基于苝的多环芳烃电子给体用于高效太阳能电池染料。
A Perylene-Based Polycyclic Aromatic Hydrocarbon Electron Donor for a Highly Efficient Solar Cell Dye.
机构信息
Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310028, P.R. China.
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P.R. China.
出版信息
ChemSusChem. 2017 Jul 21;10(14):2962-2967. doi: 10.1002/cssc.201700916. Epub 2017 Jul 5.
The continuing efforts to develop novel polycyclic aromatic hydrocarbons and exploit them as building blocks to create organic donor-acceptor (D-A) dyes with impressive excited-state features should offer an excellent means by which to improve the power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs). To this end, a nonacyclic aromatic hydrocarbon, N-annulated benzoindenopentaphene (NBIP) was tethered with multiple solubilizing groups, including NBIPs with one 2-hexyldecyl, with one 2-hexyldecyloxy, and with four 4-hexylphenyl substituents. The side- and end-chain-functionalized NBIPs can be conveniently prepared in excellent yield, and further cross-coupled with 4-(7-ethynylbenzo[c][1,2,5]thiadiazol-4-yl)benzoic acid to afford a metal-free D-A dye, which achieves a high power conversion efficiency of 12.6 % under AM1.5G illumination in DSSCs without need for any coadsorbent.
为了提高染料敏化太阳能电池 (DSSC) 的功率转换效率 (PCE)，人们一直在努力开发新型多环芳烃，并将其用作构建块，以创建具有令人印象深刻的激发态特性的有机给体-受体 (D-A) 染料。为此，将非芳环芳烃 N-稠合苯并茚戊并五烯 (NBIP) 用多个增溶基团键合，包括带有一个 2-己基癸基、一个 2-己基癸氧基和四个 4-己基苯基取代基的 NBIP。侧链和端链官能化的 NBIP 可以以优异的产率方便地制备，并进一步与 4-(7-乙炔基苯并[c][1,2,5]噻二唑-4-基)苯甲酸交叉偶联，得到一种无金属 D-A 染料，该染料在 DSSC 中无需任何共吸附剂即可在 AM1.5G 照射下实现 12.6%的高光功率转换效率。
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