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In situ GISAXS monitoring of Langmuir nanoparticle multilayer degradation processes induced by UV photolysis
Author(s) -
Vegso Karol,
Siffalovic Peter,
Weis Martin,
Jergel Matej,
Benkovicova Monika,
Majkova Eva,
Chitu Livia,
Halahovets Yuryi,
Luby Stefan,
Capek Ignac,
Satka Alexander
Publication year - 2011
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201184275
Subject(s) - grazing incidence small angle scattering , nanoparticle , materials science , langmuir , bilayer , irradiation , scattering , chemical engineering , analytical chemistry (journal) , nanotechnology , chemical physics , optics , chemistry , small angle neutron scattering , adsorption , membrane , organic chemistry , physics , biochemistry , neutron scattering , engineering , nuclear physics
In continuation of our previous studies on Langmuir nanoparticle films we prepared well‐ordered bilayer film on the air–water interface in the Langmuir–Blodgett trough. The distance of neighboring nanoparticles was adjustable by shortening the carbon chain length by UV–ozone irradiation. Kinetics of the nanoparticle reassembly in multilayer structure was monitored in time by grazing‐incidence small angle X‐ray scattering (GISAXS) technique. The interparticle distance determined from the first lateral peak positions decayed exponentially with characteristic time of 102 ± 13 s. The final GISAXS pattern proves nanoparticle multilayer collapse and multilayer agglomeration at the end of the UV exposition.