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首页> 外文期刊>Solar Energy >Exploring the application of new carbazole based dyes as effective p-type photosensitizers in dye-sensitized solar cells
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Exploring the application of new carbazole based dyes as effective p-type photosensitizers in dye-sensitized solar cells

机译：探索新型咔唑类染料作为有效的p型光敏剂在染料敏化太阳能电池中的应用

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摘要

Herein, we report the design and the synthesis of three new D-A type metal-free carbazole based dyes (C1-3) as effective photosensitizers for p-type DSSCs. in this new design, the electron rich carboxy substituted carbazole unit has been attached to three different electron withdrawing species, viz. N,N-dimethyl barbituric acid, N,N-diethyl thiobarbituric acid and N-ethyl rhodanine. They were well-characterized by spectral, photophysical and electrochemical analyses. Further, their optical and electrochemical parameters along with molecular geometries, optimized from DFT have been employed to apprehend the effect of structures of C1-3 on their photovoltaic performances. Further, the photovoltaic performance of C1-3 was determined along with the standard dye P1 and their PCE values were found to be in the order of P1 (0.047%) > C-2 (0.040%) > C-1 (0.016%) > C-3 (0.001%). Interestingly, the NiO based p-type DSSC fabricated with C-2 carrying electron withdrawing N,N-diethyl thiobarbituric acid displayed V-oc as 59 +/- 4 mV and FF as 29 +/- 1%, which are higher than that of benchmark reference P1. This is attributed to the highest light harvesting ability, the greatest regeneration driving force and the lowest interfacial charge recombination of C-2 among the tested dyes. Conclusively, the results showcase the potential of carbazole based D-A type sensitizers in the development of efficient p-type DSSCs.
机译：在此，我们报告了三种新型D-A型无金属咔唑基染料（C1-3）的设计和合成，这些染料作为p型DSSC的有效光敏剂。在这种新设计中，富电子的羧基取代的咔唑单元已连接到三种不同的吸电子物种，即。 N，N-二甲基巴比妥酸，N，N-二乙基硫代巴比妥酸和N-乙基罗丹宁。通过光谱，光物理和电化学分析可以很好地表征它们。此外，从DFT优化的光学和电化学参数以及分子几何结构已被用于了解C1-3结构对其光电性能的影响。此外，与标准染料P1一起确定了C1-3的光电性能，发现它们的PCE值依次为P1（0.047％）> C-2（0.040％）> C-1（0.016％） > C-3（0.001％）。有趣的是，用带有吸电子N，N-二乙基硫代巴比妥酸的C-2制成的NiO基p型DSSC的V-oc为59 +/- 4 mV，FF为29 +/- 1％，高于基准参考P1。这归因于被测染料中C-2的最高集光能力，最大的再生驱动力和最低的界面电荷重组。结论是，结果证明了咔唑类D-A型敏化剂在开发高效p型DSSC方面的潜力。

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  • 来源
    《Solar Energy》 |2017年第11期|1064-1073|共10页
  • 作者

    Naik Praveen; Planchat Aurehen; Pellegrin Yann; Odobel Fabrice; Adhikari Airody Vasudeva;

  • 作者单位

    Natl Inst Technol Karnataka, Dept Chem, Organ Mat Lab, Mangalore 575025, India;

    CNRS, CEISAM, UMR 6230, UFR Sci & Tech, 2 Rue Houssiniere,BP 92208, F-44322 Nantes 3, France;

    CNRS, CEISAM, UMR 6230, UFR Sci & Tech, 2 Rue Houssiniere,BP 92208, F-44322 Nantes 3, France;

    CNRS, CEISAM, UMR 6230, UFR Sci & Tech, 2 Rue Houssiniere,BP 92208, F-44322 Nantes 3, France;

    Natl Inst Technol Karnataka, Dept Chem, Organ Mat Lab, Mangalore 575025, 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

    NiO; P-type DSSC; Sensitizers; Carbazole; DFT; Photovoltaic performance; Photocathode;

    机译：NiO;P型DSSC;敏化剂;咔唑;DFT;光伏性能;光电阴极;

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