D18-2Br has a rigid electron accepting dithienobezothiadiazole (DTBT) core with two electron-donating 5-bromo-4-butyloctylthiophene units. The large side alkyl chains are there to promote solubility for solution processing of the end products that acquire D18-2Br as building block.
D18-2Br has been used for the synthesis of polymer D18 which gave a PCE of 18.22% while Y6 was used as the non-fullerene acceptor.
|Molecular weight||907.02 g/mol|
|Classification / Family||Dithieno[3',2':3,4;2'',3'':5,6]benzo[1,2-c][1,2,5]thiadiazole (DTBT) derivatives, Organic semiconducting materials, Semiconductor Synthesis, Low band gap polymers, OFETs, OLED, Organic Photovoltaics, NFA-OSCs.|
Literature and Reviews
- Multi-channel exciton dissociation in D18/Y6 complexes for high-efficiency organic photovoltaics, Z. Cao et al., J. Mater. Chem. A, 8, 20408-20413 (2020); doi: 10.1039/D0TA07996K.
- 18% Efficiency organic solar cells, Q Liu et al., Sci. Bull. 65, 272 (2020); doi: 10.1016/j.scib.2020.01.001.
- Nonfullerene Acceptors: A Renaissance in Organic Photovoltaics? P. Meredith et al., Adv. Energy Mater., 10 (33); 2001788 (2020); doi: 10.1002/aenm.202001788.
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