Fabrication and characterization of flexible organic photovoltaic device based on poly (1,2,3 trihydroxy 4,5 Phenylene)

2^nd International Conference and Exhibition on Materials Science & Engineering

October 07-09, 2013 Hampton Inn Tropicana, Las Vegas, NV, USA

Adly H. El-Sayed and El-Garf S. A

Accepted Abstracts: J Material Sci

Abstract :

Anew material based on poly (hydroxyl-phenylene) has been prepared. Polymer doped with some metal chloride salts such as Fe, Co, or Cd was added to the material in order to obtain flexible films of the structure: Aℓ /Poly(1,2,3 trihydroxy-4,5 Phenylene)+ PSS doped M-chloride/ITO UV-Vis Spectra shows broadband absorption enhancement in the UV, visible and near infrared portion of solar energy. The current density-voltage (J-V) characteristics under forward bias were found to exhibit two regions. At low voltages the devices showed Schottky diode behavior. At higher regions the results showed ohmic conduction. Under reverse bias, the conduction processes were interpreted in terms of both the Pool- Frenkel and Schottky effects. The capacitance versus reverse bias voltage is linear which indicates the formation of Schottky junction, the built-in voltage and the charge concentration were also found to be influenced by the presence of the metal chloride salts. Under illumination, the J-V curves are used to estimate the solar cell parameters such as open-circuit voltage, short-circuit current, fill factor, and energy conversion efficiency.

Biography :

Adly H. El-Sayed received M.Sc. (1980) from Alexandria University Egypt and Ph.D. (1987) degree from Alexandria University/Kamerling Onnes Lab. (Leiden Univ. Holland) in the field of ESR in spin-glasses and intermetallic compounds (Semiconductors-Superconductors). He had been employed as post doctoral researcher at Genova University Italy (1990-1991). He is research Professor at faculty of science, Alexandria University from 1991 to present. He is co-author of more than 30 scientific publications in the field of superconductivity, spin-glasses, semiconductors and polymer/metal oxide nanocomposites.