Theoretical efficiency in an organic photovoltaic energy conversion system

Abstract
The maximum theoretical solar conversion efficiency is calculated for an organic photovoltaic energy conversion system based on PVK‐TNF. Charge separation is assumed to take place at a Schottky barrier. At high fields (108 V m−1) the theoretical energy conversion efficiency approaches a maximum value of 2% with a 2‐eV barrier. Lower efficiencies are found for barriers greater than or lower than 2.0 eV and at lower fields.