PHOTOCHEMICAL PROCESSES IN MIXED LANGMUIR-BLODGETT-FILMS OF RHODAMINE-B AND ANTHRACENE

Authors
VUORIMAA E LEMMETYINEN H VANDERAUWERAER M DESCHRYVER FC
Citation
E. Vuorimaa et al., PHOTOCHEMICAL PROCESSES IN MIXED LANGMUIR-BLODGETT-FILMS OF RHODAMINE-B AND ANTHRACENE, Thin solid films, 268(1-2), 1995, pp. 114-120
Citations number
24
Categorie Soggetti
Physics, Applied","Material Science","Physics, Condensed Matter
Journal title
Thin solid films → ACNP
ISSN journal
00406090
Volume
268
Issue
1-2
Year of publication
1995
Pages
114 - 120
Database
ISI
SICI code
0040-6090(1995)268:1-2<114:PPIMLO>2.0.ZU;2-G
Abstract
The photoinduced transient states of mixed octadecylrhodamine B (R) an d 2-(9-anthroyloxy) stearic acid (A) Langmuir-Blodgett (LB) films are studied by the flash photolysis method, The R molecules in LB films ex ist predominantly as dimers. The triplet state of the R dimer decays b y reactions, which partly directly regenerates the dye in the ground s tate and partly produces a dimer radical pair, In the presence of A, a n electron-hole pair is formed by an electron transfer from A to the e xcited singlet state of R.