Fluorescence spectral change of LB films containing. omega. -(1-pyrenyl)alkanoic acids induced by an excimer laser

Journal Article · · Langmuir; (USA)

DOI:https://doi.org/10.1021/la00090a024· OSTI ID:6952472

Itaya, Akira; Masuhara, Hiroshi ^[1]; Taniguchi, Yoshio; Imazeki, Shuji ^[2]

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1. Kyoto Institute of Technology (Japan)
2. Hitachi Ltd., Tokyo (Japan)

Langmuir-Blodgett (LB) films of a mixture of {omega}-(1-pyrenyl)alkanoic and arachidic acids showed fluorescence spectral changes upon irradiation with an excimer laser and a Xe lamp, although absorption spectral change was not observed. This characteristic phenomenon depended upon irradiation light source and the number of methylenes in the alkanoic acids. The fluorescence spectral change induced by laser irradiation was attributed to structural change of fluorescent pyrenyl aggregates. The new aggregates of 8-(1-pyrenyl)octanoic acid have the common local structure among vacuum-deposited, cast, and LB films.

• OSTI ID: 6952472
• Journal Information: Langmuir; (USA), Journal Name: Langmuir; (USA) Vol. 5:6; ISSN 0743-7463; ISSN LANGD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
360603 -- Materials-- Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400200 -- Inorganic
Organic
& Physical Chemistry
ARACHIDONIC ACID
CARBOXYLIC ACIDS
DATA
DATA ANALYSIS
ELECTROMAGNETIC RADIATION
EMISSION SPECTROSCOPY
EXCIMER LASERS
EXPERIMENTAL DATA
FILMS
FLUORESCENCE SPECTROSCOPY
GAS LASERS
INFORMATION
LASER RADIATION
LASERS
MEASURING INSTRUMENTS
MEASURING METHODS
MONOCARBOXYLIC ACIDS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
RADIATIONS
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
THIN FILMS