Submicron sensors of local electric field with single-electron resolution at room temperature

被引：72

作者：

Barbolina, II ^{[1
]}

Novoselov, KS

Morozov, SV

Dubonos, SV

Missous, M

Volkov, AO

Christian, DA

Grigorieva, IV

Geim, AK

机构：

[1] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England

[2] Russian Acad Sci, Inst Microelect Technol, Chernogolovka 142432, Russia

[3] Univ Manchester, Dept Elect Engn & Elect, Manchester M13 9PL, Lancs, England

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.2159564

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe probes of a local electric field, which are capable of detecting an electric charge as small as the charge of one electron e, operational under ambient conditions and having a spatial resolution down to 100 nm. 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. (c) 2006 American Institute of Physics.

引用

页数：3

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