Molecular dipole, dye structure and electron lifetime relationship in efficient dye sensitized solar cells based on donor–π–acceptor organic sensitizers
push–pull organicdyes (LC95 and LC107) to be employed as sensitizers in solarcells. Both molecules contain the bis(4-hexyloxyphenylamino)styril unit as the donor group, the cyanoacrylate acid as the acceptor, and the selenophene–thiophene (LC95 dye) and thiophene–selenophene (LC107 dye) moieties as the conjugated linkers. Dye sensitized solarcells employing these two photosensitizers and the cobalt(II/III)
在这项工作中,我们报告了两种新的推挽有机染料(LC95和LC107)的合成和表征,它们将用作太阳能电池中的敏化剂。这两个分子均包含双(4-己氧基苯氨基)苯乙烯基单元作为供体基团,氰基丙烯酸酸作为受体基团以及硒烯-噻吩(LC95染料)和噻吩-硒烯(LC107染料)部分作为共轭连接体。使用这两种光敏剂和钴(II / III)氧化还原电解质的染料敏化太阳能电池在100 mW cm -2下测得的太阳能到能量转换效率分别为6.3%和6.5%模拟AM1.5阳光。碘/碘化物电解质的效率略低。通过实验测量和量子化学计算,已经讨论了这两种染料的性能并将其与三种密切相关的敏化剂C214,C216和C218进行了比较,并特别注意了它们的几何形状,分子偶极子和电子复合寿命的差异。
On the selectivity in the bromination of selenophene-2-carbonyl derivatives in the presence of aluminum trichloride
作者:Dmitry N. Antonov、Leonid I. Belen'Kii、Salo Gronowitz
DOI:10.1002/jhet.5570320109
日期:1995.1
Bromination reactions of 2-selenophenecarbaldehyde and 2-acetylselenophene in the presence of aluminum trichloride have been investigated and the reactivity and positional selectivity compared with those of the analogous thiophene derivatives.
Solution-Processed Small Molecules Using Different Electron Linkers for High-Performance Solar Cells
作者:Yongsheng Liu、Yang Michael Yang、Chun-Chao Chen、Qi Chen、Letian Dou、Ziruo Hong、Gang Li、Yang Yang
DOI:10.1002/adma.201301716
日期:2013.9.6
Conjugated acceptor–donor–acceptor smallmoleculesusingdifferentelectronlinkers are designed, synthesized, and used in organic solarcells. All of these smallmolecules show high photoconversion efficiencies (PCEs), ranging from 3.18–6.15% under simulated AM 1.5G condition. A maximum PCE of 6.15% combined with a high Voc of 0.85 V, a Jsc of 10.79 mA cm−2 and a notable FF of 67.1% are achieved with
设计,合成并使用了不同电子接头的共轭受体-供体-受体小分子,并将其用于有机太阳能电池。所有这些小分子均显示出较高的光转换效率(PCE),在模拟AM 1.5G条件下的光转换效率范围为3.18-6.15%。使用聚二甲基硅氧烷作为添加剂的T3 / PC 71 BM共混设备,可实现最大PCE为6.15%,高V oc为0.85 V,J sc为10.79 mA cm -2和显着FF为67.1%。