All-Elastomeric Organic Schottky Diodes with Tunable Interfaces for Wearable Bioelectronics
발표자
이희정 (부산대학교)
연구책임자
심현석 (부산대학교)
초록
내용
Achieving precise energy level alignment at the electrode–semiconductor interface is crucial for high-performance organic Schottky diodes, especially in soft, stretchable electronics. Here, we present a fully elastomeric Schottky diode where all components—cathode, anode, and semiconductor—are intrinsically stretchable. Electrical performance is optimized by tuning the work function of PEDOT:PSS electrodes via a simple PSS doping process, enabling controlled ohmic contacts with the semiconductor PTB7-th. The device exhibits excellent mechanical durability along with a high rectification ratio and low leakage current. Key parameters, such as ideality factor and schottky barrier height, match theoretical values, validating our interface design. The diode is also integrated into a EMG-sensing circuit to demonstrate practical utility in energy-efficient soft electronics. These results highlight the potential of our elastomeric diode as a mechanically robust and electrically optimized platform for next-generation wearable and bio-integrated systems.