Isotropic-nematic phase separation in suspensions of polydisperse colloidal platelets

Article Abstract:

The phase behavior of a suspension of platelike colloids, which have a broad-size distribution and exhibit isotropic-nematic phase separation over a wide range of particle concentrations, is studied. It was seen that in the coexistence region, phase separation results in a nematic upper phase, which coexists with an isotropic bottom phase.

Chemistry, Physical and theoretical, Physical chemistry, Properties

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Solid-liquid phase transition of the hard-core attractive Yukawa systems and its colloidal implications

Article Abstract:

A free volume approach for Helmholtz free energy and theoretically based fitted formulas for a radial distribution function of hard-sphere solid are combined to describe the Helmholtz free energy of a solid phase with the hard-core attractive Yukawa (HCAY) potential in the framework of first-order thermodynamics perturbation theory.

Chemistry, Analytic, Analytical chemistry, Thermodynamics

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Ultrafast Electronic Relaxation Dynamics in Layered Iodide Semiconductors: A Comparative Study of Colloidal BiI3 and PbI2 Nanoparticles

Article Abstract:

Direct measurements of ultrafast electronic relaxation dynamics in BiI3 colloidal nanoparticles using femtosecond transient absorption spectroscopy and compare with PbI2, a similar layered iodide semiconductor is reported. It is suggested that the surface play a major role in the electronic relaxation process of both BiI3 and PbI2.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Bismuth, Lead, Electric properties

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