Spectroscopy of Biological Compounds with Inelastic Electron Tunneling
- 28 June 1974
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 184 (4144) , 1369-1371
- https://doi.org/10.1126/science.184.4144.1369
Abstract
Metal-insulator-metal electron tunnel junctions can be doped with a solution of an organic compound by placing a drop of the solution on the insulator and spinning of the excess. Electrical measurement of the second derivative of voltage with respect to current, as a function of applied voltage, then gives a spectrum of vibrational modes equivalent to an infrared or Raman spectrum, but with the use of only micrograms of sample.Keywords
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