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首页> 外文期刊>Journal of power sources >Novel zinc porphyrin with phenylenevinylene meso-substituents: Synthesis and application in dye-sensitized solar cells
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Novel zinc porphyrin with phenylenevinylene meso-substituents: Synthesis and application in dye-sensitized solar cells

机译：含亚苯基亚乙烯基中位取代基的新型卟啉锌：在染料敏化太阳能电池中的合成及应用

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摘要

A novel zinc porphyrin, P, with phenylenevinylene segments at two opposite meso-positions and car-boxyphenyl at the other two meso-positions of the porphyrin ring, was synthesized and characterized. The phenylenevinylene substituents were terminated with electron-accepting 4-nitro-a-cyanostilbene units. Elongation of the We have investigated the application of P in quasi solid state dye-sensitized solar cells (DSSCs). Under illumination intensity of 100 mWcm~(-2), a power conversion efficiency of 2.90% was obtained for the DSSC based on P as sensitizer, which was significantly improved to 4.22% upon addition of deoxycholic acid (DCA) into the P solution for TiO_2 sensitization. Coadsorption of DCA decreased the dye adsorption, but significantly improved both short circuit current (∫_(sc)) and open circuit voltage (V_(oc)). The breakup of ight improve the electron injection yield and thus ∫_(sc). The electrochemical impedance data indicate that the electron lifetime was improved by the coadsorption of DCA, which was attributed to the improvement in both V_(oc) and ∫_(sc). The increase in∫(sc) has also been attributed to the reduction of the back reaction i.e., the recombination of electrons with tri-iodide ions.
机译：合成并表征了一种新型的卟啉锌P，其在卟啉环的两个相对的中间位置具有亚苯基亚乙烯基链段，而在卟啉环的另两个中间位置具有羧基苯基。亚苯基亚乙烯基取代基被电子接受的4-硝基-α-氰基二苯乙烯单元终止。的伸长率我们已经研究了P在准固态染料敏化太阳能电池（DSSC）中的应用。在100 mWcm〜（-2）的光照强度下，基于P作为敏化剂的DSSC的功率转换效率为2.90％，在P溶液中加入脱氧胆酸（DCA）后，DSSC的功率转换效率显着提高至4.22％。 TiO_2敏化。 DCA的共吸附减少了染料的吸附，但显着提高了短路电流（∫_（sc））和开路电压（V_（oc））。 ight的破裂提高了电子注入的产率，从而提高了∫_（sc）。电化学阻抗数据表明，通过DCA的共吸附可以改善电子寿命，这归因于V_（oc）和∫_（sc）的提高。 ∫（sc）的增加也归因于反反应的减少，即电子与三碘离子的复合。

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  • 来源
    《Journal of power sources》 |2011年第15期|p.6622-6628|共7页
  • 作者

    JA Mikroyannidis; G. Charalambidis; A.G. Coutsolelos; P. Balraju; G.D. Sharma;

  • 作者单位

    Chemical Technology Laboratory, Department of Chemistry, University o/Patras, CR-26500 Patras, Greece;

    Department of Chemistry, University of Crete, Laboratory ofBioinorganic Chemistry, Voutes Campus, P.O. Box 2208, 71003 Heraklion, Crete, Greece;

    Department of Chemistry, University of Crete, Laboratory ofBioinorganic Chemistry, Voutes Campus, P.O. Box 2208, 71003 Heraklion, Crete, Greece;

    Physics Department, Molecular Electronic and Optoelectronic Device Laboratory, JNV University, Jodhpur (Raj.) 342005, India;

    Physics Department, Molecular Electronic and Optoelectronic Device Laboratory, JNV University, Jodhpur (Raj.) 342005, India,R&D centre for Engineering and Science, Jaipur Engineering College, Kukas, Jaipur (Raj.), India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    zinc porphyrin; dye-sensitized solar cells; phenylnevinylene; cyanovinylene; photosensitizer;

    机译：卟啉锌;染料敏化太阳能电池;苯基亚乙烯基;氰基亚乙烯基;光敏剂;

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