Abstract
The synthesis of novel low band-gap polymers has significantly improved light sensing and harvesting in polymer-fullerene devices. Here the synthesis of two low band-gap polymers based on the 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene core (BODIPY), and either bis(3,4-ethylenedioxythiophene) (bis-EDOT) or its all-sulfur analogue bis(3,4-ethylenedithiathiophene) (bis-EDTT) are described. The polymers demonstrate ambipolar charge transport and are shown to be suitable for broadband light sensing and solar energy harvesting in solution-processable polymer-fullerene devices.
Original language | English |
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Pages (from-to) | 14119-14126 |
Number of pages | 8 |
Journal | Journal of Materials Chemistry |
Volume | 22 |
Issue number | 28 |
DOIs | |
Publication status | Published - 2012 |
Keywords
- COPOLYMERS
- DYE
- EDOT
- CONDUCTING POLYMER
- DONOR
- EFFICIENCY
- PHOTOVOLTAIC CELLS
- HETEROJUNCTION SOLAR-CELLS
- ENERGY-TRANSFER
- FLUORESCENT