Preparation of Dye-sensitized Solar Cell Photoanode Based on High Aspect RatioTiO2 Nanowires
YANG Lu1, GUO Min2, SONG Zhicheng1, LIU Dawei1, NI Yufeng1
1 SPIC Solar Power Xi'an Co. Ltd., Xi'an 710100, China; 2 School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
Abstract: The stirring hydrothermal method was performed to synthesis the ultra-long bending TiO2 NWs, and the influence of stirring hydrothermal process on the morphology and structure of the nanowires were explored. On this basis, the high aspect ratio TiO2 NWs/TiO2 NP composite photoanodes were constructed. The dependence of the DSSC photoelectric properties on the content of TiO2 NWs was studied. The results indicated that, when the hydrothermal stirring rate was 800 r·min-1 and the reaction time was 24 h, the TiO2 NWs possessed significantly high length-diameter ratio was obtained. Due to the excellent electron transport properties and light scattering effect of TiO2 NWs, the performance of DSSC was greatly improved. When the content of TiO2 NWs was increased from 0% to 20%, the transport resistance of the cell reduced from 5.98 Ω·cm2 to 3.79 Ω·cm2 and the electron diffusion length increased correspondingly (from 22.66 μm to 45.98 μm),the efficiency of DSSC increased to 5.26%, an increase of 22.9%. As the content of nanowires continues to increase, the low dye loading leads to a reduction in current and conversion efficiency.
杨露, 郭敏, 宋志成, 刘大伟, 倪玉凤. 基于高长径比TiO2纳米线的染料敏化太阳能电池光阳极的制备[J]. 材料导报, 2020, 34(Z1): 7-12.
YANG Lu, GUO Min, SONG Zhicheng, LIU Dawei, NI Yufeng. Preparation of Dye-sensitized Solar Cell Photoanode Based on High Aspect RatioTiO2 Nanowires. Materials Reports, 2020, 34(Z1): 7-12.
1 O'Regan B, Grätzel M. Nature,1991,353(6346),737. 2 Mathew S, Yella A, Gao P, et al. Nature Chemistry,2014,6(3),242. 3 Halme J, Vahermaa P, Miettunen K, et al. Advanced Energy Materials,2010,22(35),E210. 4 Keis K, Magnusson E, et al. Solar Energy Materials & Solar Cells,2002,73(1),51. 5 Law M, Greene L E, Johnson J C, et al. Nature Materials,2005,4(6),455. 6 Jiang C Y, Sun X W, Lo G Q, et al. Applied Physics Letters,2007,90(26),263501. 7 Schmidt M L, Macmanus D J L. Materials Today,2007,10(5),40. 8 Feng X, Shankar K, Varghese O K, et al. Nano Letters,2008,8(11),3781. 9 Ghadiri E, Taghavinia N, Zakeeruddin S M, et al. Nano Letters,2010,10(5),1632. 10 李芬.TiO2纳米棒的制备及其在染料敏化太阳能电池中的应用.硕士学位论文,华中科技大学,2015. 11 Song M Y, Kim D K, Ihn K J, et al. Nanotechnology,2004,15(12),1861. 12 Yang L, Leung W F. Advanced Materials,2013,25(12),1792. 13 Yip C T, Guo M, Huang H T, et al. Nanoscale,2012,4(2),448. 14 Roy P, Kim D, Paramasivam I, et al. Electrochemistry Communications,2009,11(5),1001. 15 Hafez H, Lan Z, Li Q, et al. Nanotechnology Science & Applications,2010,3,45. 16 Tang Y X, Zhang Y Y, Deng J Y, et al. Advanced Materials,2014,26(35),6111. 17 Cushing B L, Kolesnichenko V L, O'Connor C J. Chemical Reviews,2004,104(9),3893. 18 Banfield J F, Welch S A, Zhang H, et al. Science,2000,289(5480),751. 19 Penn R L, Banfield J F. Science,1998,281(5379),969. 20 Smigelskas A D, Kirkendall E O. Transaction of American Institute of Mining, Metallurgical, and Petroleum Engineers,1947,171,130. 21 Lin J, Guo M, Cyip C T, et al. Advanced Functional Materials,2013,23(47),5952.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2020, Vol. 34 
