Critical breakdown path under low-pressure and slightly uneven electric field gap

Measurement of Air Breakdown Voltage and Electric Field Using Standad Sphere Gap Method

Electric field breakdown in single molecule junctions.

Here we study the stability and rupture of molecular junctions under high voltage bias at the single molecule/single bond level using the scanning tunneling microscope-based break-junction technique. We synthesize carbon-, silicon-, and germanium-based molecular wires terminated by aurophilic linker groups and study how the molecular backbone and linker group affect the probability of voltage-i...

Modulating Band Gap and HOCO/LUCO Energy of Boron-Nitride Nanotubes under a Uniform External Electric Field

In this study, spectroscopic properties of the single-walled boron-nitride nanotube (SWBNNT) –a semiconductor channel in molecular diodes and molecular transistors–have been investigated under field-free and various applied electric fields by first principle methods.Our analysis shows that increasing the electric field in boron-nitride nanotube (BNNT) decreases the Highest Occupied Crystal Orbi...

Effect of Cell Size and Shape on Electric Field Threshold and Critical Transmembrane Voltage for Electroporation

Introduction:  Electroporation  is  a  technique  for  increasing  the  permeability  of  the  cell  membrane  to  otherwise  non-permeate  molecules  due  to  an  external  electric  field.  This  permeability  enhancement  is  detectable if the induced transmembrane voltage becomes greater than a critical value which depends on the  pulse  strength  threshold.  In  this  study,  the  variabil...

High Pressure Spark Gap Recovery after Overvolted Breakdown

A spark gap at pressures from 100 kPa to 7 MPa with various gases is fired by overvolting the electodes. The recovery of the gap is studied using a second identical pulse to test the voltage holdoff during the recovery period. A TV camera, interferometer and a spinning mirror camera are also used to record arc locations and density profiles. The gas is stationary during the recovery. Breakdown ...