2026-10-14T02:36:51Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34030930 2026-09-30T09:03:26Z category_16 category_19 category_21 category_873 portal_63 item_type_6 month_year_09_2026

PEDOT:PSS-Based Stretchable Organic Electrochemical Diode with a High Rectification Ratio at High Frequency (1 kHz) Seunggoo Baek (25142791) Hyeongseok Choi (17291677) Taeyeong Kim (17291674) Unyong Jeong (1430443) Physiology Pharmacology Biotechnology Chemical Sciences not elsewhere classified significant leap forward rectifying behavior originates intrinsic brittleness restricts fundamental building blocks electrochemical doping state dependent hole injection practical khz operation conventional diodes suffer soft integrated circuits ethylenedioxythiophene ): poly 1 khz even high rectification ratio pss active layer rectification ratio active layer 1 khz stretchable diodes robust high high frequency rectification performance typically limited successfully demonstrated platform represents persistent trade logic operations logic gates frequency capability electromechanical durability dynamically modulates deformable electronics Stretchable diodes are fundamental building blocks for rectification and logic operations in soft integrated circuits; however, conventional diodes suffer from a persistent trade-off between rectification performance and electromechanical durability. Although electronic diodes based on rigid inorganic semiconductors deliver high rectification ratios exceeding 10³, their intrinsic brittleness restricts their application in deformable electronics. Conversely, conventional ionic diodes utilizing compliant ionic conductors can accommodate large tensile strains (>50%), but they are typically limited to low-frequency operations (<1 Hz) with modest rectification ratios (<100). Herein, we demonstrate a highly robust stretchable organic electrochemical diode based on a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) active layer. The rectifying behavior originates from bias-dependent hole injection and extraction at the junction between the PEDOT:PSS active layer and an Ag flake composite anode, which dynamically modulates the electrochemical doping state of the active layer to induce a highly asymmetric interfacial impedance response. Remarkably, the organic electrochemical diode preserves a rectification ratio of 300 at 1 kHz even under 100% tensile strain, alongside exceptional mechanical durability over 1,000 stretch–release cycles at 20% strain. Using this robust high-frequency capability, integrated OR and AND logic gates are successfully demonstrated to process 1 kHz alternating current (AC) signals. By simultaneously combining superior electromechanical stability, a high rectification ratio, and practical kHz operation, this platform represents a significant leap forward in the realization of next-generation deformable electronic systems. 2026-09-30T00:00:00Z Text Journal contribution 10.1021/acsapm.6c03109.s001 https://figshare.com/articles/journal_contribution/PEDOT_PSS-Based_Stretchable_Organic_Electrochemical_Diode_with_a_High_Rectification_Ratio_at_High_Frequency_1_kHz_/34030930 CC BY-NC 4.0