CdSe Nanoplatelets: Living Polymers.
Angew Chem Int Ed Engl
; 55(32): 9371-4, 2016 08 01.
Article
in En
| MEDLINE
| ID: mdl-27329047
ABSTRACT
Colloidal CdSe nanoplatelets are considered to be excellent candidates for many applications in nanotechnology. One of the current challenges is to self-assemble these colloidal quantum wells into large ordered structures to control their collective optical properties. We describe a simple and robust procedure to achieve controlled face-to-face self-assembly of CdSe nanoplatelets into micron-long polymer-like threads made of up to â¼1000 particles. These structures are formed by addition of oleic acid to a stable colloidal dispersion of platelets, followed by slow drying and re-dispersion. We could control the average length of the CdSe nanoplatelet threads by varying the amount of added oleic acid. These 1-dimensional structures are flexible and feature a "living polymer" character because threads of a given length can be further grown through the addition of supplementary nanoplatelets at their reactive ends.
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Database:
MEDLINE
Language:
En
Year:
2016
Type:
Article