Photoelectron Emission Spectroscopy of Solvated Electrons.
Abstract
Instrumentation and methodology were developed for photoelectron emission (PEE) spectroscopy of sodium solutions in hexamethyl phosphoric triamide (HMPA) for irradiation from 1 to 3.7 eV. PEE currents were corrected by the Thomson equation for back scattering in the gas (nitrogen at 200 to 800 torr) above the solution. The Schottky effect for PEE was smaller than for thermionic emission and decreased with increasing photon energy. PEE spectra exhibited two steps corresponding, respectively, to emission by solvated electron species and metal species. The corresponding thresholds, obtained from Einstein plots, are approximately 1.4 and 2.6 eV. The first threshold is compared with the energy of the ls state for a simple cavity model. Quantum yields were low, e.g., 0.00001 emitted electron per incident photon. Thermionic and PEE currents are correlated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1971
- Accession Number
- AD0727099
Entities
People
- Bill Baron
- Paul Delahay
- Roberto Lugo
Organizations
- New York University