Two-Dimensional Graphene Bridges Enhanced Photoinduced Charge Transport in Dye-Sensitized Solar Cells

被引:858
作者
Yang, Nailiang [1 ,2 ]
Zhai, Jin [1 ,3 ]
Wang, Dan [1 ,2 ]
Chen, Yongsheng [4 ]
Jiang, Lei [3 ]
机构
[1] Beijing Univ Aeronaut & Astronaut, Beijing 100191, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
[3] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, BNLMS, Beijing 100191, Peoples R China
[4] Nankai Univ, Coll Chem, Inst Polymer Chem, Tianjin 300071, Peoples R China
关键词
two-dimensional; graphene; photoanode; dye-sensitized solar cells; charge transport; TIO2 NANOTUBE ARRAYS; CONVERSION EFFICIENCY; CARBON; REDUCTION; GRAPHITE; ELECTRODES; SCAFFOLDS; IMPEDANCE; FILMS;
D O I
10.1021/nn901660v
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
As a novel two-dimensional (2D) material, graphene shows great benefits in electric and material science. Compared to 1D nanomaterials, it may show more excellent properties. Here, we introduced graphene as 2D bridges into the nanocrystalline electrodes of dye-sensitized solar cells, which brought a faster electron transport and a lower recombination, together with a higher light scattering. On the basis of these advantages, the short-circuit current density was increased by 45% without sacrificing the open-circuit voltage, and the total conversion efficiency was 6.97%, which was increased by 39%, comparing with the nanocrystalline titanium dioxide photoanode, and it was also much better than the 1D nanomaterial composite electrode.
引用
收藏
页码:887 / 894
页数:8
相关论文
共 42 条
  • [1] Solution-Gated Epitaxial Graphene as pH Sensor
    Ang, Priscilla Kailian
    Chen, Wei
    Wee, Andrew Thye Shen
    Loh, Kian Ping
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (44) : 14392 - +
  • [2] Evaluation of solution-processed reduced graphene oxide films as transparent conductors
    Becerril, Hdctor A.
    Mao, Jie
    Liu, Zunfeng
    Stoltenberg, Randall M.
    Bao, Zhenan
    Chen, Yongsheng
    [J]. ACS NANO, 2008, 2 (03) : 463 - 470
  • [3] Single-walled carbon nanotube scaffolds for dye-sensitized solar cells
    Brown, Patrick
    Takechi, Kensuke
    Kamat, Prashant V.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (12) : 4776 - 4782
  • [4] Dye-sensitized solar cells with conversion efficiency of 11.1%
    Chiba, Yasuo
    Islam, Ashraful
    Watanabe, Yuki
    Komiya, Ryoichi
    Koide, Naoki
    Han, Liyuan
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2006, 45 (24-28): : L638 - L640
  • [5] Patterned graphene as source/drain electrodes for bottom-contact organic field-effect transistors
    Di, Chong-an
    Wei, Dacheng
    Yu, Gui
    Liu, Yunqi
    Guo, Yunlong
    Zhu, Daoben
    [J]. ADVANCED MATERIALS, 2008, 20 (17) : 3289 - +
  • [6] Graphene - Nanoelectronics goes flat out
    Freitag, Marcus
    [J]. NATURE NANOTECHNOLOGY, 2008, 3 (08) : 455 - 457
  • [7] The rise of graphene
    Geim, A. K.
    Novoselov, K. S.
    [J]. NATURE MATERIALS, 2007, 6 (03) : 183 - 191
  • [8] Electronic transport properties of individual chemically reduced graphene oxide sheets
    Gomez-Navarro, Cristina
    Weitz, R. Thomas
    Bittner, Alexander M.
    Scolari, Matteo
    Mews, Alf
    Burghard, Marko
    Kern, Klaus
    [J]. NANO LETTERS, 2007, 7 (11) : 3499 - 3503
  • [9] Photoelectrochemical cells
    Grätzel, M
    [J]. NATURE, 2001, 414 (6861) : 338 - 344
  • [10] Synthesis and application of highly ordered arrays of TiO2 nanotubes
    Grimes, Craig A.
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2007, 17 (15) : 1451 - 1457