Enhancing light absorption and carrier transport of P3HT by doping multi-wall carbon nanotubes
Journal
Chemical Physics Letters
Journal Volume
468
Journal Issue
1-3
Pages
64-68
Date Issued
2009
Author(s)
Abstract
We have investigated the enhancement of light absorption and carrier transport of poly(3-hexylthiophene) (P3HT) resulted from doping with multi-wall carbon nanotubes (MWNTs). The MWNTs were acid washed first, and then incorporated into P3HT homogenously. The MWNTs make P3HT unfolded with more alignment and thus increase light absorption as shown by the studies of AFM and UV-vis spectroscopy. The KFM data provides useful information to differentiate the work function of the MWNTs from P3HT and further show improved hole transporting behaviors. Based upon these results, the 0.01 wt% MWNTs doped P3HT/PCBM photovoltaic device shows an increase of 29% power conversion efficiency. © 2008.
SDGs
Other Subjects
Absorption; Absorption spectroscopy; Civil aviation; Conversion efficiency; Doping (additives); Electromagnetic wave absorption; Energy absorption; Light absorption; Multiwalled carbon nanotubes (MWCN); Nanocomposites; Nanotubes; Ultraviolet spectroscopy; Photovoltaic devices; VIS spectroscopies; Carbon nanotubes
Type
journal article