Ion‐Current Diode with Aqueous Gel/SiO₂ Nanofilm Interfaces

An electrochemical diode made of conducting Si, a SiO2 nanolayer, and aqueous gel interfaces (SNAGI diode), is reported. The use of a hydrated SiO2 nanolayer in the structure allows for a rectification ratio higher than 3 × 104. The SNAGI diodes are also biocompatible, scalable, and easy to fabricate. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.