Correlating dynamics and selectivity in adsorption of semiconductor nanocrystals onto a self-organized pattern.
Selective adsorption of semiconductor nanocrystals onto an organic self-organized pattern shows a time-dependent behavior. By studying the wetting behavior of delivered solvent (1-phenyloctane) on a lipid self-organized pattern and determining the adhesion energy between semiconductor nanocrystals and substrate, we obtain a correlation between dynamics and selectivity in adsorption of semiconductor nanocrystals onto the pattern by constructing a potential energy landscape. Two consecutive steps for selective adsorption of nanocrystals onto the self-organized pattern have been established: the first one is the molecule exchange of 1-phenyloctane and lipid molecules to form the adsorption sites for nanocrystals, and the second one is the adsorption of nanocrystals onto the adsorption sites due to the strong interaction between nanocrystals and substrate.
Chen
Xiaodong
X
Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149 Münster, Germany.
Hirtz
Michael
M
Rogach
Andrey L
AL
Talapin
Dmitri V
DV
Fuchs
Harald
H
Chi
Lifeng
L
D015060:1,2-Dipalmitoylphosphatidylcholine / Q000737:chemistry; D000327:Adsorption; D001555:Benzene Derivatives / Q000737:chemistry*; D003460:Crystallization; D008055:Lipids / Q000737:chemistry; D018625:Microscopy, Atomic Force; D008968:Molecular Conformation; D053758:Nanoparticles; D036103:Nanotechnology / Q000379:methods*; D045663:Quantum Dots; D012666:Semiconductors; D012997:Solvents / Q000737:chemistry*; D013379:Substrate Specificity; D013997:Time Factors
D001555:Benzene Derivatives; D008055:Lipids; D012997:Solvents; C053763:n-octylbenzene; D015060:1,2-Dipalmitoylphosphatidylcholine