Influence of Surface Recombination on Charge-Carrier Kinetics in Organic Bulk Heterojunction Solar Cells with Nickel Oxide Interlayers

• DOI: 10.1103/physrevapplied.4.024020
• Publication Date: 2015-08-28T13:10:01Z
• Authors: Scot Wheeler; Florent Deledalle; Nurlan Tokmoldin; Thomas Kirchartz; Jenny Nelson; James R. Durrant
• Keywords: Nickel oxide; Charge carrier

Organic solar cells have many merits, including low cost and the ability to cover large flexible substrates, yet there is much room improve them. To maximize their efficiency, this study investigates effects of surface recombination in a model system, which work function electrode contacts varied via oxygen-plasma treatment. The authors explain how changing properties contact has profound effect not only on device but also interpretation optoelectronic measurements these devices.