Submicron sensors of local electric field with single-electron resolution at room temperature
- 2 January 2006
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 88 (1) , 013901
- https://doi.org/10.1063/1.2159564
Abstract
We describe probes of a local electric field, which are capable of detecting an electric charge as small as the charge of one electron , operational under ambient conditions and having a spatial resolution down to . The submicron-sized probes were made from a high-density high-mobility two-dimensional electron gas, which is sensitive to the presence of electric charges near its surface. We demonstrate the possibility of using such microprobes for life-science applications by measuring an electric response of individual yeast cells to abrupt changes in their environment.
Keywords
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