Volume 18 No 3 (2020)
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Structural and Optical Analysis of Rhodamine 6G Thin Films Prepared by Q-switched Nd: YAG Pulsed Laser Deposition
Eman K. Hassan
Optical properties of Rhodamine 6G(R6G) thin film were presented in this work. R6G films are deposited on substrate of glass via the approach of the Q-switching Nd: YAG pulsed laser deposition (PLD) with wavelength 1064 nm, pulse duration 10 ns under vacuum condition of 10-3 torr. The growth films are presented and the measures have shown that films have high coefficient of absorption with increase films thickness. The direct band gap energy has been specified and found about 3.2eV for the B-band and 1.9eV for the Q-band with red shift when the thickness of film increased from 180nm to 250 nm. In addition, the Refractive index and dielectric constant highly depends on film thickness. XRD measurements show polycrystalline structure for powder, while have amorphous structure when converting to thin films.
Rhodamine 6G (R6G), Optical Properties, Structural Properties, Dielectric Constant, Energy Gap.
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