Accession Number:

ADP007929

Title:

Electronic Energy Transfer between Donor and Acceptor Adlayers on Single-Crystal Surfaces: Distance and Coverage Dependence,

Descriptive Note:

Corporate Author:

STANFORD UNIV CA DEPT OF CHEMISTRY

Personal Author(s):

• Haynes, D. R.
• Tokmakoff, A.
• George, S. M.

Report Date:

1992-05-22

Pagination or Media Count:

4.0

Abstract:

Electronic energy transfer in surface adlayers is a mechanism of fundamental importance to surface photochemical processes. In this study, the electronic energy transfer from a donor p-terphenyl TP adlayer to an acceptor 9,10-diphenylanthracene DPA adlayer was studied using quantum yield measurements at 30 K and 85 K. These investigations employed an A12030001 crystal surface as a two-dimensional support on which donor, spacer and acceptor adlayers could be sequentially adsorbed. The quantum yield measurements were performed in ultra high vacuum UHV utilizing laser induced fluorescence techniques.

Descriptors:

• *ADATOMS
• *PHOTOCHEMICAL REACTIONS
• CRYSTALS
• ELECTRONICS
• ENERGY TRANSFER
• HIGH VACUUM
• LASER INDUCED FLUORESCENCE
• MEASUREMENT
• SURFACES
• TWO DIMENSIONAL
• ANTHRACENES
• PHENYL RADICALS
• ULTRAHIGH VACUUM

Subject Categories:

• Radiation and Nuclear Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE