Organic Field Effect Transistor Based Crosslinked Deoxyribonucleic Acid Gate Dielectric

Deoxyribonucleic Acid (DNA) derived form marine waste products and modified with surfactant demonstrates excellent passive and active optical properties. In this study, we have fabricated organic field-effect transistors with DNA gate. In organic field effect transistors (OFETs) the gate dielectric plays a crucial role - these highly insulating thin film polymer layers are key-components in state of the art organic transistor devices. When replacing the polymer layer by introducing solution-processed thin film modified bio polymer (DNA) as gate insulator, transistor-characteristics are changed towards remanence-like hysteresis behaviours. The hysteresis-loops probed in bio-organic field effect transistors (BiOFETs) derived from DNA and fullerene derivatives form bistable states which can be used for memory devices at low operating voltage regime compared to similar organic thin film transistors using polymers as gate insulator