Nitroxide Radicals for Highly Efficient Redox Mediation in Dye-sensitized Solar Cells

被引：53
|
作者：
Kato, Fumiaki [1 ]
Hayashi, Naoki [1 ]
Murakami, Takaya [1 ]
Okumura, Chie [1 ]
Oyaizu, Kenichi [1 ]
Nishide, Hiroyuki [1 ]
机构：
[1] Waseda Univ, Dept Appl Chem, Tokyo 1698555, Japan
来源：
CHEMISTRY LETTERS | 2010年 / 39卷 / 05期
关键词：
CONVERSION EFFICIENCY; ENERGY CONVERSION; POLYMER; BATTERY; ELECTRODE; DEVICES;
D O I：
10.1246/cl.2010.464
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A robust nitroxide radical, 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and its 4-subsituted derivatives (R-TEMPO) exhibit electrochemically reversible redox properties with tunable half-wave potentials (E-1/2) based on the substituent effect. Dye-sensitized solar cells using R-TEMPO as mediators with electron-withdrawing R groups showed significantly enhanced photovoltages compared with those obtained using iodides. The linearity between the open-circuit voltage (V-oc) and E-1/2 revealed that V-oc dominated by the energy gap between the Fermi level of TiO2 and the SOMO level of R-TEMPO.
引用
收藏
页码：464 / 465
页数：2
相关论文
共 50 条
  • [41] Highly Efficient N-Heterocyclic Carbene/Pyridine-Based Ruthenium Sensitizers: Complexes for Dye-Sensitized Solar Cells
    Chang, Wei-Chun
    Chen, Huei-Siou
    Li, Ting-Yu
    Hsu, Nai-Mu
    Tingare, Yogesh S.
    Li, Chung-Yen
    Liu, Yi-Cheng
    Su, Chaochin
    Li, Wen-Ren
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (44) : 8161 - 8164
  • [42] Molecular Engineering of Push-Pull Porphyrin Dyes for Highly Efficient Dye-Sensitized Solar Cells: The Role of Benzene Spacers
    Yella, Aswani
    Mai, Chi-Lun
    Zakeeruddin, Shaik M.
    Chang, Shu-Nung
    Hsieh, Chi-Hung
    Yeh, Chen-Yu
    Graetzel, Michael
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (11) : 2973 - 2977
  • [43] Recent advances in dye-sensitized solar cells
    Rondan-Gomez, V.
    Montoya De Los Santos, I.
    Seuret-Jimenez, D.
    Ayala-Mato, F.
    Zamudio-Lara, A.
    Robles-Bonilla, T.
    Courel, Maykel
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2019, 125 (12):
  • [44] The renaissance of monolithic dye-sensitized solar cells
    Santos, Fatima
    Ivanou, Dzmitry
    Mendes, Adelio
    MATERIALS TODAY COMMUNICATIONS, 2022, 32
  • [45] Non-Corrosive, Non-Absorbing Organic Redox Couple for Dye-Sensitized Solar Cells
    Li, Dongmei
    Li, Hong
    Luo, Yanhong
    Li, Kexin
    Meng, Qingbo
    Armand, Michel
    Chen, Liquan
    ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (19) : 3358 - 3365
  • [46] Interfacial engineering for dye-sensitized solar cells
    Zhang, Shufang
    Yang, Xudong
    Qin, Chuanjiang
    Numata, Youhei
    Han, Liyuan
    JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (15) : 5167 - 5177
  • [47] Optimizing dyes for dye-sensitized solar cells
    Robertson, N
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (15) : 2338 - 2345
  • [48] Water splitting dye-sensitized solar cells
    Xu, Pengtao
    McCool, Nicholas S.
    Mallouk, Thomas E.
    NANO TODAY, 2017, 14 : 42 - 58
  • [49] Improving the Performance of Dye-Sensitized Solar Cells
    Boschloo, Gerrit
    FRONTIERS IN CHEMISTRY, 2019, 7
  • [50] Copper redox mediators with alkoxy groups suppressing recombination for dye-sensitized solar cells
    Yang, Kaiyuan
    Yang, Xichuan
    Zhang, Li
    An, Jincheng
    Wang, Haoxin
    Deng, Zijian
    ELECTROCHIMICA ACTA, 2021, 368
12345