International Journal of Photoenergy
We fabricated a poly [3-hexylthiophene] (P3HT) and [6,6] -phenyl-C61-butyric acid methyl ester (PC61BM with the TiOx layer. We found that a solution based TiOx coated at a spin speed of 3000 rpm improved the photon absorption of the active layer. An optimized TiOx layer was also used as the interfacial layer to investigate the stability of P3HT: PC61BM OPC. After 70 days of storage, we observed that the short-circuit current density (JSC) dropped by 16.2%, fill factor (FF) dropped by 10.6%, and power conversion efficiency (PCE) dropped approximately by 25%, while the open-circuit voltage (VOC) remained relatively stable. We found that a solution based TiOx layer synthesized using a sol-gel chemistry method was very effective in protecting the active layer from degradation.
Original Publication Citation
Foe, K., Namkoong, G., Samson, M., Younes, E. M., Nam, I., & Abdel-Fattah, T. M. (2014). Stability of high band gap P3HT: PCBM organic solar cells using TiOx interfacial layer. International Journal of Photoenergy, 2014, 1-6. doi: 10.1155/2014/784724
Foe, Kurniawan; Namkoong, Gon; Samson, Matthew; Younes, Enas M.; Nam, Ilho; and Abdel-Fattah, Tarek M., "Stability of High Band Gap P3HT: PCBM Organic Solar Cells Using TiOx Interfacial Layer" (2014). Electrical & Computer Engineering Faculty Publications. 73.