Thermal Behavior of J-Aggregates in a Langmuir−Blodgett Film of Pure Merocyanine Dye Investigated by UV−visible and IR Absorption Spectroscopy

2009 ◽  
Vol 113 (9) ◽  
pp. 2764-2772 ◽  
Author(s):  
Yoshiaki Hirano ◽  
Shinsuke Tateno ◽  
Ari Maio ◽  
Yukihiro Ozaki
Keyword(s):  
Thermal Behavior ◽  
Absorption Spectroscopy ◽  
Ir Absorption ◽  
Blodgett Film ◽  
Langmuir Blodgett ◽  
Uv Visible ◽  
Langmuir Blodgett Film ◽  
J Aggregates

scholarly journals Formation of Metal-free J-aggregates in Merocyanine/Spiropyran Mixed Langmuir-Blodgett Film

2007 ◽  
Vol 472 (1) ◽  
pp. 123/[513]-130/[520]
Author(s):  
Misako Masui ◽  
Yasuko Koshiba ◽  
Yasukiyo Ueda ◽  
Zhenguo Ji
Keyword(s):  
Blodgett Film ◽  
Langmuir Blodgett ◽  
Metal Free ◽  
Langmuir Blodgett Film ◽  
J Aggregates

Langmuir-Blodgett Film of a Processable Polydiacetylene with Tricyanovinyldialkylaniline Chromophore

1999 ◽  
Vol 598 ◽  
Author(s):  
D.-C. Lee ◽  
L. Li ◽  
L. A. Samuelson ◽  
D. J. Sandman
Keyword(s):  
Second Harmonic ◽  
Visible Absorption ◽  
Blodgett Film ◽  
Langmuir Blodgett ◽  
Compression Direction ◽  
Ir Studies ◽  
Out Of Plane ◽  
New Strategy ◽  
Uv Visible ◽  
Langmuir Blodgett Film

ABSTRACTA soluble and processable polydiacetylene (PDA) with functionalizable N,N-dialkylaniline and glutamate ester substituted alkylurethane side groups was synthesized. This PDA was further reacted with tetracyanoethylene to effect postpolymerization functionalization. This new strategy further functionalizes conjugated polymers and introduces a tricyanovinyl (TCV)-aniline chromophore. The resulting polymer was soluble in common organic solvents. Asymmetric multilayers of the tricyanovinylated PDA were fabricated using the Langmuir-Blodgett (LB) technique. Thickness, visible absorption, and second harmonic (SH) intensity were found to increase linearly as a function of the number of layers. Polarized UV-visible and IR studies revealed that the main chain preferentially orients vertical to the compression direction with out-of-plane orientation of the TCV-aniline group with respect to the glass substrate. The resonant enhanced second-order nonlinear optical (NLO) coefficient (d33) of the 20 LB layers was found to be 21 pm/V at 1.064 µm, while no SHG signal was observed for cast or spincoated films.

Thermal behavior of a Langmuir-Blodgett film of dioctadecyldimethylammonium-Au(dmit)2 salt investigated by infrared spectroscopy

2004 ◽  
Vol 464-465 ◽  
pp. 408-411
Author(s):  
Shin-ichi Morita ◽  
Akifumi Ikehata ◽  
Yasuhiro F. Miura ◽  
Michio Sugi ◽  
Yukihiro Ozaki
Keyword(s):  
Infrared Spectroscopy ◽  
Thermal Behavior ◽  
Blodgett Film ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Film
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