Time-resolved fluorescence was measured with hetero Langmuir-Blodgett (LB) films consisting of ferrocene/flavin/viologen/TCNQ on quartz substrate. Ferrocene, flavin, viologen and TCNQ were used as a electron donor (D), sensitizer (S), relay (R) and acceptor (A) units, respectively. Power dependence on charge separation rate was investigated to examine the local heating problem or the excited state annihilation. Based on the decay of fluorescence, charge separation from excited S to R (or A) was calculated. Result showed that long-range electron transfer from S to A occurred in the D/S/R/A hetero LB film in addition to the electron transfer from S to R.
|Number of pages||4|
|Journal||Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals|
|Publication status||Published - 1999|
Bibliographical noteFunding Information:
This work is supported by the Research Fund on Optical Technology (F-15, 1997) of Korean Ministry of Science and Technology and supported by Creative Research Initiatives of the Korean Ministry of Science and Technology.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics