Conjugated polymers based on C, Si and N-bridged dithiophene and thienopyrroledione units: synthesis, field-effect transistors and bulk heterojunction polymer solar cells
- 27 January 2011
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 21 (11), 3895-3902
- https://doi.org/10.1039/c0jm03927f
Abstract
A series of low band-gap conjugated polymers (PDTC, PDTSi and PDTP) containing electron-rich C-, Si-, and N-bridged bithiophene and electron-deficient thienopyrroledione units were synthesized viaStille coupling polymerization. All these polymers possess a low-lying energy level for the highest occupied molecular orbital (HOMO) (as low as −5.44 eV). As a result, photovoltaic devices derived from these polymers show high open circuit voltage (Voc as high as 0.91 V). These rigid polymers also possess respectable hole mobilities of 1.50 × 10−3, 6.0 × 10−4, and 3.9 × 10−4 cm2 V−1s−1 for PDTC, PDTSi, and PDTP, respectively. The combined high Voc and good hole mobility enable bulk hetero-junction photovoltaic cells to be fabricated with relatively high power conversion efficiency (PCE as high as 3.74% for the PDTC-based device).This publication has 40 references indexed in Scilit:
- Synthesis of Conjugated Polymers for Organic Solar Cell ApplicationsChemical Reviews, 2009
- Development of Novel Conjugated Donor Polymers for High-Efficiency Bulk-Heterojunction Photovoltaic DevicesAccounts of Chemical Research, 2009
- Fabrication and processing of polymer solar cells: A review of printing and coating techniquesSolar Energy Materials and Solar Cells, 2009
- Polymer‐Fullerene Bulk‐Heterojunction Solar CellsAdvanced Materials, 2009
- Efficiency enhancement in low-bandgap polymer solar cells by processing with alkane dithiolsNature Materials, 2007
- Conjugated Polymer-Based Organic Solar CellsChemical Reviews, 2007
- High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blendsNature Materials, 2005
- Plastic Solar CellsAdvanced Functional Materials, 2001
- Polymer Photovoltaic Cells: Enhanced Efficiencies via a Network of Internal Donor-Acceptor HeterojunctionsScience, 1995
- Photoinduced Electron Transfer from a Conducting Polymer to BuckminsterfullereneScience, 1992