Dithienothiophene (DTT)-Based Dyes for Dye-Sensitized Solar Cells: Synthesis of 2,6-Dibromo-DTT
- 26 April 2011
- journal article
- research article
- Published by American Chemical Society (ACS) in The Journal of Organic Chemistry
- Vol. 76 (10) , 4088-4093
Abstract
A one-pot synthesis of 2,6-dibromodithieno[3,2-b;2′,3′-d]thiophene (dibromo-DTT, 4) was developed. A key step was bromodecarboxylation of DTT-2,6-dicarboxylic acid, obtained by saponification of the diester 1. The donor–acceptor dye DAHTDTT (13), based on a central 2,6-bis[2′-(3′-hexylthienyl)]dithieno[3,2-b;2′,3′-d]thiophene core (9), was prepared and incorporated in a dye-sensitized solar cell (DSC), which exhibited an energy conversion efficiency of 7.3% with Voc of 697 mV, Jsc of 14.4 mA/cm2, and ff of 0.73 at 1 sun.Keywords
This publication has 31 references indexed in Scilit:
- Highly Efficient Mesoscopic Dye‐Sensitized Solar Cells Based on Donor–Acceptor‐Substituted PorphyrinsAngewandte Chemie International Edition, 2010
- Efficient Dye-Sensitized Solar Cells with an Organic Photosensitizer Featuring Orderly Conjugated Ethylenedioxythiophene and Dithienosilole BlocksChemistry of Materials, 2010
- Organic Dyes Incorporating the Dithieno[3,2-b:2′,3′-d]thiophene Moiety for Efficient Dye-Sensitized Solar CellsOrganic Letters, 2009
- Triarylamine: a promising core unit for efficient photovoltaic materialsChemical Communications, 2009
- Molecular Designs and Syntheses of Organic Dyes for Dye‐Sensitized Solar CellsEuropean Journal of Organic Chemistry, 2009
- Metal‐Free Organic Dyes for Dye‐Sensitized Solar Cells: From Structure: Property Relationships to Design RulesAngewandte Chemie International Edition, 2009
- An Organic Sensitizer with a Fused Dithienothiophene Unit for Efficient and Stable Dye-Sensitized Solar CellsJournal of the American Chemical Society, 2008
- Effect of Different Dye Baths and Dye-Structures on the Performance of Dye-Sensitized Solar Cells Based on Triphenylamine DyesThe Journal of Physical Chemistry C, 2008
- Thiophene-Functionalized Coumarin Dye for Efficient Dye-Sensitized Solar Cells: Electron Lifetime Improved by Coadsorption of Deoxycholic AcidThe Journal of Physical Chemistry C, 2007
- Effect of a Coadsorbent on the Performance of Dye-Sensitized TiO2 Solar Cells: Shielding versus Band-Edge MovementThe Journal of Physical Chemistry B, 2005