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The impact of grafted surface defects and their controlled removal on supramolecular self-assembly

We demonstrate the use of covalently modified graphite as a convenient and powerful test-bed for the versatile investigation and control of 2-D crystallization at the liquid solid interface. Grafted aryls act as surface defects and create barriers to supramolecular self-assembly. An easily tunable g...

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Detalles Bibliográficos
Autores principales: Bragança, Ana M., Greenwood, John, Ivasenko, Oleksandr, Phan, Thanh Hai, Müllen, Klaus, De Feyter, Steven
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5355800/
https://www.ncbi.nlm.nih.gov/pubmed/28451139
http://dx.doi.org/10.1039/c6sc02400a
Descripción
Sumario:We demonstrate the use of covalently modified graphite as a convenient and powerful test-bed for the versatile investigation and control of 2-D crystallization at the liquid solid interface. Grafted aryls act as surface defects and create barriers to supramolecular self-assembly. An easily tunable grafting density allows for varying the effect of such defects on supramolecular self-assembly. Finally, the defects can be locally removed, triggering monolayer reconstructions and allowing in situ investigations of thermodynamically unstable or metastable morphologies.