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Studies of Potassium Dihydrogen Phosphate (KDP) Crystals Doped with Potassium Dichromate (PD) using ICP and UV Spectrophotometer

Published online by Cambridge University Press:  01 February 2011

Selemani Seif  and
Ravindra Behari Lal
Selemani Seif
Affiliation:
seifselemani@aol.com, Alabama A & M University, Physics Department, P. O. Box 1268, Normal, AL, 35762, United States, 256 880 8533, 256 372 5622
Ravindra Behari Lal
Affiliation:
rlal@aamu.edu, Alabama A & M University, Physics Department, P. O. Box 1268, Normal, AL, 35762, USA, United States
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Abstract

This paper reports on preparation and characterization of Potassium Dihydrogen Phosphate (KDP) crystals doped with Potassium Dichromate (PD). The crystals were grown at room temperature by solution evaporation technique. The grown crystals were polished, sliced, and analyzed using UV-Spectrophotometer, which showed high concentration of PD impurities in KDP crystals at 200-280 nanometer. These concentrations were then verified using ICP measurements to determine specific amount in ppm of chromium ions in KDP crystals. In additional to that, the UV-transmittance data of these crystals were then converted to absorbance per thickness, and used to calculate absorption coefficients, extinction coefficients, and refractive index as a function of wavelength. The results showed that the presence of PD impurities in the crystal matrix of KDP has played a key reformative role in the UV sensing of Potassium Diphosphate crystals.

Keywords

crystalcrystal growthabsorption
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1015: Symposium BB – Hybrid Functional Materials for Optical Applications , 2007 , 1015-BB06-07
Copyright
Copyright © Materials Research Society 2007

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