Preparation and characterization of ruthenium based organic composites for optoelectronic device application

Abstract Ruthenium based solid state organic LED was fabricated by the dispersion of aluminum oxide nanocomposite using solution cast technique. Different analytical techniques such as XRD, FTIR, DSC, SEM, Photoluminescence, Electroluminescence and I–V characteristics were carried out on the prepared samples. XRD showed polycrystalline nature of the prepared films. DSC revealed that the microporous organic membrane was thermally stable up to 363 °C. SEM showed the degree of roughness of OLED. Photoluminescence studies were carried out on the prepared samples in the wavelength ranging from 300 to 900 nm. It is evident from the results that the intensity of the peak was increased with the dispersion of Al 2 O 3 nanopaticles in the Ru complex. The I–V characteristics of Al 2 O 3 doped OLED of (bpy) 2 Ru[bpy(Al) 2 O 3 ](BF 4 ) 2 have showed higher efficiency which is suitable for display device application. Thus it was found out that the ruthenium based composites could be promising candidates for organic light emitting device applications.