设计,合成并成功利用了三种新颖的有机染料,分别编码为TK1,TK2和TK3,它们结合了两个供体部分,即氰基丙烯酸作为受体/锚定基团,二苯并富烯核心和低聚噻吩间隔基。在染料敏化太阳能电池中。包含两个噻吩环作为间隔基的染料TK3的IPCE作用谱具有从390 nm到600 nm的高平稳段,开路光电压增加了40 mV,短路光电流增加了7.03 mA cm -1,相对于TK1。使用CDCA作为共吸附剂材料,所述Ĵ SC的TK3增大到14.98毫安厘米在基于液体电解质的DSSC中,与TK1(1.08%)相比, TK3实现了-1的整体转化效率(7.45%)的显着提高。
different arylamine moieties. Using slow evaporation, the four fluorenone derivatives (FO1-4) exhibit good ability to arrange into microstructures in the solid state. The electronic and steric effects of arylamine substituents influence both optical features and aggregation processes, as evidenced by photophysical and XRD characterization. SEM investigations have shown that the four FO1-4 derivatives arrange
Design and synthesis of fluorenone-based dyes: two-photon excited fluorescent probes for imaging of lysosomes and mitochondria in living cells
作者:A. L. Capodilupo、V. Vergaro、E. Fabiano、Milena De Giorgi、F. Baldassarre、Antonio Cardone、A. Maggiore、V. Maiorano、D. Sanvitto、G. Gigli、G. Ciccarella
DOI:10.1039/c4tb02116a
日期:——
Three fluorenone-derived two-photon fluorescent probes (TK) targeting the lysosomes (TK-Lyso) and mitochondria (TK-Mito1 and TK-Mito2) were synthesized by introducing different diphenylamine moieties into the fluorenone core. The TK dyes showed high biocompatibility and long-term retention, low cytotoxicity, large Stokes shift and good fluorescence quantum yield. The results of the present work disclose
Effective Tuning of Ketocyanine Derivatives through Acceptor Substitution
作者:Ambata Poe、Andrea Della Pelle、Sean Byrnes、S. Thayumanavan
DOI:10.1002/chem.201406625
日期:2015.5.18
A series of ketocyaninederivatives possessing bis(diarylamino)fluorenyl donors and variable acceptors installed at the bridging carbon atom were synthesized to investigate how the electronic structure of the dye can be systemically tunedthrough stabilization of the cyanine‐like character of the donor by increasing the acceptor strength. Analysis of the 1H NMR spectra indicates that the “charge‐separated”
合成了一系列具有双(二芳基氨基)芴基供体和安装在桥连碳原子上的可变受体的酮菁衍生物,以研究如何通过增加供体的花青样性质的稳定性来系统地调节染料的电子结构。受体强度。所述的分析1 1 H NMR谱表明该“电荷分离”在这些染料物种占优势,因为碳具有在该状态下的共振结构的正或负电荷目的地偏移低磁场或高磁场,分别根据强度受体部分。在DAA-Fl-PI中,受主强度和受主芳香度的增加表示分离态的倾向,由1中的不对称性表示1 H NMR谱图以及HOMO在芴基供体上的不均匀分布。