Studies of photoionization in liquids using a laser two-photon ionization conductivity technique. [Potoionization of pyrene, fluoranthene and TMPD in liquid n-pentane]

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:6293660

Siomos, K; Christophorou, L G

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
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AMINES
AROMATICS
COLLISIONS
CONDENSED AROMATICS
DATA
ELECTROMAGNETIC RADIATION
ENERGY DEPENDENCE
EXPERIMENTAL DATA
FLUIDS
HYDROCARBONS
INFORMATION
IONIZATION
LASER RADIATION
LIQUIDS
MOLECULE COLLISIONS
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTON COLLISIONS
PHOTON-MOLECULE COLLISIONS
PYRENE
RADIATIONS