Probing colloidal interfaces by angle-resolved second harmonic light scattering

2010 ◽  
Vol 82 (24) ◽  
Author(s):  
B. Schürer ◽  
S. Wunderlich ◽  
C. Sauerbeck ◽  
U. Peschel ◽  
W. Peukert
Keyword(s):  
Light Scattering ◽  
Second Harmonic ◽  
Colloidal Interfaces

Second-harmonic elastic light scattering by molecular liquid mixtures

1975 ◽  
Vol 36 (10) ◽  
pp. 1015-1021 ◽  
Author(s):  
S. Kielich ◽  
M. Kozierowski ◽  
J.-R. Lalanne
Keyword(s):  
Light Scattering ◽  
Second Harmonic ◽  
Liquid Mixtures ◽  
Elastic Light Scattering ◽  
Molecular Liquid

scholarly journals Harmonic light scattering study reveals structured clusters upon the supramolecular aggregation of regioregular poly(3-alkylthiophene)

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Michèle Moris ◽  
Marie-Paule Van Den Eede ◽  
Guy Koeckelberghs ◽  
Olivier Deschaume ◽  
Carmen Bartic ◽  
...  
Keyword(s):  
Light Scattering ◽  
Second Harmonic ◽  
Electronic Spectroscopy ◽  
Supramolecular Organization ◽  
Solvent Quality ◽  
Classical Characterization ◽  
Second Harmonic Scattering ◽  
Solvent Clusters ◽  
External Stimuli ◽  
Supramolecular Aggregation

Abstract Solubilized poly(3-alkylthiophene)s are known to self-assemble into well-ordered supramolecular aggregates upon lowering the solvent quality. This supramolecular organization largely determines the optical and electronic properties of these polymers. However, despite numerous studies the exact mechanism and kinetics of the aggregation process and the role of external stimuli are still poorly understood. Classical characterization techniques such as electronic spectroscopy, dynamic light scattering, and diffraction-based techniques have not been able to provide a full understanding. Here we use second-harmonic scattering (SHS) and third-harmonic scattering (THS) techniques to investigate this supramolecular aggregation mechanism. Our results indicate that the actual supramolecular aggregation is preceded by the formation of structured polymer-solvent clusters consistent with a nonclassical crystallization pathway.

Sign in / Sign up

Export Citation Format

Share Document