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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/54964

    Title: Nanographite/polyaniline composite films as the counter electrodes for dye-sensitized solar cells
    Authors: Huang, Kuan-Chieh;Huang, Jen-Hsien;Wu, Chia-Hui;Liu, Chen-Yu;Chen, Hsin-Wei;Chu, Chih-Wei;Lin, Jiann-Tsuen;Lin, Cheng-Lan;Ho, Kuo-Chuan
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Sye-sensitized solar cell
    Date: 2011-06
    Issue Date: 2011-08-04 12:00:40 (UTC+8)
    Publisher: Cambridge: Royal Society of Chemistry
    Abstract: Nanographite/polyaniline (NG/PANI) composite films were developed and characterized, and the performances of the dye-sensitized solar cells (DSSCs) employing these composite films as the counter electrode (CE) were evaluated in this study. The nanographite/aniline (NG/ANI) particle was firstly synthesized by a reflux method and served as the monomer for the electro-polymerization of the NG/PANI composite films. The surface modification of NG by ANI was confirmed by EDX mapping, TEM image, zeta-potential, and UV-Vis absorption measurements. The electro-polymerized NG/PANI composite films were characterized by Raman spectroscopy, XPS, and conducting-AFM, which verified the successful incorporation of NGs in the PANI films. The electro-catalytic activity of the NG/PANI composite film was evaluated using the positive-feedback mode of scanning electrochemical microscopy (SECM), by which a comparable heterogeneous rate constant (ks0) for the ferrocene/ferrocenium (Fc/Fc+) redox pair was obtained and compared with that of a sputtered Pt. The DSSC employing the NG/PANI (20 mC cm−2) CE exhibited a higher short-circuit current density (JSC) but lower fill factor (FF), and gave a comparable power-conversion efficiency (η) of 7.07%, as compared to that of a DSSC containing a sputtered Pt CE (η = 7.19%).
    Relation: Journal of Materials Chemistry 21(28), pp.10384-10389
    DOI: 10.1039/C1JM10576K
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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