A comparative study of the effects of Cu, Rh doping on the microstructure, morphological and optical properties of tin dioxide nanocrystallines

2005 ◽  
Vol 40 (23) ◽  
pp. 6301-6306 ◽  
Author(s):  
C. X. Hu ◽  
Y. S. Wu ◽  
H. Y. Wei ◽  
Y. C. Shi ◽  
L. L. Wu
Keyword(s):  
Optical Properties ◽  
Comparative Study ◽  
Tin Dioxide

scholarly journals From Isolated Porphyrin Ligands to Periodic Al-PMOF: A Comparative Study of the Optical Properties Using DFT/TDDFT

2020 ◽  
Vol 124 (39) ◽  
pp. 21751-21760
Author(s):  
Andres Ortega-Guerrero ◽  
Maria Fumanal ◽  
Gloria Capano ◽  
Berend Smit
Keyword(s):  
Optical Properties ◽  
Comparative Study

Extraordinary Stability of Structural and Electronic Properties of Tin Oxide Nanoparticles Formed by Soft Chemistry

2010 ◽  
Vol 75 ◽  
pp. 36-42 ◽  
Author(s):  
Marina Rumyantseva ◽  
Irina Zhurbina ◽  
Elena Varechkina ◽  
Siranuysh Badalyan ◽  
Alexander Gaskov ◽  
...  
Keyword(s):  
Optical Properties ◽  
Photoelectron Spectroscopy ◽  
Tin Dioxide ◽  
Hydrogen Reduction ◽  
Nitrogen Adsorption ◽  
Ammonia Solution ◽  
Adsorption Method ◽  
X Ray ◽  
Wet Chemical Synthesis ◽  
Tin Chloride

Powders of tin dioxide (SnO2) have been prepared by two different modifications of wet chemical synthesis, i.e. (i) by conventional hydrolysis of tin chloride dissolved in aqueous ammonia solution and (ii) by precipitation from tin chloride dissolved in aqueous hydrazine monohydrate (N2H4*H2O) solution. The prepared gels were dried and then annealed at different temperatures varied from 300 to 700 oC in order to form nanocrystals. Structure and optical properties of the samples were investigated by using X-ray diffraction, transmission electron microscopy, thermoprogrammable hydrogen reduction, low temperature nitrogen adsorption method, photoluminescence, infra-red absorption, Raman spectroscopy, and X-ray photoelectron spectroscopy. The samples prepared by hydrazine-based method are characterized by surface area about 127-188 m2/g with high sintering resistance. The optical spectroscopy data revealed pure crystallinity and high defect concentration for the samples prepared by hydrazine-based method. The experimental results are discussed in view of different states of chemisorbed oxygen on SnO2 nanocrystal surfaces, which determine electronic and optical properties of the prepared samples.

Comparative study on the optical properties and stability of linear and branched polysilanes

2007 ◽  
Vol 126 (2) ◽  
pp. 827-832 ◽  
Author(s):  
Nianfang Ma ◽  
Ying Yu ◽  
Zhengguang Sun ◽  
Shiqiang Huang
Keyword(s):  
Optical Properties ◽  
Comparative Study
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