Abstract
Hydrochloric acid doped poly ortho aminophenol (POAP) is prepared in a high acidic medium (pH similar to 0.6) using FeCl3 as an oxidizing agent. The polymerization process is conducted in the presence of polyethylene glycol (PEG200) as a soft template at 25 degrees C. The method pertains to the reduction of FeCl3 by o-amino phenol (OAP) at room temperature. The obtained POAP polymer is soluble in common organic solvents such as dimethylformamide and chloroform. The resulting POAP is investigated by various analyzing techniques including Fourier transform infrared (FT-IR), X-ray diffraction (XRD), proton nuclear magnetic resonance ((HNMR)-H-1), and scanning electron microscope (SEM). The analysis revealed that both quinoid and benzoid structures are existing in the polymer backbone. POAP thin film is fabricated and its optical properties are also investigated. Au/POAP/TiO2/p-Si/Al heterojunction solar cell is fabricated as well. The resulting average value of power conversion efficiency (PCE) of Au/POAP/TiO2/p-Si/Al heterojunction solar cell is found to be 4.28%.