Ontology highlight
ABSTRACT:
SUBMITTER: Yu R
PROVIDER: S-EPMC7455491 | biostudies-literature | 2020 Jul
REPOSITORIES: biostudies-literature
Yu Renwen R García de Abajo F Javier FJ
Science advances 20200708 28
We explore a disruptive approach to nanoscale sensing by performing electron energy loss spectroscopy through the use of low-energy ballistic electrons that propagate on a two-dimensional semiconductor. In analogy to free-space electron microscopy, we show that the presence of analyte molecules in the vicinity of the semiconductor produces substantial energy losses in the electrons, which can be resolved by energy-selective electron injection and detection through actively controlled potential g ...[more]