Electromechanical sensing of substrate charge hidden under atomic 2D crystals.
basic_science · Level V
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- Record sourced from PubMed, PMID 24857624.
- Also identified by DOI 10.1021/nl500922h.
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Abstract
The functionality of graphene and other two-dimensional materials in electronic devices is highly influenced by the film-substrate charge transfer affecting local carrier density. We demonstrate that charges buried under the few layer graphene on/in the insulating substrate can be detected using electromechanical actuation of the conductive atomically thin layers, allowing measurements of areal density of film-substrate transferred charges under few layer graphene and MoS2 suspended films.