrated lipid vesicles has been done by several groups Thermotrophic and lyotrophic polymorphism has been reported. By using image processing, computer simulation and tilt experiments, we tried to learn about the influence of freezing-stress and defocus artifacts on the lipid polymorphism and fine structure of the bilayer profile. We show integrated membrane proteins do modulate the bilayer structure and the morphology of the vesicles.Phase transitions of DMPC vesicles were visualized after freezing under equilibrium conditions at different temperatures in a controlled-environment vitrification system. Below the main phase transition temperature of 24°C (Fig. 1), vesicles show a facetted appearance due to the quasicrystalline areas. A gradual increase in temperature leads to melting processes with different morphology in the bilayer profile. Far above the phase transition temperature the bilayer profile is still present. In the band-pass-filtered images (Fig. 2) no significant change in the width of the bilayer profile is visible.

scholarly journals Study of physical properties of a ferrimagnetic spinel Cu1.5Mn1.5O4: spin dynamics, magnetocaloric effect and critical behavior

RSC Advances ◽  
2021 ◽  
Vol 11 (41) ◽  
pp. 25664-25676
Author(s):  
Abir Hadded ◽  
Jalel Massoudi ◽  
Sirine Gharbi ◽  
Essebti Dhahri ◽  
A. Tozri ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Physical Properties ◽  
Magnetocaloric Effect ◽  
Phase Transition Temperature ◽  
Magnetic Phase Transition ◽  
Critical Behavior ◽  
Magnetic Phase ◽  
Spin Dynamics ◽  
Critical Behaviour

The present work reports a detailed study of the spin dynamics, magnetocaloric effect and critical behaviour near the magnetic phase transition temperature, of a ferrimagnetic spinel Cu1.5Mn1.5O4.

scholarly journals Modulating the phase transition temperature of giant magnetocaloric thin films by ion irradiation

2017 ◽  
Vol 1 (6) ◽  
Author(s):  
S. Cervera ◽  
M. Trassinelli ◽  
M. Marangolo ◽  
C. Carrétéro ◽  
V. Garcia ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
Ion Irradiation
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