Studies of photoionization in liquids using a laser two-photon ionization conductivity technique. [Potoionization of pyrene, fluoranthene and TMPD in liquid n-pentane]
One-photon ionization studies of solute molecules in a liquid medium are limited by the absorption of the host medium. A laser two-photon ionization (TPI) technique using a frequency tunable dye laser has been developed, whereby the photoionization threshold of a solute molecule was determined from the induced conductivity in the liquid medium under study due to electron-ion pair formation via two-photon ionization of the solute. The two-photon induced electron-ion current is measured as a function of the laser wavelength, lambda/sub laser/. In this paper, results are reported and discussed on the photoionization of N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD), pyrene and fluoranthene in liquid n-pentane (n-Pt).
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6293660
- Report Number(s):
- CONF-810734-2; ON: DE81026514; TRN: 81-015657
- Resource Relation:
- Conference: 7. international conference on conduction and breakdown in dielectric liquids, Berlin, F.R. Germany, 27 Jul 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AMINES
PHOTON-MOLECULE COLLISIONS
CONDENSED AROMATICS
IONIZATION
PYRENE
ENERGY DEPENDENCE
EXPERIMENTAL DATA
LASER RADIATION
LIQUIDS
AROMATICS
COLLISIONS
DATA
ELECTROMAGNETIC RADIATION
FLUIDS
HYDROCARBONS
INFORMATION
MOLECULE COLLISIONS
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTON COLLISIONS
RADIATIONS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena