Abstract
We herein report an atypical electrical behavior of WS2 nanosheets drop casted on Cu electrodes. The addition of heavy metal ions on this platform results in non-ohmic behavior, accompanied by a dramatic rise of current. Additionally, this atypical behavior is found to be reversible. The proposed platform regains its ohmic behavior upon removal of these ions from the nanosheets. It is envisioned that this unusual characteristic will pave way for more research in the field of sensing as well as in relevant fields.
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