Electrochemical Active Ions Sensitive and Thermal Responses of Triboelectric Generators

Abstract

This work shows paper-based triboelectric generator development (TEG) with multifunctional capabilities. Monitoring techniques unveil consistent responses. Conventional TEG generates an open-circuit voltage ( ${V} _{\mathrm {oc}}$ ) of ~10 V and a short-circuit current ( ${I} _{\mathrm {sc}}$ ) of $\sim 64.14~\mu $ A. Electrochemical D-TEG achieves notable charge transfer and energy density ( ${U} _{\mathrm {e}}$ ) of about $3.88~\mu $ J cm−2 at 0.1 M KCl. The ionic solid interface reduces internal resistance ( ${R} _{\mathrm {in}}$ ), contributes consistent ionic conductivities ( $\sigma _{\mathrm {ac}}$ ), and maximum $\sigma _{\mathrm {ac}}$ is observed at 0.1 M KCl. Thermal agitated T-TEG shows improved performance with maximum ${V} _{\mathrm {oc}}$ of ~1.23 V and ${I} _{\mathrm {sc}}$ of $\sim 129~\mu $ A at $40~^{\circ }$ C. Thermally directed Ag ink inscribed interdigitate structured (IDs) T-TEG exhibit improved ${I} _{\mathrm {sc}}$ at temperature cycles. This study includes a detailed analysis of electron transfer mechanisms via energy band models in different environments, highlighting the solid ionic coupling effect on energy states and contact impedance. TEG can show potential in clinical diagnostic sensors, specifically ion recognition offering affordability and scalability.