Photomodulated Voltammetry of Iodide/Triiodide Redox Electrolytes and Its Relevance to Dye-Sensitized Solar Cells

被引：90
|
作者：
Boschloo, Gerrit [1 ]
Gibson, Elizabeth A. [1 ]
Hagfeldt, Anders [1 ]
机构：
[1] Uppsala Univ, Dept Phys & Analyt Chem, SE-75105 Uppsala, Sweden
来源：
JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2011年 / 2卷 / 24期
基金：
瑞典研究理事会;
关键词：
NANOCRYSTALLINE TITANIUM-DIOXIDE; REDUCTION POTENTIALS; RUTHENIUM; OXIDATION; IODIDE; OSMIUM;
D O I：
10.1021/jz2014314
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Photomodulated voltammetry was used to determine the redox potentials of the diiodide radical (I-2(-center dot)) in water, acetonitrile, and 3-methoxypropionitrile. Iodide/triiodide redox electrolytes were exposed to modulated blue light, resulting in I-2(-center dot) generation. Using transparent fluorine-doped tinoxide (FTO) electrodes, two modulated photocurrent waves could be discerned in the voltammogram, from which the formal potentials for oxidation and reduction reactions of the diiodide radical were determined. E-0'(I-2(-center dot)/I-) was found to be +0.79 and +1.04 V versus NHE in acetonitrile and water, respectively. These values give guidelines for E-0'(D+/D) required for efficient regeneration of dyes used in dye-sensitized solar cells
引用
收藏
页码：3016 / 3020
页数：5
相关论文
共 50 条
  • [1] Characteristics of the Iodide/Triiodide Redox Mediator in Dye-Sensitized Solar Cells
    Boschloo, Gerrit
    Hagfeldt, Anders
    [J]. ACCOUNTS OF CHEMICAL RESEARCH, 2009, 42 (11) : 1819 - 1826
  • [2] An organic redox electrolyte to rival triiodide/iodide in dye-sensitized solar cells
    Wang, Mingkui
    Chamberland, Nathalie
    Breau, Livain
    Moser, Jacques-E.
    Humphry-Baker, Robin
    Marsan, Benoit
    Zakeeruddin, Shaik M.
    Graetzel, Michael
    [J]. NATURE CHEMISTRY, 2010, 2 (05) : 385 - 389
  • [3] An organic redox electrolyte to rival triiodide/iodide in dye-sensitized solar cells
    Wang M.
    Chamberland N.
    Breau L.
    Moser J.-E.
    Humphry-Baker R.
    Marsan B.
    Zakeeruddin S.M.
    Grätzel M.
    [J]. Nature Chemistry, 2010, 2 (5) : 385 - 389
  • [4] Role of the Triiodide/Iodide Redox Couple in Dye Regeneration in p-Type Dye-Sensitized Solar Cells
    Gibson, Elizabeth A.
    Le Pleux, Loic
    Fortage, Jerome
    Pellegrin, Yann
    Blart, Errol
    Odobel, Fabrice
    Hagfeldt, Anders
    Boschloo, Gerrit
    [J]. LANGMUIR, 2012, 28 (15) : 6485 - 6493
  • [5] Alternate redox electrolytes in dye-sensitized solar cells
    LU JianFeng
    [J]. Chinese Science Bulletin, 2012, 57 (32) : 4131 - 4142
  • [6] Alternate redox electrolytes in dye-sensitized solar cells
    Lu JianFeng
    Bai Jie
    Xu XiaoBao
    Li ZhiHong
    Cao Kun
    Cui Jin
    Wang MingKui
    [J]. CHINESE SCIENCE BULLETIN, 2012, 57 (32): : 4131 - 4142
  • [7] Crystal formation involving 1-methylbenzimidazole in iodide/triiodide electrolytes for dye-sensitized solar cells
    Fischer, Andreas
    Pettersson, Henrik
    Hagfeldt, Anders
    Boschloo, Gerrit
    Kloo, Lars
    Gorlov, Mikhail
    [J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2007, 91 (12) : 1062 - 1065
  • [8] Influence of Different Electrolytes on the Reaction Mechanism of a Triiodide/Iodide Redox Couple on the Platinized FTO Glass Electrode in Dye-Sensitized Solar Cells
    Tang, Yingtong
    Pan, Xu
    Zhang, Changneng
    Dai, Songyuan
    Kong, Fantai
    Hu, Linhua
    Sui, Yifeng
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (09): : 4160 - 4167
  • [9] Recent developments in redox electrolytes for dye-sensitized solar cells
    Wang, Mingkui
    Graetzel, Carole
    Zakeeruddin, Shaik M.
    Graetzel, Michael
    [J]. ENERGY & ENVIRONMENTAL SCIENCE, 2012, 5 (11) : 9394 - 9405
  • [10] Binary redox electrolytes used in dye-sensitized solar cells
    Nath, Narayan Chandra Deb
    Lee, Jae-Joon
    [J]. JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2019, 78 : 53 - 65
12345