Structural, optical, mechanical and dielectric studies of pure and doped L-Prolinium Trichloroacetate single crystals

Author(s):  
N. Renuka ◽  
R. Ramesh Babu ◽  
N. Vijayan ◽  
Geetha Vasanthakumar ◽  
Anuj Krishna ◽  
...  
1970 ◽  
Vol 33 (1) ◽  
pp. 47-54 ◽  
Author(s):  
S Ferdous ◽  
J Podder

Highly transparent and well faceted large size epsomite single crystals have been grown in pure form and doped with KCl from aqueous solutions by slow cooling and isothermal evaporation method. The optical quality of the epsomite improves on doping by KCl. Mass growth rates were found to increase with doping of lower concentrations of KCl and then decreases with the higher concentration of KCl. KCl doped epsomite crystal reveals that structures are slightly distorted due to adsorption of Cl- ion into the crystal lattice. DC conductivity along the growth axis for all of the grown crystals increases with temperature in the range of 25 to 70ºC and also increases with the KCl concentration. Dielectric constant is found to be almost independent of frequency up to range of 106Hz. The dielectric studies show the suitability of these grown crystals for optoelectronic applications. DOI: 10.3329/jbas.v33i1.2949 Journal of Bangladesh Academy of Sciences, Vol. 33, No. 1, 47-54, 2009


2005 ◽  
Vol 38 (16) ◽  
pp. 2910-2918 ◽  
Author(s):  
A Slodczyk ◽  
A Kania ◽  
Ph Daniel ◽  
A Ratuszna

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
N. Kanagathara ◽  
G. Anbalagan

Optically good quality single crystals of pure and L-lysine monohydrochloride-doped KDP crystals have been grown by a slow evaporation method. The grown crystals have been subjected to optical and dielectric studies. The UV-Vis spectrum shows the transmitting ability of the crystals in the entire visible region and transmittance percentage is increased for the doped KDP crystals. From the dielectric study, it is found that the dielectric constant and the dielectric loss of L-lysine-doped KDP crystals were lower than the pure KDP crystals. Hence L-lysine-doped KDP crystals are found to be more beneficial from an application point of view as compared to pure KDP crystals.


1987 ◽  
Vol 22 (5) ◽  
pp. 731-736 ◽  
Author(s):  
C. C. Desai ◽  
M. S. V. Ramana

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
K. Rajesh ◽  
B. Milton Boaz ◽  
P. Praveen Kumar

Single crystals of pure and Lanthanum doped L-Alanine Tartrate were grown by slow evaporation method. The cell parameters were determined using single crystal X-ray diffraction method. To improve the physical properties of the LAT crystal, Lanthanum dopant was added by 2 mol%. ICP studies confirm the presence of Lanthanum in the grown LAT crystal. Transparency range of the crystal was determined using UV-VIS-NIR spectrophotometer. The functional groups of pure and doped LAT crystals were analyzed by FT-IR spectroscopy. Using Vickers microhardness tester, mechanical strength of the material was found. Dielectric studies of pure and doped LAT single crystals were carried out. The doped LAT crystal is found to have efficiency higher than that of pure LAT crystal.


1994 ◽  
Vol 158 (1) ◽  
pp. 399-404 ◽  
Author(s):  
J. Wolak ◽  
B. Hilczer ◽  
C. Caranoni ◽  
P. Lampin ◽  
C. Boulesteix

2011 ◽  
Vol 406 (3) ◽  
pp. 426-429 ◽  
Author(s):  
Varghese Mathew ◽  
K.C. Mathai ◽  
C.K. Mahadeven ◽  
K.E. Abraham

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