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TiCl4处理多孔薄膜对染料敏化太阳电池中电子传输特性影响研究

奚小网 胡林华 徐炜炜 戴松元

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TiCl4处理多孔薄膜对染料敏化太阳电池中电子传输特性影响研究

奚小网, 胡林华, 徐炜炜, 戴松元

Influence of TiCl4 nanoporous TiO2 films on the performance of dye-sensitized solar cells

Xi Xiao-Wang, Hu Lin-Hua, Xu Wei-Wei, Dai Song-Yuan
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  • 借助于强度调制光电流谱(IMPS)和强度调制光电压谱(IMVS)技术,研究了纳米TiO2多孔薄膜在TiCl4溶液处理后组装成的染料敏化太阳电池(DSC)中电子传输和背反应动力学特性. 研究表明:纳米TiO2多孔薄膜经TiCl4溶液处理后,电池中暗电流减小,电子寿命n明显延长,电子传输时间d缩短,电子有效扩散系数Dn增大,电子扩散长度Ln值升高,入射单色光子/电子转化效率IPCE增加,光生电荷量Qoc显著增加. 文章从微观层面上研究了TiCl4溶液处理纳米TiO2多孔薄膜对DSC内部电子的产生、传输和复合过程的影响,从而很好地解释了电池光伏性能随TiCl4溶液处理的变化关系.
    The mechanisms of electron transport and back-reaction in dye-sensitized solar cells (DSCSs) are investigated by intensity-modulated photocurrent spectroscopy (IMPS) and intensity-modulated photovoltage spectroscopy (IMVS). The DSCSs with and without TiCl4-treated nanoporous TiO2 films are measured by IMPS/IMVS. The results indicate that the electron lifetime (n), the diffusion coefficient (Dn), the diffusion length (Ln), the incident photon to current efficiency (IPCE) and the photoinduced charge (Qoc) increase markedly, while the dark current and the electron transit time (d) decreases for the TiCl4-treated nanoporous TiO2 films. The influence of TiCl4-treatment of nanoporous TiO2 film on the electron generation, the transport and the recombination processes is investigated at a microscopic level.
    • 基金项目: 国家重点基础研究发展计划(批准号:2011CBA00700)、国家高技术研究发展计划(批准号:2009AA050603)和中国科学院知识创新工程重要方向(批准号:KGCX2-YW-326)资助的课题.
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  • [1]

    Hagfeldt A, Grtzel M 1995 Chem. Rev. 95 49

    [2]

    Frank A J, Kopidakis N, van de Lagemaat J 2004 Coordin. Chem. Rev. 248 1165

    [3]
    [4]
    [5]

    Bisquert J, Zaban A, Greenshtein M, Mora-Sero I 2004 J. Am. Chem. Soc. 126 13550

    [6]

    O' Regan B, Grtzel M 1991 Nature 353 737

    [7]
    [8]

    Chen C Y, Wang M K, Li J Y, Pootrakulchote N, Alibabaei L, Ngoc-le C, Decoppet J D, Tsai J H, Gratzel C, Wu C G, Zakeeruddin S M, Gratzel M 2009 ACS Nano. 3 3103

    [9]
    [10]

    Dai S Y, Wang K J 2003 Chin. Phys. Lett. 20 953

    [11]
    [12]
    [13]

    Zhao X C, Yang P, Lin H, Li X, Xu C Y, Li J B 2010 J. Chin. Ceram. Soc. 38 25 (in Chinese) [赵晓冲、杨 盼、林 红、李 鑫、许晨阳、李建保 2010 硅酸盐学报 38 25]

    [14]
    [15]

    Zhang Y, Zhao Y, Cai N, Xiong S Z 2008 Acta Phys. Sin. 57 5806 (in Chinese) [张 苑、赵 颖、蔡 宁、熊绍珍 2008 物理学报 57 5806]

    [16]

    Fang X Q, Dai S Y, Wang K J, Shi C W 2006 Acta Energiae Sol. Sin. 27 973 (in Chinese)[方霞琴、戴松元、王孔嘉、史成武 2006 太阳能学报 27 973]

    [17]
    [18]

    Feng X M, Huang X W, Huang H, Shen P, Zhao B, Tan S T 2010 Acta Chim. Sin. 68 1123 (in Chinese) [冯小明、黄先威、黄 辉、沈 平、赵 斌、谭松庭 2010 化学学报 68 1123]

    [19]
    [20]
    [21]

    Ito S, Liska P, Comte P, Charvet R, Pechy P, Bach U, Schmidt-Mende L, Zakeeruddin S M, Kay A, Nazeeruddin M K, Gratzel M 2005 Chem. Commun. 34 4351

    [22]

    Sommeling P M, O'Regan B C, Haswell R R, Smit H J P, Bakker N J, Smits J J T, Kroon J M, van Roosmalen J A M 2006 J. Phys. Chem. B 110 19191

    [23]
    [24]
    [25]

    Barnes P R F, Anderson A Y, Koops S E, Durrant J R, ORegan B C 2009 J. Phys. Chem. C 113 1126

    [26]

    Doohun Kim, Poulomi Roy, Kiyoung L, Schmuki P 2010 Elect. Commun. 12 574

    [27]
    [28]
    [29]

    Liang L Y, Dai S Y, Fang X Q, Hu L H 2008 Acta Phys. Sin. 57 1956 (in Chinese) [梁林云、戴松元、方霞琴、胡林华 2008 物理学报 57 1956]

    [30]
    [31]

    Dloczik L, Ileperuma O, Lauermann I, Peter L M, Ponomarev E A, Redmond G, Shaw N J, Uhlendorf I 1997 J. Phys. Chem. B 101 10281

    [32]
    [33]

    Liu W Q, Kou D X, Hu L H, Huang Y, Jiang N Q, Dai S Y 2010 Acta Phys. Sin. 59 5141 (in Chinese) [刘伟庆、寇东星、胡林华、黄 阳、姜年权、戴松元 2010 物理学报 59 5141]

    [34]

    Nazeeruddin M K, Kay A, Rodicio I, Humpbry-Baker R, Miiller E, Liska P, Vlachopoulos N, Gratzel M 1993 J. Am. Chem. Soc. 115 6382

    [35]
    [36]
    [37]

    Hu L H, Dai S Y, Wang K J 2005 Acta Phys. Sin. 54 1914 (in Chinese) [胡林华、戴松元、王孔嘉 2005 物理学报 54 1914]

    [38]
    [39]

    Zeng L Y, Dai S Y, Wang K J, Kong F T, Hu L H 2005 Acta Energ. Sol. Sin. 26 589 (in Chinese)[曾隆月、戴松元、王孔嘉、孔凡太、胡林华 2005 太阳能学报 26 589]

    [40]

    Park N G, Schlichthorl G, van de Lagemaat J, Cheong H M, Mascarenhas A, Frank A J 1999 J. Phys. Chem. B 103 3308

    [41]
    [42]

    Fredin K, Nissfolk J, Hagfeldt A 2005 Sol. Energ. Mat. Sol. C 86 283

    [43]
    [44]
    [45]

    Peter L M, Wijayantha K G U 2000 Electrochimica Acta 45 4543

    [46]

    Schlichthrl G, Huang S Y, Sprague J, Frank A J 1997 J. Phys. Chem. B 101 8141

    [47]
    [48]
    [49]

    Kusama H, Kurashige M, Sayama K, Yanagida M, Sugihara H 2007 J. Photoch. Photobio. A 189 100

计量
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出版历程
  • 收稿日期:  2011-01-16
  • 修回日期:  2011-01-23
  • 刊出日期:  2011-11-15

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