摘要
A series polyurea/malonamide dendron (G0.5-G2.5) containing C10 alkyl chain located at the peripheral were prepared as dendritic building blocks via alternative addition and ring opening reactions. Afterward, G0.5, G1.5 and G2.5 consisting of azetidine-2,4-dione functional group was selected and reacted with 6-aminohexanoic to generate the corresponding acid anchor containing dendritic co-adsorbents (GA6-0.5, GA6-1.5 and GA6-2.5). The dye-sensitized solar cells (DSSCs) were then fabricated using phenothiazine-based dyes (HL5) as sensitizer with different generations and concentrations of dendritic co-adsorbents to explore the effect on cell performances and interfacial charge properties. Upon addition 0.3 mM of GA6-2.5 co-adsorbent, the best efficiency was 6.66 ± 0.07%, with a current density (Jsc) of 12.88 ± 0.11 mA cm−2, an open circuit voltage (Voc) of 0.72 ± 0.00 V and a fill factor of 0.72 ± 0.00. This cell exhibits superior efficiency than the HL5 dye only (PCE = 5.67 ± 0.17%) and slightly higher than the standard 3 mM CDCA co-adsorbent based device (PCE = 6.33 ± 0.04%). In addition, this best efficiency of this cell reached 83% of the N719 standard cell. This study may pave a new way for achieving high-performance with low cost on DSSCs applications.
原文 | 英語 |
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文章編號 | 121673 |
期刊 | Polymer |
卷 | 179 |
DOIs | |
出版狀態 | 已發佈 - 2019 9月 28 |
對外發佈 | 是 |
ASJC Scopus subject areas
- 有機化學
- 聚合物和塑料
- 材料化學