Bistable Electrical Switching Using a Crown Ether-Based Monolayer Electrolyte on WSe₂ Field-Effect Transistors with Various Salts.

ABSTRACT: Bistable electrical switching using a crown-ether-based electrolyte on WSe₂ field-effect transistors (FETs) is measured for four salts: LiClO₄, NaClO₄, Ca(ClO₄)₂, and LiCl. The solid-state monolayer electrolyte comprises cobalt crown ether phthalocyanine in which cations are solvated by 15-crown-5 ethers. The switching mechanism is the toggling of cations through the crown ether cavity in response to an applied field, creating low and high resistance states in the WSe₂ channel. This work shows that bistability is not unique to Li⁺ and extends to other perchlorate-based salts with Na⁺ and Ca²⁺ cations. LiClO₄ induces the largest sheet density (2 × 10¹² cm^-2) fo

SUBMITTER: Wang H 

PROVIDER: S-EPMC11877525 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature