Improved efficiency of photovoltaics based on CdSe nanorods and poly(3-hexylthiophene) nanofibers
- 30 May 2006
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Physical Chemistry Chemical Physics
- Vol. 8 (30), 3557-3560
- https://doi.org/10.1039/b604734n
Abstract
We present photovoltaic devices based on a blend of the conjugated polymer poly(3-hexylthiophene) (P3HT) with cadmium selenide nanorods, where the solvent for film deposition has been carefully chosen to optimize the film morphology. Using 1,2,4-trichlorobenzene (TCB), which has a high boiling point, as solvent for P3HT it is possible to obtain a fibrilar morphology, providing extended pathways for hole transport. Blend devices fabricated using this solvent gave solar power conversion efficiencies of 2.6%. This indicates that efficient transport of electrons and holes is achieved in these films, allowing them to operate effectively at solar illumination intensities.Keywords
This publication has 14 references indexed in Scilit:
- Influence of the Molecular Weight of Poly(3-hexylthiophene) on the Performance of Bulk Heterojunction Solar CellsChemistry of Materials, 2005
- Nanoscale Morphology of High-Performance Polymer Solar CellsNano Letters, 2005
- Vertically segregated hybrid blends for photovoltaic devices with improved efficiencyJournal of Applied Physics, 2004
- Field effect conductance of conducting polymer nanofibersJournal of Polymer Science Part B: Polymer Physics, 2003
- Photovoltaic Devices Using Blends of Branched CdSe Nanoparticles and Conjugated PolymersNano Letters, 2003
- Charge transport in hybrid nanorod-polymer composite photovoltaic cellsPhysical Review B, 2003
- Hybrid Nanorod-Polymer Solar CellsScience, 2002
- 2.5% efficient organic plastic solar cellsApplied Physics Letters, 2001
- Two-dimensional charge transport in self-organized, high-mobility conjugated polymersNature, 1999
- Whiskers of poly(3‐alkylthiophene)sJournal of Polymer Science Part B: Polymer Physics, 1993