S K Tripathi et al 2009 Smart Mater. Struct. 18 125012 doi:10.1088/0964-1726/18/12/125012
S K Tripathi, Alka Monga and G S S Saini
Show affiliationsThe present paper reports the study of Rhodamine 6G (R6G) in thin film form and its structural, optical and electrical characterization. The R6G films are found to have an amorphous structure as determined using the x-ray diffraction technique. The FTIR spectra of R6G thin film confirms that this molecule does not dissociate on being thermally evaporated and thus this technique can be used to deposit the thin films. The fluorescence and transmission spectra, of the thin film, show a redshift in peaks. Temperature dependence of dark conductivity (σd) and photoconductivity (σph) measurements, in the temperature range 303–403 K, confirms that the conduction in R6G is through an activated process having a single activation energy. The photoactivation energy (Eph) value is smaller in comparison to the activation energy in dark (Ed).
68.55.-a Thin film structure and morphology
78.66.Qn Polymers; organic compounds
78.30.Jw Organic compounds, polymers
Soft matter, liquids and polymers
Issue 12 (December 2009)
Received 27 January 2009, in final form 26 June 2009
Published 6 October 2009
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