Tunneling through hydrogen bonds and possibility of the molecular quantum dot transistor

Hydrogen bonds have important role in bio-nanotechnology and have particularly significant meaning in the recognition bonding of double stranded DNA. Furthermore the bonds are used in a reading process by the artificial DNA sequence reader, and they determine characteristics of the currents through the header atom probes. As two principal factors in various interaction energies in the hydrogen bond, the electrostatic interaction and the charge transfer interaction are large. The electrostatic means the bonding is given by a static electrical attractive force, and the both side atoms connected by the force configure an electrical capacitance. Therefore it can be regarded that the capacitance configures a tunnel barrier. The charge transfer interaction gives an origin of currents through the bonds. Based on the consideration about the current characteristics, the molecular quantum dot transistor including two NH₃ and two H₂O is suggested.