An Organic D-π-A Dye for Record Efficiency Solid-State Sensitized Heterojunction Solar Cells
- 4 March 2011
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 11 (4), 1452-1456
- https://doi.org/10.1021/nl104034e
Abstract
The high molar absorption coefficient organic D-π-A dye C220 exhibits more than 6% certified electric power conversion efficiency at AM 1.5G solar irradiation (100 mW cm−2) in a solid-state dye-sensitized solar cell using 2,2′,7,7′-tetrakis(N,N-dimethoxyphenylamine)-9,9′-spirobifluorene (spiro-MeOTAD) as the organic hole-transporting material. This contributes to a new record (6.08% by NREL) for this type of sensitized heterojunction photovoltaic device. Efficient charge generation is proved by incident photon-to-current conversion efficiency spectra. Transient photovoltage and photocurrent decay measurements showed that the enhanced performance achieved with C220 partially stems from the high charge collection efficiency over a wide potential range.This publication has 24 references indexed in Scilit:
- Highly Efficient Light-Harvesting Ruthenium Sensitizer for Thin-Film Dye-Sensitized Solar CellsACS Nano, 2009
- Dye-Sensitized Solar Cells with a High Absorptivity Ruthenium Sensitizer Featuring a 2-(Hexylthio)thiophene Conjugated BipyridineThe Journal of Physical Chemistry C, 2009
- Enhance the Optical Absorptivity of Nanocrystalline TiO2 Film with High Molar Extinction Coefficient Ruthenium Sensitizers for High Performance Dye-Sensitized Solar CellsJournal of the American Chemical Society, 2008
- Molecular Engineering of Organic Sensitizers for Solar Cell ApplicationsJournal of the American Chemical Society, 2006
- Dye-Sensitized Solar Cells with Conversion Efficiency of 11.1%Japanese Journal of Applied Physics, 2006
- Combined Experimental and DFT-TDDFT Computational Study of Photoelectrochemical Cell Ruthenium SensitizersJournal of the American Chemical Society, 2005
- High Efficiency of Dye-Sensitized Solar Cells Based on Metal-Free Indoline DyesJournal of the American Chemical Society, 2004
- Molecular Design of Coumarin Dyes for Efficient Dye-Sensitized Solar CellsThe Journal of Physical Chemistry B, 2002
- Photoelectrochemical cellsNature, 2001
- A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 filmsNature, 1991