Translucent α- and α/β-SiAlON ceramics: study on investigation of the relationship between phase diversity and optical properties

2020 ◽  
Vol 15 (1) ◽  
pp. 14
Author(s):  
Suna Avcıoğlu ◽  
Semra Kurama
Keyword(s):  
Optical Properties ◽  
Phase Diversity ◽  
The Relationship

scholarly journals Changes in Optical Properties upon Dye–Clay Interaction: Experimental Evaluation and Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 197
Author(s):  
Giorgia Giovannini ◽  
René M. Rossi ◽  
Luciano F. Boesel
Keyword(s):  
Optical Properties ◽  
Hybrid Materials ◽  
High Performance ◽  
Fluorescent Properties ◽  
Chemical Mechanisms ◽  
Strong Electrostatic Interaction ◽  
Potential Applications ◽  
Photochemical Properties ◽  
Physical And Chemical ◽  
The Relationship

The development of hybrid materials with unique optical properties has been a challenge for the creation of high-performance composites. The improved photophysical and photochemical properties observed when fluorophores interact with clay minerals, as well as the accessibility and easy handling of such natural materials, make these nanocomposites attractive for designing novel optical hybrid materials. Here, we present a method of promoting this interaction by conjugating dyes with chitosan. The fluorescent properties of conjugated dye–montmorillonite (MMT) hybrids were similar to those of free dye–MMT hybrids. Moreover, we analyzed the relationship between the changes in optical properties of the dye interacting with clay and its structure and defined the physical and chemical mechanisms that take place upon dye–MMT interactions leading to the optical changes. Conjugation to chitosan additionally ensures stable adsorption on clay nanoplatelets due to the strong electrostatic interaction between chitosan and clay. This work thus provides a method to facilitate the design of solid-state hybrid nanomaterials relevant for potential applications in bioimaging, sensing and optical purposes.

Probing the relationship between structural and optical properties of Si-doped AlN

2010 ◽  
Vol 96 (13) ◽  
pp. 131906 ◽  
Author(s):  
B. N. Pantha ◽  
A. Sedhain ◽  
J. Li ◽  
J. Y. Lin ◽  
H. X. Jiang
Keyword(s):  
Optical Properties ◽  
Structural And Optical Properties ◽  
Si Doped ◽  
The Relationship

Investigating the relationship between aerosol and cloud optical properties inferred from the MODIS sensor in recent decades over East China

2020 ◽  
Vol 239 ◽  
pp. 117812
Author(s):  
Jing Huang ◽  
Lingbing Bu ◽  
Kanike Raghavendra Kumar ◽  
Rehana Khan ◽  
N.S.M.P. Latha Devi
Keyword(s):  
Optical Properties ◽  
East China ◽  
The Relationship

First-principle calculations of ternary compounds: Immm-BxTi3−xN2

2019 ◽  
Vol 33 (25) ◽  
pp. 1950295
Author(s):  
Xin-Kuan Wang ◽  
Ruike Yang ◽  
Shaowei Ma ◽  
Bao Chai ◽  
Minhua Xue
Keyword(s):  
Optical Properties ◽  
Plasma Frequency ◽  
Titanium Nitrides ◽  
First Principle ◽  
Orthorhombic Structure ◽  
Cutting Resistance ◽  
Ternary Compounds ◽  
First Principle Calculations ◽  
The Relationship ◽  
Boron Nitrogen

Boron nitride (BN) and Titanium nitrides (TiNs) have been successfully researched recently. In order to analyze the relationship among the Boron, Nitrogen and Titanium, the ternary compounds with an orthorhombic structure Immm- are studied. We further researched on the mechanical, electronic and optical properties of new Immm-B[Formula: see text]Ti[Formula: see text]N2 ([Formula: see text]). The structures of BTi2N2 and B2TiN2 are mechanically stable at 0, 50 and 100 GPa. The BTi2N2 has the higher cutting resistance and better ductility than the B2TiN2. The higher Young’s modulus of B2TiN2 indicates the B2TiN2 is stiffer than BTi2N2. The BTi2N2 is harder to compress in the [Formula: see text] direction and the B2TiN2 is harder in [Formula: see text] direction. Immm-BTi2N2 and B2TiN2 have good metallicity at 0 and 100 GPa. Immm-BTi2N2 has the higher dielectric function than B2TiN2 and the plasma frequency of B2TiN2 is bigger than that of BTi2N2. We hope our work will provide some help to the experimental work about the technology of the material.

Structure-Optical Property Relationships of Porphyrins

1997 ◽  
Vol 479 ◽  
Author(s):  
Weijie Su ◽  
Thomas M. Cooper ◽  
Nansheng Tang ◽  
Doug Krein ◽  
Hao Jiang ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Optical Properties ◽  
Optical Property ◽  
Fluorescence Lifetimes ◽  
Structural Variations ◽  
Reduction Behavior ◽  
Oxidation Reduction ◽  
Optical Applications ◽  
The Relationship

AbstractPorphyrins are attractive compounds for optical applications. We have been investigating the relationship between molecular structure and optical properties of a number of porphyrin compounds. Structural variations explored include insertion of metal ions, extension of conjugation, halogenation and formation of multimers. The characterization of these chromophores includes measurement of UV/Vis, fluorescence and fluorescence lifetimes. Furthermore, we have investigated their nonlinear absorption, refraction, excitation dynamics as well as oxidation/reduction behavior. Based on our observations, clear recommendations can be made for the design of optical limiting chromophores.

On the relationship between radio emission and optical properties in early-type galaxies

1989 ◽  
Vol 97 ◽  
pp. 1319 ◽  
Author(s):  
Massimo Calvani ◽  
Giovanni Fasano ◽  
Alberto Franceschini
Keyword(s):  
Optical Properties ◽  
Radio Emission ◽  
Early Type ◽  
The Relationship
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