Ara
Toplam kayıt 160, listelenen: 71-80
Peculiarities of thermo-morphologic and thermotropic transformations of heterophase regions: nematic <-> isotropic phase transition in 4-n-Alkyl-4 '-cyanobiphenyl mesogens
(Natl Inst Optoelectronics, 2019)
Important peculiarity of phase transitions in liquid crystalline materials is availability of the heterophase regions, in which low temperature and high temperature phases simultaneously take place. In this work, peculiarities ...
Regimes of current transport mechanisms in CdS/CdTe solar cells
(Iop Publishing Ltd, 2019)
Forward bias recombination (current transport) mechanisms have been evaluated for thin film solar cells and correlated to the in-gap trap levels present. Here CdTe/CdS devices were chosen as an archetypal example of a ...
Lyotropic liquid crystalline hexagonal mesophase. Thermo-morphologic and magneto-morphologic transformations, electrical conductivity and optical refractive properties: Effect of optically active compounds
(Elsevier, 2020)
Mesophase chirality in lyotropic liquid crystalline hexagonal E mesophase, which is formed by the anisometric micelles with quasi-infinite length, was studied. Effect of the optically active dopants {tartaric acid (TA) and ...
Peculiarities of Defective Formations in Heterophase Regions of the Thermotropic Phase Transitions in Liquid Crystals
(Wiley-V C H Verlag Gmbh, 2019)
A unique feature of phase transitions in liquid crystalline materials is the availability of heterophase regions. In such regions, the simultaneous coexistence of high temperature and low temperature phases takes place. ...
High-diffraction-efficiency Fresnel lens based on annealed blue-phase liquid crystal-polymer composite
(Taylor & Francis Ltd, 2019)
We demonstrated a relatively simple and effective method to fabricate a periodically isolated polymer wall of blue-phase liquid crystal Fresnel lens (BPLCFL) by employing a single-masking process of the ultraviolet (UV) ...
Thermotropic cholesteric liquid crystals. Thermo-morphologic, optical refracting and birefringent properties: Direct and reverse phase transitions
(Elsevier, 2020)
Temperature dependences of the average refractive index < n >, refractive indices of the ordinary ray n(o) and the extraordinary ray n(e), and the birefringence Delta n have been investigated in two cholesteric liquid ...
Investigation of datasheet provided temperature coefficients of photovoltaic modules under various sky profiles at the field by applying a new validation procedure
(Pergamon-Elsevier Science Ltd, 2020)
In this study, datasheet provided temperature coefficients of commercially available photovoltaic modules were investigated by taking into account the actual performance parameters (output peak power, short-circuit current ...
Peculiarities of inversion walls and singular points in oriented textures of nematic mesophase
(Wiley-V C H Verlag Gmbh, 2009)
In this work the nature and peculiarities of the inversion walls and singular points, which can spontaneously arise or can be stimulated in the homeotropic and planar oriented textures of the thermotropic nematogens, have ...
The effects of preparation temperature on the main electrical parameters of Al/TiO2/p-Si (MIS) structures by using sol-gel method
(Springer, 2009)
In this study, the forward bias current-voltage (I-V) and capacitance-voltage (C-V) characteristics of the Al/TiO2/p-Si (MIS) structures derived using the sol-gel method have been investigated and compared at various ...
1,3-Dimethyl-5-(3,4,5-tris(alkoxy)benzoyl) barbituric acid derivatives and their liquid crystalline difluoroboron complexes: Synthesis, characterization and comparative investigations of mesomorphic, thermotropic and thermo-morphologic properties
(Elsevier, 2014)
A series of 1,3-dimethyl-5-(3,4,5-tris(alkoxy)benzoyl) barbituric acid derivatives 1a-4a with various chain length were synthesized by our group for the first time through the addition of 1,3-dimethyl barbituric acid to ...