Surface and Volume Energy Loss , Optical Conductivity of Rhodamine 6G dye (R6G)

Abstract

One of organic dye materials which have been long lasting investigated is  rhodamine 6G(R6G) dye .This dye has been attracted with considerable interests due to the reason of its promising photochemical properties. In the present study we determine the optical parameters of thin films of R6G dye using transmittance spectra in the wave length region 200-900nm. Some optical constants are calculated and tabulated, such as index refraction  ( n) , absorption coefficient ( ? ), optical energy gap (E_g) , optical conductivity( ?_opt ) ,electrical conductivity(?_e ) as well as  real and imaginary part of dielectric constant .The Wemple-DiDimenico that used to study the optical dispersion parameters . The volume energy loss (VELF) and the surface energy  loss(SELF) functions are also investigated .

Keywords :  Rhodamine 6G dye , dispersion parameters , optical conductivity, energy loss .