| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1267143 | Organic Electronics | 2016 | 6 Pages |
•Two new small molecules using alkylthiol flexible side chain to function BDTT based thiophene-conjugated were constructed.•High performance with PCEs of over 8% for these two molecules based devices were obtained.•DRSBDTT-BO based devices have better reproducibility than that of DRSBDTT-EH due to its good solubility in chloroform.
Two new small molecules, namely DRSBDTT-EH and DRSBDTT-BO, with alkylthio thienyl substituted benzodithiophene as the central unit and 3-ethylrhodanine as end groups, were designed and studied as the donors for solution processed organic solar cells. The optimized device based on DRSBDTT-EH bearing shorter alkylthio chain gave a power conversion efficiency (PCE) of 8.78%, which is slightly higher than that of device (8.53%) based on DRSBDTT-BO with longer alkylthio chain.
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