|Classification / Family||Benzodithiophene (BDT) derivatives, Organic semiconducting materials, Semiconductor Synthesis, Low band gap polymers, Organic Photovoltaics.|
|Melting point||70-75 °C|
4,8-Bis[(2-ethylhexyl)oxy]-2,6-bis(trimethylstannyl)benzo[1,2-b:4,5-b']dithiophene (BDTOEHSn) is the intermediate for the synthesis of low bandgap semiconducting polymers such as PTB7 and PBDTTPD. Ethylhexyl side chains can help to promote stability and solubility of the target structure or polymer.
Benzo[1,2-b:4,5-b']dithiophene (BDT) is one of the widely used building blocks to produce polymer structures for highly efficient organic solar cells, in a blend with fullerene or non-fullerene acceptors.
Literature and Reviews
- Improving the long-term stability of PBDTTPD polymer solar cells through material purification aimed at removing organic impurities, W. Mateker et al., Energy Environ. Sci., 6, 2529 (2013); DOI: 10.1039/c3ee41328d.
- Interplay Between Side Chain Pattern, Polymer Aggregation, and Charge Carrier Dynamics in PBDTTPD:PCBM Bulk-Heterojunction Solar Cells, C. Dyer-Smith et al., Adv. Energy Mater., 5(9), 1401778 (2015); doi: 10.1002/aenm.201401778.
- Absolute Measurement of Domain Composition and Nanoscale Size Distribution Explains Performance in PTB7:PC71BM Solar Cells, B. Collins et al., Adv. Energy Mater., 3(1), 1200377 (2013); DOI:10.1002/aenm.201200377.
- Electron Collection as a Limit to Polymer:PCBM Solar Cell Efficiency: Effect of Blend Microstructure on Carrier Mobility and Device Performance in PTB7:PCBM, S. Foster et al., Adv. Energy Mater., 1400311 (2014); DOI: 10.1002/aenm.201400311.
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