scholarly journals Study of optical and electrochemical properties of hybrid compouds (IOH) with Jeffamine (400) e Jeffamine (600) obtained by sol-gel method doped carbon nanotubes (CNT) and chromenes

2015 ◽  
Vol 6 (2) ◽  
pp. 23
Author(s):  
Andressa Renatta Simão ◽  
Carlos Jorge Ribeiro Silva ◽  
Maria Fernanda Jesus Rego Paiva Proença
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Optical Properties ◽  
Sol Gel ◽  
Homogeneous Material ◽  
Functionalized Carbon Nanotubes ◽  
Inorganic Hybrid ◽  
Gel Method ◽  
Sol Gel Method ◽  
Property Changes

<div class="WordSection1"><div class="WordSection1"><p>Organic-inorganic gels hybrid matrix (HOI) doped with functionalized carbon nanotubes (CNT) and chromenes were prepared by sol-gel method and was characterized their optical and eletrical properties. The applicationof infrared spectroscopy (FTIR) spectroscopy and ultraviolet and visible allowed in order to evaluate their optical properties. It was used the technique of impedance spectroscopy to assess the electrical conductivity and permittivity of such materials. We conclude that the process of synthesis of HOI-doped with chromene or <span style="text-decoration: line-through;"> </span>CNT allows to produce for materials that display similar to the pure precursor compounds dispersed therein revealing the proper process suitable for the purpose to obtain homogeneous material, with or without electrical conductivity and permittivity, it enables the immobilization when property changes occur these types of molecules / structures.</p></div><p>Keywords: Sol-gel organic-inorganic hybrid, chromene, carbon nanotube.</p><p> </p></div>

Electronic structure and optical properties of spinel structure Zn1-xNixAl2O4 nanopowders synthesized by sol-gel method

2021 ◽  
pp. 138582
Author(s):  
Qiang Lu ◽  
Zhiqiang Wei ◽  
Xiaojuan Wu ◽  
Shangpan Huang ◽  
Meijie Ding ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Spinel Structure ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method

Electrical and optical properties of Sb-doped ZnO thin films synthesized by sol–gel method

2014 ◽  
Vol 23 (4) ◽  
pp. 047805 ◽  
Author(s):  
Meng-Meng Cao ◽  
Xiao-Ru Zhao ◽  
Li-Bing Duan ◽  
Jin-Ru Liu ◽  
Meng-Meng Guan ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Electrical And Optical Properties ◽  
Gel Method ◽  
Sol Gel Method ◽  
Doped Zno

Influence of Cd doping on structural and optical properties of (Cd, Al)-codoped ZnO powders synthesized via sol–gel method

2015 ◽  
Vol 645 ◽  
pp. 529-534 ◽  
Author(s):  
Libing Duan ◽  
Xiaoru Zhao ◽  
Yajun Wang ◽  
Hao Shen ◽  
Wangchang Geng ◽  
...  
Keyword(s):  
Optical Properties ◽  
Sol Gel ◽  
Structural And Optical Properties ◽  
Gel Method ◽  
Sol Gel Method ◽  
Cd Doping ◽  
Zno Powders

Effects of crystallization on the optical properties of ZnO nano-pillar thin films by sol-gel method

2011 ◽  
Vol 11 (5) ◽  
pp. 1243-1248 ◽  
Author(s):  
K.J. Chen ◽  
F.Y. Hung ◽  
S.J. Chang ◽  
S.J. Young ◽  
Z.S. Hu
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method

scholarly journals Effect of Sn-doped on microstructural and optical properties of ZnO thin films deposited by sol–gel method

2008 ◽  
Vol 517 (3) ◽  
pp. 1032-1036 ◽  
Author(s):  
Chien-Yie Tsay ◽  
Hua-Chi Cheng ◽  
Yen-Ting Tung ◽  
Wei-Hsing Tuan ◽  
Chung-Kwei Lin
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Gel Method ◽  
Sol Gel Method

The Structural, Magnetic and Optical Properties of Ni-Mg-Zn Ferrite Prepared With Different Complexing Agents via Sol-Gel Method

2021 ◽  
Author(s):  
Yanchun Zhang ◽  
Aimin Sun ◽  
Zhaxi Suonan
Keyword(s):  
Optical Properties ◽  
Electron Microscope ◽  
Sol Gel ◽  
Complexing Agents ◽  
Complexing Agent ◽  
Gel Method ◽  
X Ray ◽  
Sol Gel Method ◽  
Zn Ferrite ◽  
Vis Spectroscopy

Abstract Different complexing agents were used to prepare Ni-Mg-Zn ferrite with the composition formula Ni0.2Mg0.2Zn0.6Fe2O4 via sol-gel method, which included citric acid, oxalic acid, egg white and EDTA. The Ni0.2Mg0.2Zn0.6Fe2O4 ferrite with no complexing agent was also prepared as a comparison. The chemical phases of samples were analyzed by the X-ray diffraction (XRD), which indicated that samples had spinel phase structure. The lattice constants of samples are in the range of 8.3980 ~ 8.4089 Å. The composition and structure were further studied by fourier transform infrared spectroscopy (FTIR). There were two typical characteristic bands related to the stretching vibrations of spinel ferrite in FTIR spectra. Scanning electron microscope (SEM) micrographs and transmission electron microscope (TEM) images showed that the particles have the shape of spherical cube. Energy dispersive spectrometer (EDS) analyzed the elements and ingredients of samples, which included Ni, Mg, Zn, Fe and O. X-ray photoelectron spectroscopy (XPS) is used to examine further the elemental composition and chemical state of sample prepared with EDTA as complexing agent. The optical properties of samples were investigated by photoluminescence spectra and UV-Vis spectroscopy. Vibrating sample magnetometer (VSM) was used to characterize magnetic properties, hysteresis loops revealed the ferrimagnetism behavior of prepared samples.

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