OAM-RC

Abstract

The organic dye (Rhodamine B) is doped in 4-Methoxy Benzaldeyde-N-Methyl-4-StilbazoliumTosylate (MBST) crystal. Influences of super saturation and dye concentration in the solution, on the color and crystal habit of MBST, were observed. Rhodamine B in the solution at low super saturation and high dye concentration colored the pyramidal section (101) of the crystals. The highly super saturated solutions produce entirely colored crystals. The concentration of dopants in the mother solution was varied from 0.1 mole % to 10mole %. The studies on pure and doped MBST crystals clearly indicate the effect of dopants on the crystal structure, in the absorption of IR frequencies and the non-linear optical property. The frequencies with their relative intensities are obtained in FT-IR of pure and doped MBST. The very weak bands for dopants indicate its presence in low concentration. In view of the ever-growing importance of ion beams in optical material processing, this letter reports room temperature MeV Li + ion irradiation induced depletion of hydrogen from single crystalline MBST which has wide applications as a non linear optical material in optoelectronics technology. Irradiations have been performed using 25 MeV Li+ ions up to a maximum dose of 2.4 X1015 ions/cm2 . Simultaneously, detecting the elastically recoiled Li atoms has done hydrogen profiling. A possible explanation of these phenomena is suggested.

Keywords

Growth from solutions, Single crystal growth, Nonlinear Optical materials, dye doped MBST.

Citation

J. LOGESWARI, Effect of irradiation on dye doped 4-Methoxy Benzaldeyde-N-Methyl-4-Stilbazolium Tosylate (MBST) crystal, Optoelectronics and Advanced Materials - Rapid Communications, 2, 6, June 2008, pp.379-382 (2008).

Submitted at: April 17, 2008

Accepted at: June 5, 2008