Preparation of highly (001)-oriented photoactive tungsten diselenide (WSe2 ) films by an amorphous solid-liquid-crystalline solid (aSLcS) rapid-crystallization process

2014 ◽  
Vol 211 (9) ◽  
pp. 2013-2019 ◽  
Author(s):  
Farabi Bozheyev ◽  
Dennis Friedrich ◽  
Man Nie ◽  
Mythili Rengachari ◽  
Klaus Ellmer
Keyword(s):  
Liquid Crystalline ◽  
Crystallization Process ◽  
Amorphous Solid ◽  
Crystalline Solid ◽  
Tungsten Diselenide ◽  
Rapid Crystallization ◽  
Solid Liquid

Rapid Crystallization Process of Amorphous Silicon Nitride

2011 ◽  
Vol 94 (12) ◽  
pp. 4169-4173 ◽  
Author(s):  
Yanhui Li ◽  
Li Wang ◽  
Shaowu Yin ◽  
Fuming Yang ◽  
Ping Wu
Keyword(s):  
Silicon Nitride ◽  
Amorphous Silicon ◽  
Crystallization Process ◽  
Rapid Crystallization ◽  
Amorphous Silicon Nitride

Study of Casting Self-Colored Liquid Crystalline Solid Films of Hydroxypropyl Cellulose

2013 ◽  
Vol 341-342 ◽  
pp. 217-220
Author(s):  
Qin Xing Zhang ◽  
Li Qian ◽  
Li Xia Wang ◽  
S. Stuto ◽  
Chang Yu Shen
Keyword(s):  
Visible Light ◽  
Liquid Crystalline ◽  
Solution Concentration ◽  
Hydroxypropyl Cellulose ◽  
Crystalline Solid ◽  
Selective Reflection ◽  
Solid Films ◽  
Colored Coating ◽  
Cooling Velocity ◽  
Cholesteric Liquid Crystalline

Solutions of lyotropic cholesteric liquid crystalline hydroxypropyl cellulose (HPC) in water would be self-colored due to the selective reflection of visible light, depending on the solution concentration. Colored coating of the liquid crystalline aqueous HPC solutions was attempted to apply. HPC solid films were found which could cast from the liquid crystalline solutions at different conditions such as solution concentration and different drying temperature. Experiments show that both solution concentration and cooling velocity play an important effect in controlling the color of HPC films.

scholarly journals Engineering Mesophase Stability and Structure via Incorporation of Cyclic Terminal Groups

2021 ◽  
Author(s):  
Richard Mandle ◽  
Laurence Abbott ◽  
Luma Fritsch ◽  
Rachel Parker ◽  
Sam Hart ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Liquid Crystalline ◽  
Orientational Order ◽  
Crystalline Solid ◽  
Layer Spacing ◽  
X Ray ◽  
Mesophase Formation ◽  
Dynamics Simulations ◽  
Liquid Crystalline Materials

We report on the characterisation of a number of liquid-crystalline materials featuring cyclic terminal groups, which lead to significant enhancements in the temperature range of the mesomorphic state. Materials with only short terminal chains are able to support lamellar mesophase formation by appending a large terminal cyclic unit at the end of a short methylene spacer. X-ray scattering experiments reveal that the layer spacings of the lamellar smectic phase are significantly larger when a cyclic end-group is present than for equivalent linear unsubstituted materials, but there is no effect on orientational order. Fully atomistic molecular dynamics simulations faithfully reproduce experimental layer spacings and orientational order parameters, and indicate that the cyclic terminal units spontaneously segregate into diffuse sub-layers and thus cause the increased layer spacing. This shape segregation predicted by molecular dynamics simulations is observed in the crystalline solid state by X-ray diffraction.

Resolving amorphous solid-liquid interfaces by atomic force microscopy

2016 ◽  
Vol 108 (20) ◽  
pp. 201602 ◽  
Author(s):  
Kristen M. Burson ◽  
Leonard Gura ◽  
Burkhard Kell ◽  
Christin Büchner ◽  
Adrian L. Lewandowski ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Amorphous Solid ◽  
Liquid Interfaces ◽  
Force Microscopy ◽  
Atomic Force ◽  
Solid Liquid

Mechanism of Ion-Induced Solid-Phase Crystallization and Amorphization

1989 ◽  
Vol 157 ◽  
Author(s):  
T.k. chaki
Keyword(s):  
Free Energy ◽  
Low Temperatures ◽  
Solid Phase ◽  
Amorphous Solid ◽  
Crystalline Solid ◽  
Enhanced Diffusion ◽  
Dose Rates ◽  
A Value ◽  
Radiation Enhanced Diffusion ◽  
High Irradiation Dose

ABSTRACTA mechanism is proposed to explain ion-induced solid-phase epitaxial growth (SPEG). It is argued that radiation-enhanced diffusion in amorphous solid is the cause of ion-induced SPEG at relatively low temperatures. The atoms in the amorphous solid near the crystalline/amorphous interface adjust their positions to lattice sites due to a free energy decrease associated with the transformation from amorphous to crystalline solid. An expression for the velocity of ion-induced SPEG is derived. At low temperatures and high irradiation dose rates, a large number of atoms in the lattice gets displaced and the free energy of the crystalline solid can increase to such a value that the crystalline/amorphous interface may remain stationary. It is shown that the dose rate at which the interface remains stationary increases with the temperature, following an Arrhenius dependence.

Rapid Crystallization Process Development Strategy from Lab to Industrial Scale with PAT Tools in Skid Configuration

2012 ◽  
Vol 16 (5) ◽  
pp. 769-780 ◽  
Author(s):  
Somnath S. Kadam ◽  
Jochem A. W. Vissers ◽  
Marco Forgione ◽  
Rob M. Geertman ◽  
Peter J. Daudey ◽  
...  
Keyword(s):  
Development Strategy ◽  
Crystallization Process ◽  
Process Development ◽  
Industrial Scale ◽  
Rapid Crystallization
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