Preparation of Quantum-Size Semiconductor-Doped Ormosils and their Optical Properties

1992 ◽  
Vol 272 ◽  
Author(s):  
Chia-Yen Li ◽  
Matthew Wilson ◽  
Nancy Haegel ◽  
John. D. Mackenzie ◽  
Edward T. Knobbe ◽  
...  
Keyword(s):  
Optical Properties ◽  
Glass Matrix ◽  
Sol Gel ◽  
Inorganic Glass ◽  
Preparation Methods ◽  
Gel Method ◽  
Sol Gel Method ◽  
Quantum Size ◽  
Organically Modified ◽  
Matrix Preparation

ABSTRACTAn Organically-modified silicate (Ormosil) which contains 28 wt% polydimethylsiloxane and 72 wt% silica has been used as a matrix to fabricate CdS-doped glassy nanocomposites by using the sol-gel method. Samples were prepared both in bulk and film forms. High semiconductor concentrations, up to 20 wt% CdS could be obtained and the semiconductor microcrystallites were formed at temperatures much lower than that of the purely inorganic glass matrix. Preparation methods of these CdS-doped Ormosils are described. Optical behaviors of these nanocomposites under normal and intense photon influx were studied.

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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