Viscoplastic and granular behavior in films of colloidal nanocrystals.
نویسندگان
چکیده
Nanoindentation measurements of electrophoretically deposited films of colloidal CdSe nanocrystals, capped by organic ligands, show the films have an elastic stiffness modulus of approximately 10 GPa and exhibit viscoplasticity. This mechanical response suggests polymeric features that are attributable to the ligands. After particle cross-linking and partial ligand removal, the films exhibit more features of granularity.
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ورودعنوان ژورنال:
- Physical review letters
دوره 98 2 شماره
صفحات -
تاریخ انتشار 2007