Stability of High Band Gap P3HT: PCBM Organic Solar Cells Using TiOx Interfacial Layer

Authors

Kurniawan Foe
Gon Namkoong, Old Dominion University
Matthew Samson
Enas M. Younes
Ilho Nam
Tarek M. Abdel-Fattah

Document Type

Article

Publication Date

2014

DOI

10.1155/2014/784724

Publication Title

International Journal of Photoenergy

Volume

2014

Pages

1-6

Abstract

We fabricated a poly [3-hexylthiophene] (P3HT) and [6,6] -phenyl-C61-butyric acid methyl ester (PC₆₁BM with the TiO_x layer. We found that a solution based TiO_x coated at a spin speed of 3000 rpm improved the photon absorption of the active layer. An optimized TiO_x 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 (J_SC) 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 (V_OC) remained relatively stable. We found that a solution based TiO_x 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 TiO_x interfacial layer. International Journal of Photoenergy, 2014, 1-6. doi: 10.1155/2014/784724

Repository Citation

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.
https://digitalcommons.odu.edu/ece_fac_pubs/73

ORCID

0000-0002-9795-8981 (Namkoong)