The effects of PCBM, ICBA And Annealing on the performance of P3HT deposited on organic solar cells

Open Access
Author:
Adepoju, Adebola
Area of Honors:
Chemical Engineering
Degree:
Bachelor of Science
Document Type:
Thesis
Thesis Supervisors:
  • Enrique Daniel Gomez, Thesis Supervisor
  • Darrell Velegol, Honors Advisor
Keywords:
  • OPV
  • PCBM
  • ICBA
  • Annealing
Abstract:
Donor:acceptor polymer mixtures are studied for their application in efforts to increase the efficiency of organic photovoltaic devices (OPV). Research shows that changes to the composition and condition of blended polymer active layer can result in varying properties of the derived polymer films. A study of composite poly(3-hexylthiophene-2,5-diyl) (P3HT):1-[3-(Methoxycarbonyl)propyl]-1-phenyl-[6.6]C61 (PCBM) and P3HT: indene-C60 bisadduct (ICBA) fabricated with varying amount of P3HT, PCBM and ICBA is used to investigate the changes due to the blended polymer in comparison to that of the pristine P3HT. The effect of heat on the polymer blends were also investigated for the pristine P3HT, the P3HT:PCBM blends and the P3HT:ICBA blends. PCBM and ICBA exhibit the quenching effect when mixed with P3HT and it was found that ICBA quenches P3HT more than PCBM as the temperature at which the films are annealed increases. It was also found that the nanoscale morphology of the ICBA blend is less dependent on annealing temperature when compared to the nanoscale morphology of the PCBM blend.