Au/Poly(3-methylthiophene)/10-(p-nitrobenzyl)-2(10H)-phenazinone/Al organic hetero-junction photovoltaic device

We proposed a novel concept of organic two-layer photovoltaic devices with D–σ–A molecule (Donor subunit–σ bond–Acceptor subunit)/conducting polymer heterojunction. Au/PMeT (poly(3-methylthiophene))/NBPN (10-(p-nitrobenzyl)-2(10H)-phenazinone)/Al was fabricated as a prototype of D–σ–A/polymer photovoltaic device. The power conversion efficiency of this photodiode was 5.1 × 10 −2% under white illumination (8.46 mW/cm2). This value was larger than that of PMeT Schottky photodiode. This fact suggests that the concept of D–σ–A/polymer photovoltaic device is effective.