Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 15, Pages 4636-4640Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201500763
Keywords
lead telluride; organic-inorganic nanocomposites; PEDOT; polymer template; thermoelectrics
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Funding
- National Science Foundation [ECCS-1305087]
- Air Force Office of Scientific Research [FA9550-13-1-0101, MURI FA9550-14-1-0037]
- Minjiang Scholar Program
- National Natural Science Foundation of China [21490573, 21174115]
- China Scholarship Council
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1305087] Funding Source: National Science Foundation
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1361896] Funding Source: National Science Foundation
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We developed an unconventional route to produce uniform and intimately contacted semiconducting organic-inorganic nanocomposites for potential applications in thermoelectrics. By utilizing amphiphilic star-like PAA-b-PEDOT diblock copolymer as template, monodisperse PEDOT-functionalized lead telluride (PbTe) nanoparticles were crafted via the strong coordination interaction between PAA blocks of star-like PAA-b-PEDOT and the metal moieties of precursors (i.e., forming PEDOT-PbTe nanocomposites). As the inner PAA blocks are covalently connected to the outer PEDOT blocks, the PEDOT chains are intimately and permanently tethered on the PbTe nanoparticle surface, thereby affording a well-defined PEDOT/PbTe interface, which prevents the PbTe nanoparticles from aggregation, and more importantly promotes the long-term stability of PEDOT-PbTe nanocomposites. We envision that the template strategy is general and robust, and offers easy access to other conjugated polymer-inorganic semiconductor nanocomposites for use in a variety of applications.
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