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Long-range excitation energy transfer in Langmuir-Blodgett multilayer systems

✍ Scribed by Sonja Draxler; Max E. Lippitsch; Franz R. Aussenegg


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
281 KB
Volume
159
Category
Article
ISSN
0009-2614

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✦ Synopsis


In Langmuir-Blodgett films containing organic dyes, efficient 'energy transfer over distances exceeding 100 nm is observed. This exceptionally long-range transfer is interpreted as due to special mutual onentatlon of the dye molecules.


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LB films of stearic acid mixed with long-chain substituted naphthols (2-stearoyl-1-naphthol, 2-octadecyl-I-naphthol, l-octadecyl-2-naphthol) were prepared. Intramolecular excited-state proton transfer in 2-stearoyl-1-naphthol was found to proceed with a high rate constant (> IO"' s-l) both in LB fi