Zhang, Hai; Chen, Zhen-E.; Hu, Jiefang; Hong, Yanping published an article about the compound: tert-Butyl 2-cyanoacetate( cas:1116-98-9,SMILESS:O=C(OC(C)(C)C)CC#N ).SDS of cas: 1116-98-9. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:1116-98-9) through the article.
Two novel D-π-A dyes (FD and SD) were synthesized for dye-sensitized solar cells (DSSCs). The two rod-shaped mols. with an identical π-spacer di(1-benzothieno)[3,2-b:2′,3′-d]pyrrole and with a different donor Group 5,11-dihydroindolo[3,2-b]carbazole for FD or 11,12-dihydroindolo[2,3-a]carbazole for SD were studied. Compared to FD, the sensitizer SD not only showed a broader absorption spectrum extended to IR region which was conducive to enhancing the light-trapping capability and thus to increase the photocurrent of the device fabricated with SD, but also exhibited better inhibition of dye aggregation resulting in a higher photovoltage. With the co-adsorption of chenodeoxycholic acid (CDCA), the photovoltaic performance of DSSCs based on the two dyes has dropped significantly. The aggregation of the two dyes FD and SD can be controlled by linking multiple branched alkyl chains in the structure. Finally, FD and SD-based cells without CDCA achieved power conversion efficiencies (PCE) of 7.20% and 7.47%, resp., in liquid DSSCs. Correspondingly, FD and SD displayed PCE values of 5.77% and 6.67% in quasi-solid-state DSSCs, resp., under standard global 1.5 solar conditions.
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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem