Structural and electrical properties of P3HT:PCBM/PEDOT:PSS thin films deposited through electrohydrodynamic atomization technique

This paper presents the deposition of solution based composite P3HT:PCBM thin film on PEDOT:PSS coated ITO substrate via electrohydrodynamic atomization (EHDA) technique. Deposition conditions such as stable cone jet formation, flow rate and applied potential have been investigated. X-ray diffraction anlaysis revealed the presence of P3HT polymer in the as deposited film. Surface morphology investigated using a field emission-scanning electron microscope confirms that a uniform deposition of thin films was achieved. The current–voltage characteristics of the as deposited films show a rectifying behavior. The capacitance–voltage study indicated capacitance of the as deposited thin films depended on the frequency .

► Electrohydrodynamic atomization of P3HT:PCBM thin film on PEDOT:PSS/ITO substrate.
► Detailed optimization process for deposition of P3HT:PCBM is presented.
► X-ray diffraction pattern confirmed the presence of thiophene ring in P3HT.
► C–V analysis confirmed the capacitance influenced by frequency.