Crown Ether-Substituted Carbazole Dye for Dye-Sensitized Solar Cells: Controlling the Local Ion Concentration at the TiO2/Dye/Electrolyte Interface

2014 ◽  
Vol 118 (30) ◽  
pp. 16749-16759 ◽  
Author(s):  
Yu Uemura ◽  
Takurou N. Murakami ◽  
Nagatoshi Koumura
Keyword(s):  
Solar Cells ◽  
Crown Ether ◽  
Dye Sensitized Solar Cells ◽  
Ion Concentration ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

scholarly journals High efficiency dye-sensitized solar cells with VOC–JSC trade off eradication by interfacial engineering of the photoanode|electrolyte interface

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40292-40300
Author(s):  
Anantharaj Gopalraman ◽  
Subbian Karuppuchamy ◽  
Saranyan Vijayaraghavan
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Surface States ◽  
Trade Off ◽  
Interfacial Engineering ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

VOC–JSC trade off is eliminated. Newly created surface states by OA in TiO2 facilitated the charge transfer kinetics.

scholarly journals TiO2/Dye/Electrolyte Interface Modification for Dye-Sensitized Solar Cells

2013 ◽  
Vol 29 (09) ◽  
pp. 1851-1864 ◽  
Author(s):  
LI Jing-Zhe ◽  
◽  
KONG Fan-Tai ◽  
WU Guo-Hua ◽  
HUANG Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Interface Modification ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

scholarly journals There Is a Future for N-Heterocyclic Carbene Iron(II) Dyes in Dye-Sensitized Solar Cells: Improving Performance through Changes in the Electrolyte

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4181 ◽  
Author(s):  
Mariia Karpacheva ◽  
Vanessa Wyss ◽  
Catherine E. Housecroft ◽  
Edwin C. Constable
Keyword(s):  
Solar Cells ◽  
Alkyl Chain ◽  
Electrochemical Impedance ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Ion Concentration ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

By systematic tuning of the components of the electrolyte, the performances of dye-sensitized solar cells (DSCs) with an N-heterocyclic carbene iron(II) dye have been significantly improved. The beneficial effects of an increased Li+ ion concentration in the electrolyte lead to photoconversion efficiencies (PCEs) up to 0.66% for fully masked cells (representing 11.8% relative to 100% set for N719) and an external quantum efficiency maximum (EQEmax) up to approximately 25% due to an increased short-circuit current density (JSC). A study of the effects of varying the length of the alkyl chain in 1-alkyl-3-methylimidazolium iodide ionic liquids (ILs) shows that a longer chain results in an increase in JSC with an overall efficiency up to 0.61% (10.9% relative to N719 set at 100%) on going from n-methyl to n-butyl chain, although an n-hexyl chain leads to no further gain in PCE. The results of electrochemical impedance spectroscopy (EIS) support the trends in JSC and open-circuit voltage (VOC) parameters. A change in the counterion from I− to [BF4]− for 1-propyl-3-methylimidazolium iodide ionic liquid leads to DSCs with a remarkably high JSC value for an N-heterocyclic carbene iron(II) dye of 4.90 mA cm−2, but a low VOC of 244 mV. Our investigations have shown that an increased concentration of Li+ in combination with an optimized alkyl chain length in the 1-alkyl-3-methylimidazolium iodide IL in the electrolyte leads to iron(II)-sensitized DSC performances comparable with those of containing some copper(I)-based dyes.

I?3/I? Redox Behavior of Alkali-metal Iodide Complexes with Crown Ether/Cryptand Macrocycles and Their Applications to Dye-sensitized Solar Cells

2005 ◽  
Vol 23 (3) ◽  
pp. 251-254 ◽  
Author(s):  
Shi Cheng-Wu ◽  
Dai ◽  
Song-Yuan ◽  
Wang Kong-Jia ◽  
Pan Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crown Ether ◽  
Alkali Metal ◽  
Dye Sensitized Solar Cells ◽  
Redox Behavior ◽  
Dye Sensitized ◽  
Metal Iodide ◽  
Sensitized Solar Cells

Photoanode/Electrolyte Interface Stability in Aqueous Dye-Sensitized Solar Cells

2016 ◽  
Vol 5 (2) ◽  
pp. 300-311 ◽  
Author(s):  
Simone Galliano ◽  
Federico Bella ◽  
Claudio Gerbaldi ◽  
Marisa Falco ◽  
Guido Viscardi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Interface Stability ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

Effects of 1,3-dialkylimidazolium cations with different lengths of alkyl chains on the Pt electrode/electrolyte interface in dye-sensitized solar cells

2011 ◽  
Vol 56 (9) ◽  
pp. 3395-3400 ◽  
Author(s):  
Yingtong Tang ◽  
Xu Pan ◽  
Changneng Zhang ◽  
Linhua Hu ◽  
Fantai Kong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Pt Electrode ◽  
Alkyl Chains ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

Effects of an Intercalation Nanocomposite at the Photoanode/Electrolyte Interface in Quasi-Solid Dye-Sensitized Solar Cells

2011 ◽  
Vol 115 (36) ◽  
pp. 17986-17992 ◽  
Author(s):  
Rui Gao ◽  
Liduo Wang ◽  
Yi Geng ◽  
Beibei Ma ◽  
Yifeng Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

scholarly journals Improvement of Thiolate/Disulfide Mediated Dye-Sensitized Solar Cells through Supramolecular Lithium Cation Assembling of Crown Ether

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Linfeng Liu ◽  
Xiong Li ◽  
Jiangzhao Chen ◽  
Yaoguang Rong ◽  
Zhiliang Ku ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crown Ether ◽  
Dye Sensitized Solar Cells ◽  
Lithium Cation ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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