Identification and classification of Eremogone species using DNA based Schottky diodes

The revelation of DNA's remarkable conducting characteristics provided a significant boost for the development of DNA-based electronics. These distinguishing characteristics can be used to identify or detect DNA. In this study, it was basically aimed to investigate the possibility of using Schottky barrier diodes in which semiconductor DNA is used as the interface from three endemic Eremogone species distributed in Turkey. We collected Eremogone ali-gulii, Eremogone armeniaca, and Eremogone scariosa endemic species and extracted the DNA via the QIAGEN commercial DNA isolation kit procedure. The DNA samples were deposited by drop casting on the thin film indium tin oxide substrate. Electrical characterization of DNA interlayered heterojunctions was investigated via a solar simulator. Electronic parameters such as ideality factor, barrier height, and series resistance were calculated from I to V characteristics. Electrical properties of DNA samples were investigated and compared to Colchicum triphyllum's DNA which is completely from another genus. The results show that morphologically similar species have similar electrical properties. When compared to Colchicum triphyllum-DNA based device, genus Eremogone-DNA based devices have a lower ideality factor, barrier height, and series resistance. Via this technique, DNA samples can be identified, detected, and classified.