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Nanofluidic Bipolar Transistors
Author(s) -
Kalman E. B.,
Vlassiouk I.,
Siwy Z. S.
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200701867
Subject(s) - materials science , nanopore , transistor , electrolyte , bipolar junction transistor , nanotechnology , ionic bonding , surface charge , optoelectronics , charge (physics) , ion , voltage , electrode , electrical engineering , chemistry , physics , quantum mechanics , engineering
The preparation of a bipolar ionic transistor based on a single hourglass‐shaped nanopore with tailored surface charge is shown. The narrow opening of the pore was between 2 and 6 nm. The gate in our device and the device on/off behavior are controlled chemically by changing the surface charge on the pore walls. This was accomplished by changing pH and concentrations of the electrolyte.