Nanographite/polyaniline composite films as the counter electrodes for dye-sensitized solar cells
出版日期:2011-06-01 00:00:00
著者: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
單位:淡江大學化學工程與材料工程學系
出版者:Cambridge: Royal Society of Chemistry
著錄名稱、卷期、頁數:Journal of Materials Chemistry 21(28), pp.10384-10389
摘要: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%).
關鍵字:Sye-sensitized solar cell
語言:en
ISSN:0959-9428
期刊性質:國外
收錄於:SCI
通訊作者:Lin, Cheng-Lan; Ho, Kuo-Chuan
國別:GBR
出版型式:紙本