Ultrafast charge separation at a polymer-single-walled carbon nanotube molecular junction.
Nano Lett 11:1 (2011) 66-72
Abstract:
We have investigated the charge photogeneration dynamics at the interface formed between single-walled carbon nanotubes (SWNTs) and poly(3-hexylthiophene) (P3HT) using a combination of femtosecond spectroscopic techniques. We demonstrate that photoexcitation of P3HT forming a single molecular layer around a SWNT leads to an ultrafast (∼430 fs) charge transfer between the materials. The addition of excess P3HT leads to long-term charge separation in which free polarons remain separated at room temperature. Our results suggest that SWNT-P3HT blends incorporating only small fractions (1%) of SWNTs allow photon-to-charge conversion with efficiencies comparable to those for conventional (60:40) P3HT-fullerene blends, provided that small-diameter tubes are individually embedded in the P3HT matrix.Energy Transfer in Single-Stranded DNA-Templated Stacks of Naphthalene Chromophores
JOURNAL OF PHYSICAL CHEMISTRY C 115:21 (2011) 10550-10560
Surface Energy Relay Between Cosensitized Molecules in Solid-State Dye-Sensitized Solar Cells
JOURNAL OF PHYSICAL CHEMISTRY C 115:46 (2011) 23204-23208
Ultrafast Charge Separation at a Single-walled Carbon Nanotube – Polymer Interface
MRS Advances Springer Nature 1286:1 (2011) 207
Characterisation of Nanostructures via Terahertz Spectroscopy
Institute of Electrical and Electronics Engineers (IEEE) 1 (2010) 23-24