Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 14, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3645587
Keywords
carbon nanotubes; conducting polymers; dissociation; excitons; hole mobility; nanowires; photovoltaic effects
Categories
Funding
- NSF [CBET0967789]
- Dowd Fellowship
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0967789] Funding Source: National Science Foundation
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Efficiently extracting hole from a 3-dimensional bulk heterojunction is critical to polymer photovoltaics. One possible approach is to incorporate efficient hole transport pathway within each individual nanoscale donor-phase component. We present a study employing electrochemically prepared metallic carbon nanotube (CNT) polythiophene (PT) core-shell nanowire networks trying to realize such a desired structure. Phenyl-C-60-butyric acid methyl ester was infiltrated into the openings of the core-shell nano-networks as electron acceptor. The thin PT shell can ensure high exciton dissociation rate and efficient free hole transport to the CNT core which serves as an efficient network for extracting hole out of the heterojunction. (C) 2011 American Institute of Physics. [doi:10.1063/1.3645587]
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