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Fullerene-multiwalled carbon nanotube complexes for bulk heterojunction photovoltaic cells
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/content/aip/journal/apl/96/14/10.1063/1.3386526
2010-04-07
2014-09-01

Abstract

We demonstrate the implementation of multiwalled carbon nanotubes-fullerene (MWNT-) complexes in bulk heterojunction organic photovoltaic (OPV) cells. Such a design takes advantage of the as an electron acceptor, while the MWNTs serve as efficient charge transporters. Two types of chemically functionalized MWNTs were used to synthesize these complexes. The first used carboxylated nanotubes, while the latter were functionalized with octadecylamine . All the photovoltaic parameters were found to be superior with , and their combined effect led to eight times higher power conversion efficiency. The enhancement was attributed to the electron withdrawing nature of the short carboxylic group which facilitated fast electron transfer from the to the nanotube backbone, whereas the long alky chain on the served as an electron blocker. Therefore, it is evident that the form of functionalization is expected to have significant effect on the performance of OPVs containing carbon nanotubes.

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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Fullerene-multiwalled carbon nanotube complexes for bulk heterojunction photovoltaic cells
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/14/10.1063/1.3386526
10.1063/1.3386526
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